2690023043 Renovate Armory Waterford Addendum 2.pdf
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- Solicitation number
- RFQ 171 250000000531 4
- Issued by
- Benzie County, Michigan
About this file
This is Addendum No. 2 to the bid documents for a construction project issued by the State of Michigan Department of Military and Veterans Affairs for the renovation of the Armory in Waterford (Project 2690023043). The addendum revises and clarifies multiple drawing sheets and specification sections, including replacements to sheets G1.0, AD1.0, AD2.0, A1.0 through A4.2, A6.1, and the addition of new signage sheets A8.0 and A8.1. New specification sections are added for unit masonry (042000), concrete unit masonry (042200), thermal insulation (072100), and dimensional letter signage (101419), while Section 114000 for food service equipment and Section 097100 for door hardware are revised. The addendum addresses 59 questions and clarifications submitted by bidders, covering topics including alternate work scope definitions, wire mesh partition locations, recirculating pump specifications, kitchen equipment cleaning and maintenance allowances, electrical panel specifications, asbestos abatement, signage requirements, and fire suppression systems. The original bid opening date was extended from an earlier date to August 6, 2025, at 2:00 PM EST to allow adequate time for bidders to incorporate the addendum revisions and obtain meaningful subcontractor quotations. A mandatory walk-through of the existing facility was provided to bidders to assess current conditions.
The Department of Military and Veterans Affairs established a $10,000 line-item allowance for cleaning of existing kitchen equipment and servicing/maintenance/adjustment of the existing hood and ANSUL system to ensure code compliance following removal of the fryer. Bidders are required to include asbestos abatement costs in their base bids, with a lead and asbestos survey report ("25305 SOM Waterford Armory ACM LCP Survey Report 6.23.25") provided separately. The project contract term is 270 days from the notice to proceed, with no extension available for exterior work completion. All materials, equipment, and systems carry a minimum one-year warranty for materials and workmanship, with some items having longer warranties as specified in individual specification sections. Contractors are responsible for all permits, including fire alarm system permits. The project involves substantial renovations including masonry work, HVAC modifications with recirculating pumps, electrical panel replacements, signage installation, food service equipment servicing, and miscellaneous structural and interior finish upgrades.
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FORM BF-1
State of Michigan DATE ISSUED: July 30, 2025 Department of Military and Veterans Affairs INDEX CODE NO: 1655 Construction & Facilities Office Project: 2690023043 Reserve Forces Service Center File No.: 511/25374.AGY 3423 N. Martin Luther King Blvd. Rm. 321 State Unit: Dept. of Military Affairs Lansing, Michigan 48906-2934
SUBJECT: Renovate Armory - Waterford BID OPENING: August 6, 2025, 2:00PM EST
ADDENDUM NO. 2
TO: All Bidders
SUBJECT: This Addendum is issued to revise and clarify the following items:
- Revisions to drawing sheets and specifications.
REVISED SHEETS (BOUND SEPARATELY):
1. Sheet G1.0 is replaced in its entirety.
2. Sheet AD1.0 is replaced in its entirety.
3. Sheet AD2.0 is replaced in its entirety.
4. Sheet A1.0 is replaced in its entirety.
5. Sheet A2.0 is replaced in its entirety.
6. Sheet A2.1 is replaced in its entirety.
7. Sheet A2.2 is replaced in its entirety.
8. Sheet A3.0 is replaced in its entirety.
9. Sheet A3.1 is replaced in its entirety.
10. Sheet A4.2 is replaced in its entirety.
11. Sheet A6.1 is replaced in its entirety.
12. Sheet A8.0 - SIGNAGE is added
13. Sheet A8.1 – SIGNAGE is added
ADDITIONS & REVISIONS TO SPECIFICATIONS (BOUND SEPARATELY)
SPECIFICATIONS SECTION 042000 UNIT MASONRY 23043: ADDED
SPECIFICATIONS SECTION 042200 CONCRETE UNIT MASONRY 23043: ADDED
SPECIFICATIONS SECTION 072100 THERMAL INSULATION 23043: ADDED
SPECIFICATIONS SECTION 097100 DOOR HARDWARE 23043: REVISED
SPECIFICATIONS SECTION 101419 DIMENSIONAL LETTER SIGNAGE 23043: ADDED
SPECIFICATIONS SECTION 114000 FOOD SERVICE EQUIPMENT 23043: REVISED
QUESTIONS/ANSWERS & CLARIFICATIONS:
Question #1: On Drawing C7, the alternate drawing, Alternate #2 work is indicated but it would appear that the
Alternate #2 write-up in the specification defines all the site work not part of Alternate #1 should be deducted as part of Alternate #2. On Drawing C7 there is some work remaining not marked as Alternate #2 work such as tree removal, new asphalt curbs, seeding, etc. Is all the remaining site work to be eliminated and deducted as Alternate #2 or just what is marked on Drawing C7?
Answer #1: Include all of the remaining site work on Alternate #2 not mentioned in Alternate #1 for example tree removal, seeding, etc.
Question #2: There is a Drawing C11 referenced on Drawing C7 but there seems to be no Drawing C11.
Answer #2: Change C11 to C7 on alternate schedule and notes.
Item #3: Reference Drawing A9.0: There is a finish on some walls mark CS. What is finish CS?
Answer #3: DMVA sees no reference to a wall CS. There is a SC, which the legend states is Sealed Concrete.
Item #4: Wire Mesh Partitions: Wire mesh partitions are specified but cannot be found on the drawings. Please locate where these partitions are to be installed and their layout.
Answer #4: Wire mesh partitions are shown on drawing sheet A2.1 in the unit storage area – Room 120. See the
Legend for line type & hatch recognition and dimensions on the sheet. See also Q&A response from the mandatory pre-bid meeting.
Item #5: There is a note on Drawing P2.2 on the water heater detail showing a circulating line for the hot water system, however there is no piping shown for it anywhere. Drawing P2.1 shows recirculating pumps as well. Where is it to be run?
Answer #5: Provide two recirculating pumps and piping. One in mechanical room 123A and the other in mechanical room 150. Provide piping accordingly to meet code.
Item #6: It would appear to us that with an RFI cutoff date of this Wednesday that an addendum will not be available until at least Friday. This would mean that there will be little time to get an addendum out to subs for their meaningful quotations. We would therefore request a week extension of the bid due date, changing the bid due date to Wednesday, August 6th.
Answer #6: The bid due date will change for this project, it is now August 6, 2025 at 2pm.
Item #7: Roof B and C on sheet AD1.1 says they have a built up roof membrane under the standing seam metal roof. Is that true?
Answer #7: There is no built up roof membrane under the metal roof on B and C roofs.
Item #8: What is the make and model of PP2?
Answer #8: PP2 is a General Electric AV-Line AV2, 3 ph, 4 wire, 1200 A, 208Y120V.
Item #9: Reference Drawing A1.0 – Where is Elevation 3/A4.2.
Answer #9: See revised Sheet A4.2 in addendum 2 for additional information.
Item #10: Please provide counter elevations and details for counters in Rooms 112 and 118.
Answer #10: See Sheet A4.2 for elevations of Rooms 112 & 118 as well as section/details of the cabinets & counter.
Item #11: To what degree is Keynote 1 on sheet A1.0 to be included in the bid? Is there a standard allowance than can be held by bidders for the "servicing and modification" of the referenced items?
Answer #11: DMVA requests that the contractor include a $10k line item allowance for both the cleaning of existing kitchen equipment and the cleaning / maintenance / adjustment to the existing hood and ANSUL system.
See responses below for additional information.
Item #12: Section 114000 specs only call for a coffee maker, ice maker, and water filter system. I don’t see those indicated on any of the plans. Do you have a plan that shows where these are being installed or quantities required?
Answer #12: The location of the coffee maker, ice maker and water filter have been added to Sheet A1.0.
Item #13: On Drawing A2.0 on 2/A2.0 there is an elevation stated as 1/A4.3. There is no Drawing A4.3.
Answer #13: See Sheet A4.2 – Interior elevation 1/A4.2.
Item #14: Elevations indicator blocks are not marked on Drawings A2.0, A4.0, A4.1 and A4.2.
Answer #14: DMVA doesn’t understand this question as the interior elevations are keyed to the floor plans.
Item #15: For the Military Gear lockers, I see Lyon and Penco are both listed as acceptable manufacturers but neither offers a TA-50 locker in a 48"W x 24"D Double Tier option. Would you prefer we provide a 48"W x 24"D single tier option, or would you be open to a slight size adjustment (36"W x 24"D) in a double-tier configuration? How should we bid this?
Answer #15: They do. Contact Bill Heafey if you opt to go with Lyon: bheafey@lyonworkspace.com p: 630-947- 1357 | c: 773-571-2493
Item #16: The locker bench for the lockers shown on Detail 3/A6.0 are not the type of bench as specified in the
Locker and Bench Spec. This is a bench built up and usually spec in an Arch Woodwork Spec. There is no such spec the project manual or a spec for the hard surface. Can you please provide such specs?
Answer #16: The intent for the bench is shown correctly in detail 3/A6.0.
Item #17: Please provide a spec for the 2’ bench in each of the change cubicles.
Answer #17: Benches are specified in Section 105113 Metal Lockers.
Item #18: We have been notified from at least 2 of the specified vault door suppliers that the vault door is not fire-rated. Fire-rating is required as we understand it. Please advise.
Answer #18: The vault door does not need to be rated.
Item #19: We cannot find some ceiling heights and no interior structure heights. These are most important to many work division trades. Please provide all interior finish ceiling heights as well as interior building bottom of structure heights.
Answer #19: Ceiling heights vary. An opportunity to visit the building and take measurements has been provided.
Item #20: We note that Section 230923-16 – Gas Instruments is missing from the specifications but is listed in the index.
Answer #20: Disregard section 230923.16 Gas Instruments from the index. This section is not included.
Item #21: It is indicated that there is asbestos abatement but there is no abatement schedule or asbestos building survey. Please provide a list of asbestos abatement items that are required to be abated.
Answer #21: There is a lead and asbestos survey bound separately called “25305 SOM Waterford Armory ACM LCP
Survey Report 6.23.25”
Item #22: The demo drawings indicate that an existing ice maker, potato peeler and dishwasher are to be removed.
Is that meant to be in the general contractors scope of work?
Answer #22: Yes. See other Q&A and addendum items for additional information.
mailto:bheafey@lyonworkspace.com
Item #23: Seeing spec section 10 1423 for panel signage/room ID signs, but no signage schedule or sign types listed in the drawings. Please clarify interior signage scope for this project.
Answer #23: See Sheets A8.0 & A8.1 for signage information.
Item #24: The title sheet shows pages P1.1, P1.2, and P1.3 are part of the set, however there are no pages labeled as such. Are these pages correlated to sheets P2, P2.1, and P2.2?
Answer #24: Yes, the pages are correlated to the sheets in the plan. The title sheet has been updated to reflect this.
Item #25: Rooms 140, 140A, and 14B are called to receive new gypsum board ceilings, however they are not called to be painted per sheet A9.0. Are these ceilings to be painted?
Answer #25: Yes, the ceilings in these rooms will be new gypsum board and are to be painted.
Item #26: Is lightning protection work required?
Answer #26: No.
Item #27: Is fire suppression rework or temporary protections required?
Answer #27: The building does not have a fire suppression system.
Item #28: Sheet A2.1 shows a partition type G that seems to indicate exterior masonry being affected by several wall infills. This masonry work is not show on the exterior elevations (sheet A3.0). Can this work be shown on sheet A3.0?
Answer #28: Yes, please see updated exterior elevation sheets.
Item #29: The door schedule on the plans shows hardware sets 1-7, however the hardware schedule in the specifications lists sets 1-4. Which is correct?
Answer #29: Please see the revised door hardware schedule in the specifications.
Item #30: Sheet A1.0 calls for wall type B to have CMU masonry toothed in to match adjacent walls, however the thicknesses of several walls in the drawings labeled as CMU on the finish plan are shown to be different.
Can a version of the floor plan be provided showing the various wall types for existing areas, so can it be determined for the new walls segments what wall thickness is to be used?
Answer #30: The CMU walls in the classroom wing are 8”
Item #31: I cannot seem to find where the fiber locations are on this map. Fiber states it must be outdoor rated but I cannot find location points.
Answer #31: The existing main fiber comes into room 123A, Mechanical room. Run fiber from this room to room 113
Comms Closet and terminate to new equipment provided by contractor. Connect all existing and new data lines to this equipment.
Item #32: If the fiber is going outside, is there a direct burial conduit installed or is that somewhere in the scope I did not see?
Answer #32: There is no fiber going outside to be provided.
Item #33: Copper cat6 Plenum does not have a brand specified but the fiber and all other materials are very strict, curious if this is missed or exactly what happened?
Answer #33: No brand is specified. Must meet specifications.
Item #34: Everything must be certified but there were no specifications of a warranty here? Seems like a warranty would be wanted, what would you recommend?
Answer #34: Everything has a minimum of a one year material and workmanship warranty. Some items may have a longer warranty. See specific specification sections for more information.
Item #35: Are there any detail drawings or specs on the new DDC enclosures? Size, enclosure manufacturer, recessed or surface mount, etc.?
Answer #35: See drawing sheet M9.0 for information.
Item #36: Who is handling the install/ tie-in of the BMS system?
Answer #36: The contractor is responsible for this.
Item #37: Understanding that the Electrical Contractor is responsible for the boxes and raceways, who is handling the install of the Security system wiring, cabling, and devices?
Answer #37: The electrical contractor is responsible for the security system infrastructure, i.e. boxes and raceways, etc.
The owner will install the security system wiring, cabling, and devices.
Item #38: The job specs note that MC Cable "SHALL NOT" be used on this project. What type of lighting fixture whips would be acceptable? SO Cord?
Answer #38: Fixture whips not exceeding 72” in length are allowed. Fixture whips shall be FMC raceway and shall connect on lighting fixture to a local junction box. Fixture-to-fixture connections are not allowed.
Raceways between junction boxes above the suspended ceiling shall be properly supported EMT
Item #39: On the "Lighting Pole with Base" Detail, it shows that the ground rod shall be 3/4" x 40'. Is the 40' length a true measurement, or is it a misprint? If it is a misprint, what is the length actually needed?
Answer #39: A 10’ ground rod can be used.
Item #40: New electrical panel LP-J. The panel board schedule indicates that the new panel shall be a QMB fusible panel. Square D no longer offers QMB fusible panel boards. Would an I-Line distribution class breaker style panelboard be acceptable? If so, what is prefered: fixed trip thermal mag breakers, or adjustable trip electronic breakers?
Answer #40: I-line distribution class breaker style panelboard is acceptable with thermal magnetic breakers.
Item #41: 270 days seems very quick to finish the parking lot seems difficult when we are starting at the beginning of fall. Is there a chance for more time for the exterior?
Answer #41: Contract length will not change.
Item #42: The specifications call for sheet carpet, however the basis of design listed is a tile carpet. Is the tile carpet correct?
Answer #42: Follow specifications.
Item #43: Is landscaping to be included as part of Alternate 2?
Answer #43: Landscaping is part of Alternate 2.
Item #44: Is a BFS Permit required to be carried by the Contractor? If so, for what portion of the work?
Answer #44: Contractor is responsible for all permits. Fire alarm is part of this contract.
Item #45: Clarify portable loading ramp.
Answer #45: Provide a Cadillac Fabrication: Ramp S-10012845-L-CL-HP or an approved equivalent.
Item #46: Can you clarify if the asphalt cross section is 2" of 13A surface & 2" of 13A Base course?
Answer #46: That is correct.
Item #47: Could you provide the height measurement to the bottom of the existing trusses? If the caged storage does not need to reach the bottom of the trusses, what would be the required height for these? The caging mentions going to the bottom of the trusses, but doesn't give an exact elevation - do we have one?
Answer #47: The bottom of the existing trusses is approximately 13’-0” above finished floor. As per the documents, there can be gaps greater than 3” in the caging
Item #48: I am reaching out to request some clarification regarding the wire mesh installation. I see that the wire mesh needs to extend up to the bottom of the existing trusses. Could you please confirm if this requirement applies solely to the caging on top of the vault and office 120A? Or is this applicable for all of the caged storage in this area?
Answer #48: All locations of caging are to be to the underside of the existing trusses.
Item #49: Sheet A2.1 shows a partition type G that seems to indicate exterior masonry being affected by several wall infills. This masonry work is not show on the exterior elevations (sheet A3.0). Can this work be shown on sheet A3.0?
Answer #49: Yes, see revised exterior elevations for locations of masonry & brick infill
Item #50: There isn't a staffing requirements section for the specifications which may indicated requirements for
SSHOs, Superintendents, Quality Control Manger - are there any requirements for these positions that are dictated by the owner / client, or are these staffing positions based solely on the contractor's best judgement?
Answer #50: In the General Conditions there’s a paragraph on how a Superintendent employed by the General Contractor is to be onsite any time workers are onsite. There’s also mention how, as part of the post-bid process, a superintendent must be identified and their resume included.
Item #51: Section 114000 specs only call for a coffee maker, ice maker, and water filter system. I don’t see those indicated on any of the plans. Do you have a plan that shows where these are being installed or quantities required?
Answer #51: Please see revised sheet A1.0 for additional kitchen equipment information. There is to be one of each:
coffee maker, ice maker & water filter for the ice maker.
Item #52: Kitchen notes do not say if the current systems are up to code, or if they should be brought to code, just modified for the revised layout. Do we know the state of the existing equipment? Is it functional and just needs general maintenance or does it require further repairs?
Answer #52: This facility is new to the DMVA; we’re taking ownership of it from the Army Reserve so we don’t have much information about the current kitchen systems though a mandatory walk through was provided so there was an opportunity to review the equipment. That being said, DMVA is providing historic kitchen equipment information from the last known renovation that took place around 1986. The items being removed as part of this project are shown as items #9 (dishwasher), #23 (fryer) & #27 (peeler) on the historic drawings and are being provided for the contractors use. The contractor should assume the hood’s ANSUL system needs to be updated to adjust for the fryer being removed and that both the ANSUL and hood are operating per code upon completion of the project.
Item #53: Drawing A1.0 indicates that the existing exhaust hood and Ansul system are to be serviced/modified to ensure proper operation. Is there information about the existing hood type or fire system type for us to be able to assess the existing equipment for quoting necessary updates?
Answer #53: DMVA requests that the contractor include a $10k line item allowance for both the cleaning of existing kitchen equipment and the cleaning / maintenance / adjustment to the existing hood and ANSUL system.
The contractor should assume the hood’s ANSUL system needs to be updated to adjust for the fryer being removed and that both the ANSUL and hood are operating per code upon completion of the project.
Item #54: Please provide a complete specification as to what is expected by the Food Service Equipment
Contractor. It would appear that an Owner’s consultant is needed to determine the maintenance work that is stated on the drawings and not in the specification. Maybe an allowance for this work would be order.
Answer #54: DMVA requests that the contractor include a $10k line item allowance for both the cleaning of existing kitchen equipment and the cleaning / maintenance / adjustment to the existing hood and ANSUL system.
Item #55: Drawing A1.0 indicates that all kitchen equipment is to be professionally cleaned and serviced. Do we have any documents/photos that assess the current condition of the existing equipment to be able to quote servicing any of it?
Answer #55: Included as part of this addendum is kitchen equipment and stainless steel countertop information from the previous project done in 1986 for the contractors use and review. DMVA requests that the contractor include a $10k line item allowance for both the cleaning of existing kitchen equipment and the cleaning / maintenance / adjustment to the existing hood and ANSUL system.
Item #56: The plans indicate that all floors, walls, and ceilings are to be cleaned. Does the existing kitchen equipment remain or need to be removed? To be able to clean the room?
Answer #56: In order to clean the kitchen it would seem to make sense that the equipment would need to be moved so one could clean below/behind items. Additionally, in order to clean the equipment, one should assume it would need to be moved in order to access all sides of it so yes, the contractor should assume the need to move kitchen equipment as part of cleaning the room and equipment.
Item #57: Drawing A1.0 indicates that a new stainless steel filler is to be installed where the dishwasher is being removed. Are there any photos or dimensions indicating a width and shape of the filler piece going back in? Does it need to be welded in place?
Answer #57: Included as part of this addendum is kitchen equipment and stainless steel countertop information from the previous project done in 1986 for the contractors use and review.
Item #58: Are Abatement bids to be submitted to the General Contractors or on their own?
Answer #58: Abatement bids should be submitted to the General Contractors to be included in their base bids.
Item #59: It would help a great deal if a toilet accessory schedule was listed on the drawings. We are not sure that all toilet accessories are shown on the drawings.
Answer #59: Use the plans and specifications to determine all of the toilet accessories required.
ACKNOWLEDGEMENT: The acknowledgement for this Addendum shall be noted on the Bid-Summary Sheet.
FIRM NAME
Jon Jorgensen Design Manager BIDDER'S SIGNATURE Construction & Facilities Management Office
| FORM BF-1 |
| ADDENDUM NO. 2 |
| Item #53: Drawing A1.0 indicates that the existing exhaust hood and Ansul system are to be serviced/modified to ensure proper operation. Is there information about the existing hood type or fire system type for us to be able to assess the existing equ... |
| Item #59: It would help a great deal if a toilet accessory schedule was listed on the drawings. We are not sure that all toilet accessories are shown on the drawings. |
| FIRM NAME |
| Jon Jorgensen |
| BIDDER'S SIGNATURE Construction & Facilities |
| Management Office |
| 101419 DIMENSIONAL LETTER SIGNAGE 23043.pdf |
| PART 1 - GENERAL |
| 1.1 SUMMARY |
| A. Section Includes: |
| 1. Cutout dimensional characters. |
| 1.2 SUBMITTALS |
| A. Product Data: For each type of product. |
| B. Shop Drawings: For dimensional letter signs. |
| 1. Include fabrication and installation details and attachments to other work. |
| 2. Show sign mounting heights, locations of supplementary supports to be provided by others, and accessories. |
| 3. Show message list, typestyles, graphic elements, and layout for each sign at least half size. |
| C. Samples: For each exposed product and for each color and texture specified. |
| D. Sign Schedule: Use same designations specified or indicated on Drawings or in a sign schedule. |
| E. Sample warranty. |
| F. Maintenance data. |
| 1.3 WARRANTY |
| A. Special Warranty: Manufacturer agrees to repair or replace components of signs that fail in materials or workmanship within specified warranty period. |
| 1. Warranty Period: Five years from date of Substantial Completion. |
| PART 2 - PRODUCTS |
| 2.1 DIMENSIONAL LETTER SIGNS, GENERAL |
| A. Regional Materials: Dimensional letter signs shall be manufactured within 500 miles of Project site. |
| 2.2 PERFORMANCE REQUIREMENTS |
| A. Thermal Movements: For exterior fabricated channel dimensional characters, allow for thermal movements from ambient and surface temperature changes. |
| 1. Temperature Change: 120 deg F, ambient; 180 deg F, material surfaces. |
| 2.3 DIMENSIONAL CHARACTERS |
| A. Fabricated Channel Characters: Metal face and side returns formed free from warp and distortion; with uniform faces, sharp corners, and precisely formed lines and profiles; internally braced for stability and for securing fasteners; and as follows. |
| 1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following: |
| a. A.R.K. Ramos. |
| b. ACE Sign Systems, Inc. |
| c. Allen Industries Architectural Signage. |
| d. APCO Graphics, Inc. |
| e. ASI Sign Systems, Inc. |
| f. Charleston Industries, Inc. |
| g. Cosco. |
| h. Gemini Incorporated. |
| i. Metallic Arts. |
| j. Signs & Decal Corp. |
| k. Steel Art Company. |
| 2. Character Material: Plate aluminum. |
| 3. Character Height: As indicated. |
| 4. Character Depth: As indicated. |
| 5. Finishes: |
| a. Baked-Enamel or Powder-Coat Finish: Manufacturer's standard, in color as selected by Architect from manufacturer's full range. |
| 6. Mounting: Projecting studs. |
| a. Hold characters at 1/4-inch distance from wall surface. |
| 2.4 DIMENSIONAL CHARACTER MATERIALS |
| A. Coated Aluminum Plate. |
| 2.5 ACCESSORIES |
| A. Fasteners and Anchors: Manufacturer's standard as required for secure anchorage of signage, noncorrosive and compatible with each material joined, and complying with the following: |
| 1. Use concealed fasteners and anchors unless indicated to be exposed. |
| 2. For exterior exposure, furnish stainless-steel or hot-dip galvanized devices unless otherwise indicated. |
| 3. Sign Mounting Fasteners: |
| a. Concealed Studs: Concealed (blind), threaded studs welded or brazed to back of sign material, screwed into back of sign assembly, or screwed into tapped lugs cast integrally into back of cast sign material, unless otherwise indicated. |
| b. Projecting Studs: Threaded studs with sleeve spacer, welded or brazed to back of sign material, screwed into back of sign assembly, or screwed into tapped lugs cast integrally into back of cast sign material, unless otherwise indicated. |
B. Bituminous Paint: Cold-applied asphalt emulsion complying with ASTM D 1187.
| 2.6 FABRICATION |
| A. General: Provide manufacturer's standard sign assemblies according to requirements indicated. |
| 1. Mill joints to a tight, hairline fit. Form assemblies and joints exposed to weather to resist water penetration and retention. |
| 2. Provide welds and brazes behind finished surfaces without distorting or discoloring exposed side. Clean exposed welded and brazed connections of flux, and dress exposed and contact surfaces. |
| 3. Conceal connections if possible; otherwise, locate connections where they are inconspicuous. |
| 4. Internally brace signs for stability and for securing fasteners. |
| 5. Provide rebates, lugs, and brackets necessary to assemble components and to attach to existing work. Drill and tap for required fasteners. Use concealed fasteners where possible; use exposed fasteners that match sign finish. |
| 6. Castings: Fabricate castings free of warp, cracks, blowholes, pits, scale, sand holes, and other defects that impair appearance or strength. Grind, wire brush, sandblast, and buff castings to remove seams, gate marks, casting flash, and other casti... |
| B. Brackets: Fabricate brackets, fittings, and hardware for bracket-mounted signs to suit sign construction and mounting conditions indicated. Modify manufacturer's standard brackets as required. |
| 1. Aluminum Brackets: Factory finish brackets with baked-enamel or powder-coat finish to match Architect's sample color unless otherwise indicated. |
| PART 3 - EXECUTION |
| 3.1 INSTALLATION |
| A. General: Install signs using mounting methods indicated and according to manufacturer's written instructions. |
| 1. Install signs level, plumb, true to line, and at locations and heights indicated, with sign surfaces free of distortion and other defects in appearance. |
| 2. Before installation, verify that sign surfaces are clean and free of materials or debris that would impair installation. |
| 3. Corrosion Protection: Coat concealed surfaces of exterior aluminum in contact with grout, concrete, masonry, wood, or dissimilar metals, with a heavy coat of bituminous paint. |
| B. Mounting Methods: |
| 1. Concealed Studs: Using a template, drill holes in substrate aligning with studs on back of sign. Remove loose debris from hole and substrate surface. |
| a. Masonry Substrates: Fill holes with adhesive. Leave recess space in hole for displaced adhesive. Place sign in position and push until flush to surface, embedding studs in holes. Temporarily support sign in position until adhesive fully sets. |
| b. Thin or Hollow Surfaces: Place sign in position and flush to surface, install washers and nuts on studs projecting through opposite side of surface, and tighten. |
| 2. Projecting Studs: Using a template, drill holes in substrate aligning with studs on back of sign. Remove loose debris from hole and substrate surface. |
| a. Masonry Substrates: Fill holes with adhesive. Leave recess space in hole for displaced adhesive. Place spacers on studs, place sign in position, and push until spacers are pinched between sign and substrate, embedding the stud ends in holes. Tempor... |
| b. Thin or Hollow Surfaces: Place spacers on studs, place sign in position with spacers pinched between sign and substrate, and install washers and nuts on stud ends projecting through opposite side of surface, and tighten. |
C. Remove temporary protective coverings and strippable films as signs are installed.
| 042200 CONCRETE UNIT MASONRY 23043.pdf |
| PART 1 - GENERAL |
| 1.1 SUMMARY |
| A. Section Includes: |
| 1. Concrete masonry units. |
| 2. Mortar and grout. |
| 3. Steel reinforcing bars. |
| 4. Masonry-joint reinforcement. |
| 5. Embedded flashing. |
| 6. Miscellaneous masonry accessories. |
| 1.2 SUBMITTALS |
| A. Product Data: For each type of product. |
| B. Samples for Initial Selection: |
| 1. Decorative CMUs, in the form of small-scale units. |
| 2. Colored mortar. |
| 3. Weep holes/vents. |
| C. Material Certificates: For each type and size of the following: |
| 1. Masonry units – Include data on material properties. |
| 2. Integral water repellant used in CMUs. |
| 3. Reinforcing bars. |
| 4. Joint reinforcement. |
| 5. Anchors, ties, and metal accessories. |
D. Mix Designs: For each type of mortar and grout. Include description of type and proportions of ingredients.
| 1.3 QUALITY ASSURANCE |
| A. Sample Panels: Build sample panels to verify selections made under Sample submittals and to demonstrate aesthetic effects. |
| 1. Build sample panels for typical exterior wall in sizes approximately 48 inches long by 48 inches high by full thickness. Mockup may be used in construction only with the approval of the Owner’s Representative. |
| 2. Approval of sample panels is for color, texture, and blending of masonry units; relationship of mortar and sealant colors to masonry unit colors; tooling of joints; aesthetic qualities of workmanship; and other material and construction qualities s... |
| 1.4 DELIVERY, STORAGE, AND HANDLING |
| A. Store masonry units on elevated platforms in a dry location. If units are not stored in an enclosed location, cover tops and sides of stacks with waterproof sheeting, securely tied. If units become wet, do not install until they are dry. |
| B. Store cementitious materials on elevated platforms, under cover, and in a dry location. Do not use cementitious materials that have become damp. |
| C. Store aggregates where grading and other required characteristics can be maintained and contamination avoided. |
| D. Deliver preblended, dry mortar mix in moisture-resistant containers. Store preblended, dry mortar mix in delivery containers on elevated platforms in a dry location or in covered weatherproof dispensing silos. |
| E. Store masonry accessories, including metal items, to prevent corrosion and accumulation of dirt and oil. |
| 1.5 FIELD CONDITIONS |
| A. Protection of Masonry: During construction, cover tops of walls, projections, and sills with waterproof sheeting at end of each day's work. Cover partially completed masonry when construction is not in progress. |
| B. Do not apply uniform floor or roof loads for at least 12 hours and concentrated loads for at least three days after building masonry walls or columns. |
| C. Stain Prevention: Prevent grout, mortar, and soil from staining the face of masonry to be left exposed or painted. Immediately remove grout, mortar, and soil that come in contact with such masonry. |
| 1. Protect base of walls from rain-splashed mud and from mortar splatter by spreading coverings on ground and over wall surface. |
| 2. Protect sills, ledges, and projections from mortar droppings. |
| 3. Protect surfaces of window and door frames, as well as similar products with painted and integral finishes, from mortar droppings. |
| 4. Turn scaffold boards near the wall on edge at the end of each day to prevent rain from splashing mortar and dirt onto completed masonry. |
| D. Cold-Weather Requirements: Do not use frozen materials or materials mixed or coated with ice or frost. Do not build on frozen substrates. Remove and replace unit masonry damaged by frost or by freezing conditions. Comply with cold-weather construct... |
| 1. Cold-Weather Cleaning: Use liquid cleaning methods only when air temperature is 40 deg F and higher and will remain so until masonry has dried, but not less than seven days after completing cleaning. |
E. Hot-Weather Requirements: Comply with hot-weather construction requirements contained in TMS 602/ACI 530.1/ASCE 6.
| PART 2 - PRODUCTS |
| 2.1 MANUFACTURERS |
| A. Source Limitations for Masonry Units: Obtain exposed masonry units of a uniform texture and color, or a uniform blend within the ranges accepted for these characteristics, from single source from single manufacturer for each product required. |
| B. Source Limitations for Mortar Materials: Obtain mortar ingredients of a uniform quality, including color for exposed masonry, from single manufacturer for each cementitious component and from single source or producer for each aggregate. |
| 2.2 UNIT MASONRY, GENERAL |
| A. Masonry Standard: Comply with TMS 602/ACI 530.1/ASCE 6 except as modified by requirements in the Contract Documents. |
| B. Defective Units: Referenced masonry unit standards may allow a certain percentage of units to contain chips, cracks, or other defects exceeding limits stated. Do not use units where such defects are exposed in the completed Work. |
| C. Fire-Resistance Ratings: Comply with requirements for fire-resistance-rated assembly designs indicated. |
| 1. Where fire-resistance-rated construction is indicated, units shall be listed and labeled by a qualified testing agency, by equivalent masonry thickness, or by other means, as acceptable to authorities having jurisdiction. |
| 2.3 CONCRETE MASONRY UNITS |
| A. Shapes: Provide shapes indicated and as follows, with exposed surfaces matching exposed faces of adjacent units unless otherwise indicated. |
| 1. Provide special shapes for lintels, corners, jambs, sashes, movement joints, headers, bonding, and other special conditions. |
| 2. Provide bullnose units for outside corners unless otherwise indicated. |
| B. Integral Water Repellent: Provide units made with integral water repellent for exposed units and where indicated. |
| 1. Integral Water Repellent: Liquid polymeric, integral water-repellent admixture that does not reduce flexural bond strength. Units made with integral water repellent, when tested according to ASTM E 514 as a wall assembly made with mortar containing... |
| a. Available Products: |
| 1) Addiment Incorporated; Block Plus W-10. |
| 2) Grace Construction Products, a unit of W. R. Grace & Co.; Dry-Block System. |
| 3) Master Builders Solutions, BASF; MasterPel 240. |
| C. CMUs: ASTM C 90. |
| 1. Density Classification: Normal weight. |
| 2. Size (Width): Manufactured to dimensions 3/8 inch less-than-nominal dimensions. |
| 3. Exposed Faces: Provide color and texture matching the range represented by Architect’s sample. |
| D. Concrete Building Brick: ASTM C 55. |
| 1. Density Classification: Normal weight. |
| E. Decorative CMUs: ASTM C 90. |
| 1. Density Classification: Normal weight. |
| 2. Size (Width): Manufactured to dimensions specified in "CMUs" Paragraph. |
| 3. Pattern and Texture: Match Architect’s sample. |
| a. Standard pattern, split-face finish. |
4. Colors: Match Architect's samples.
| 2.4 CONCRETE AND MASONRY LINTELS |
| A. General: Provide one of the following: |
| B. Concrete Lintels: ASTM C 1623, matching CMUs in color, texture, and density classification; and with reinforcing bars indicated. |
| C. Masonry Lintels: Prefabricated or built-in-place masonry lintels made from bond beam CMUs matching adjacent CMUs in color, texture, and density classification, with reinforcing bars placed as indicated and filled with coarse grout. Cure precast lin... |
| 2.5 MORTAR AND GROUT MATERIALS |
| A. Portland Cement: ASTM C 150, Type I or II, except Type III may be used for cold-weather construction. Provide natural color or white cement as required to produce mortar color indicated. |
| B. Hydrated Lime: ASTM C 207, Type S. |
| C. Portland Cement-Lime Mix: Packaged blend of portland cement and hydrated lime containing no other ingredients. |
| D. Mortar Pigments: Natural and synthetic iron oxides and chromium oxides, compounded for use in mortar mixes and complying with ASTM C 979. Use only pigments with a record of satisfactory performance in masonry mortar. |
| E. Aggregate for Mortar: ASTM C 144. |
| 1. For mortar that is exposed to view, use washed aggregate consisting of natural sand or crushed stone. |
| 2. For joints less than 1/4 inch thick, use aggregate graded with 100 percent passing the No. 16 sieve. |
| F. Aggregate for Grout: ASTM C 404. |
| G. Water-Repellent Admixture: Liquid water-repellent mortar admixture intended for use with CMUs containing integral water repellent from same manufacturer. |
| H. Water: Potable. |
| 2.6 REINFORCEMENT |
| A. Uncoated Steel Reinforcing Bars: ASTM A 615 or ASTM A 996, Grade 60. |
| B. Reinforcing Bar Positioners: Wire units designed to fit into mortar bed joints spanning masonry unit cells and to hold reinforcing bars in center of cells. Units are formed from 0.148-inch steel wire, hot-dip galvanized after fabrication. Provide u... |
| 1. Available Products: |
| a. Heckman Building Products Inc.; No. 376 Rebar Positioner. |
| b. Hohmann & Barnard, Inc.; RB or RB Twin Rebar Positioner. |
| c. Wire-Bond; Figure 8 Rebar Positioners. |
| C. Masonry-Joint Reinforcement, General: Ladder type complying with ASTM A 951. |
| 1. Interior Walls: Mill-galvanized carbon steel. |
| 2. Exterior Walls: Hot-dip galvanized carbon steel. |
| 3. Wire Size for Side Rods: 0.187-inch diameter. |
| 4. Wire Size for Cross Rods: 0.187-inch diameter. |
| 5. Wire Size for Veneer Ties: 0.187-inch diameter. |
| 6. Spacing of Cross Rods, Tabs, and Cross Ties: Not more than 16 inches o.c. |
| 7. Provide in lengths of not less than 10 feet, with prefabricated corner and tee units. |
| 8. Single-Wythe Masonry: Ladder type with single pair of side rods. |
| 9. Multi-Wythe Masonry: Ladder type with one side rod at each face shell of hollow masonry units more than 4” in width, plus one side rod at each wythe of masonry 4” or less in width. |
| 2.7 TIES AND ANCHORS |
| A. General: Ties and anchors shall extend at least 1-1/2 inches into masonry but with at least a 5/8-inch cover on outside face. |
| B. Materials: Provide ties and anchors specified in this article that are made from materials that comply with the following unless otherwise indicated: |
| 1. Hot-Dip Galvanized, Carbon-Steel Wire: ASTM A 82, with ASTM A 153, Class B-2 coating. |
| C. Partition Top Anchors: 0.105-inch- thick metal plate with a 3/8-inch-diameter metal rod 6 inches long welded to plate and with closed-end plastic tube fitted over rod that allows rod to move in and out of tube. Fabricate from steel, hot-dip galvani... |
| D. Anchor Bolts: Headed or L-shaped steel bolts complying with ASTM A 307, Grade A; with ASTM A 563 hex nuts and, where indicated, flat washers; hot-dip galvanized to comply with ASTM A 153, Class C; of dimensions indicated. |
| E. Veneer Anchors: |
| 1. Tie section: Triangular-shaped wire tie, sized to accommodate 2” rigid insulation and extend within 1 inch of masonry face, made as detailed from 0.187-inch-diameter, hot-dip galvanized steel wire. |
| a. Available Manufacturer or an approved equal: Wire-Bond; MasonPro ABV3035. |
| 2. Concrete/CMU Expansion Pins. |
| a. Available Manufacturer or an approved equal: Powers; Zamac Hammer Screw. |
| 2.8 EMBEDDED FLASHING MATERIALS |
| A. Flexible Flashing: Use the following unless otherwise indicated: |
| 1. Copper-Laminated Flashing: 7-oz./sq. ft. copper sheet bonded between two layers of glass-fiber cloth. Use only where flashing is fully concealed in masonry. |
B. Adhesives, Primers, and Seam Tapes for Flashings: Flashing manufacturer's standard products or products recommended by flashing manufacturer for bonding flashing sheets to each other and to substrates.
| 2.9 MISCELLANEOUS MASONRY ACCESSORIES |
| A. Compressible Filler: Premolded filler strips complying with ASTM D 1056, Grade 2A1; compressible up to 35 percent; of width and thickness indicated; formulated from neoprene, urethane, or PVC. |
| B. Preformed Control-Joint Gaskets: Made from styrene-butadiene-rubber compound, complying with ASTM D 2000, Designation M2AA-805 or PVC, complying with ASTM D 2287, Type PVC-65406 and designed to fit standard sash block and to maintain lateral stabil... |
| C. Bond-Breaker Strips: Asphalt-saturated felt complying with ASTM D 226, Type I (No. 15 asphalt felt). |
| D. Weep/Vent Products: Use the following unless otherwise indicated/ |
| 1. Mesh Weep/Vent: Free-draining mesh; made from polyethylene strands, full height and width of head joint and depth 1/8-inch less than depth of outer wythe; in color selected from manufacturer’s standard. |
| 2. Drainage Media: Mortar Net Solutions; MortarNet 1” by 10” tall width. |
| 2.10 MORTAR AND GROUT MIXES |
| A. General: Do not use admixtures, including pigments, air-entraining agents, accelerators, retarders, water-repellent agents, antifreeze compounds, or other admixtures unless otherwise indicated. |
| 1. Do not use calcium chloride in mortar or grout. |
| 2. Use portland cement-lime mortar unless otherwise indicated. |
| B. Mortar for Unit Masonry: Comply with ASTM C 270, Proportion Specification. Provide the following types of mortar for applications stated unless another type is indicated. |
| 1. For masonry below grade or in contact with earth, use Type S. |
| 2. For exterior, above-grade, load-bearing and nonload-bearing walls and parapet walls; for interior load-bearing walls; for interior nonload-bearing partitions; and for other applications where another type is not indicated, use Type N. |
| C. Pigmented Mortar: Use colored cement product or select and proportion pigments with other ingredients to produce color required. Do not add pigments to colored cement products. |
| 1. Pigments shall not exceed 10 percent of portland cement by weight. |
| 2. Mix to match Architect's sample. |
| 3. Application: Use pigmented mortar for exposed mortar joints with the following units: |
| a. Decorative CMUs. |
| D. Grout for Unit Masonry: Comply with ASTM C 476. |
| 1. Use grout of type indicated or, if not otherwise indicated, of type (fine or coarse) that will comply with TMS 602/ACI 530.1/ASCE 6 for dimensions of grout spaces and pour height. |
| 2. Proportion grout in accordance with ASTM C 476, Table 1. |
| 3. Provide grout with a slump of 8 to 11 inches as measured according to ASTM C 143. |
| PART 3 - EXECUTION |
| 3.1 EXAMINATION |
| A. Examine conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of the Work. |
| 1. For the record, prepare written report, endorsed by Installer, listing conditions detrimental to performance of the Work. |
| 2. Verify that foundations are within tolerances specified. |
| 3. Verify that reinforcing dowels are properly placed. |
| B. Before installation, examine rough-in and built-in construction for piping systems to verify actual locations of piping. |
| C. Proceed with installation only after unsatisfactory conditions have been corrected. |
| 3.2 INSTALLATION, GENERAL |
| A. Do not wet concrete masonry units. |
| B. Cleaning Reinforcing: Before placing, remove loose rust, ice and other coatings from reinforcing. |
| C. Build chases and recesses to accommodate items specified in this and other Sections. |
| D. Leave openings for equipment to be installed before completing masonry. After installing equipment, complete masonry to match construction immediately adjacent to opening. |
| E. Use full-size units without cutting if possible. If cutting is required to provide a continuous pattern or to fit adjoining construction, cut units with motor-driven saws; provide clean, sharp, unchipped edges. Allow units to dry before laying unle... |
| 3.3 TOLERANCES |
| A. Dimensions and Locations of Elements: |
| 1. For dimensions in cross section or elevation, do not vary by more than plus 1/2 inch or minus 1/4 inch. |
| 2. For location of elements in plan, do not vary from that indicated by more than plus or minus 1/2 inch. |
| 3. For location of elements in elevation, do not vary from that indicated by more than plus or minus 1/4 inch in a story height or 1/2 inch total. |
| B. Lines and Levels: |
| 1. For bed joints and top surfaces of bearing walls, do not vary from level by more than 1/4 inch in 10 feet, or 1/2-inch maximum. |
| 2. For conspicuous horizontal lines, such as lintels, sills, parapets, and reveals, do not vary from level by more than 1/8 inch in 10 feet, 1/4 inch in 20 feet, or 1/2-inch maximum. |
| 3. For vertical lines and surfaces do not vary from plumb by more than 1/4 inch in 10 feet, 3/8 inch in 20 feet, or 1/2-inch maximum. |
| 4. For conspicuous vertical lines, such as external corners, door jambs, reveals, and expansion and control joints, do not vary from plumb by more than 1/8 inch in 10 feet, 1/4 inch in 20 feet, or 1/2-inch maximum. |
| 5. For lines and surfaces, do not vary from straight by more than 1/4 inch in 10 feet, 3/8 inch in 20 feet, or 1/2-inch maximum. |
| 6. For faces of adjacent exposed masonry units, do not vary from flush alignment by more than 1/16 inch. |
| C. Joints: |
| 1. For bed joints, do not vary from thickness indicated by more than plus or minus 1/8 inch, with a maximum thickness limited to 1/2 inch. |
| 2. For exposed bed joints, do not vary from bed-joint thickness of adjacent courses by more than 1/8 inch. |
| 3. For head and collar joints, do not vary from thickness indicated by more than plus 3/8 inch or minus 1/4 inch. |
| 4. For exposed head joints, do not vary from thickness indicated by more than plus or minus 1/8 inch. |
| 3.4 LAYING MASONRY WALLS |
| A. Lay out walls in advance for accurate spacing of surface bond patterns with uniform joint thicknesses and for accurate location of openings, movement-type joints, returns, and offsets. Avoid using less-than-half-size units, particularly at corners,... |
| B. Bond Pattern for Exposed Masonry: Unless otherwise indicated, lay exposed masonry in running bond; do not use units with less-than-nominal 4-inch horizontal face dimensions at corners or jambs. |
| C. Stopping and Resuming Work: Stop work by stepping back units in each course from those in course below; do not tooth. When resuming work, clean masonry surfaces that are to receive mortar, remove loose masonry units and mortar, and wet brick if req... |
| D. Built-in Work: As construction progresses, build in items specified in this and other Sections. Fill in solidly with masonry around built-in items. |
| E. Fill space between steel frames and masonry solidly with mortar unless otherwise indicated. |
| F. Where built-in items are to be embedded in cores of hollow masonry units, place a layer of metal lath, wire mesh, or plastic mesh in the joint below, and rod mortar or grout into core. |
| G. Fill cores in hollow CMUs with grout 24 inches under bearing plates, beams, lintels, posts, and similar items unless otherwise indicated. |
| 3.5 MORTAR BEDDING AND JOINTING |
| A. Lay hollow CMUs as follows: |
| 1. Bed face shells in mortar and make head joints of depth equal to bed joints. |
| 2. Bed webs in mortar in all courses of piers, columns, and pilasters. |
| 3. Bed webs in mortar in grouted masonry, including starting course on footings. |
| 4. Fully bed entire units, including areas under cells, at starting course on footings where cells are not grouted. |
| B. Lay solid CMUs with completely filled bed and head joints; butter ends with sufficient mortar to fill head joints and shove into place. Do not deeply furrow bed joints or slush head joints. |
| C. Tool exposed joints slightly concave when thumbprint hard, using a jointer larger than joint thickness unless otherwise indicated. |
| D. Cut joints flush where indicated to receive waterproofing unless otherwise indicated. |
| 3.6 MASONRY-JOINT REINFORCEMENT |
| A. General: Install entire length of longitudinal side rods in mortar with a minimum cover of 5/8 inch on exterior side of walls, 1/2 inch elsewhere. Lap reinforcement a minimum of 6 inches. |
| 1. Space reinforcement not more than 16 inches o.c. |
| 2. Provide reinforcement not more than 8 inches above and below wall openings and extending 12 inches beyond openings. |
| B. Interrupt joint reinforcement at control and expansion joints unless otherwise indicated. |
| C. Provide continuity at wall intersections by using prefabricated T-shaped units. |
| D. Provide continuity at corners by using prefabricated L-shaped units. |
| 3.7 ANCHORING MASONRY |
| A. Individual Metal Ties: Provide ties as shown installed in horizontal joints, but not less than one metal tie for 4.5 sq. ft. of wall area spaced not to exceed 24 inches o.c. horizontally and 16 inches o.c. vertically. Stagger ties in alternate cour... |
| 3.8 CAVITY WALLS |
| A. Provide an open space as indicated on DRAWINGS between veneer and existing masonry. |
| B. Apply air barriers to face of backup wythe to comply with Section 072700, AIR BARRIERS. |
| C. Keep cavity clean of mortar droppings and other materials during construction. Strike joints facing cavity flush. |
| D. Provide weep holes in exterior wythe of cavity wall located immediately above ledges and flashing, spaced 16 inches o.c., unless otherwise indicated. |
| 3.9 CAVITY WALL INSULATION |
| A. Place small dabs of adhesive, spaced approximately 12 inches o.c. both ways, on inside face of insulation boards, or attach with plastic fasteners designed for this purpose. Fit courses of insulation between wall ties and other confining obstructio... |
| 3.10 CONTROL AND EXPANSION JOINTS |
| A. General: Install control- and expansion-joint materials in unit masonry as masonry progresses. Do not allow materials to span control and expansion joints without provision to allow for in-plane wall or partition movement. |
| 3.11 LINTELS |
| A. Install steel lintels where indicated. Provide masonry lintels where shown and where openings of more than 12 inches for brick-size units and 24 inches for block-size units are shown without structural steel or other supporting lintels. Provide pr... |
| B. Provide minimum bearing of 8 inches at each jamb unless otherwise indicated. |
| 3.12 FLASHING |
| A. General: Install embedded flashing at ledges and other obstructions to downward flow of water in wall where indicated. |
| B. Install flashing as follows unless otherwise indicated: |
| 1. Prepare masonry surfaces so they are smooth and free from projections that could puncture flashing. Where flashing is within mortar joint, place through-wall flashing on sloping bed of mortar and cover with mortar. Before covering with mortar, seal... |
| 2. At lintels, extend flashing a minimum of 6 inches into masonry at each end. At heads and sills, extend flashing 6 inches at ends and turn up not less than 2 inches to form end dams. |
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