BR549_Kodiak_Siding_Manual_FINAL_130704.pdf

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Siding Standards Base Kodiak Project # BR549

ADDENDUM

Table of Contents

1415 Western Ave, Suite 418 | Seattle, WA 98101-2051 | Ph 206 682 2857 ECH Architecture | www.ech-ps.com | 1

1.0 SIDING PROTOCOLS

2.0 DRAWINGS

A1.01 General Information A1.02 Abbreviations A1.1A Exterior Elevation w/ Rainscreen A1.1B Exterior Elevation w/ Added Insulation & Rainscreen A1.1C Exterior Elevation w/ Continuous Insulation & Rainscreen A1.2A Exterior Elevation w/ Rainscreen A1.2B Exterior Elevation w/ Added Insulation & Rainscreen A1.2C Exterior Elevation w/ Continuous Insulation & Rainscreen A1.3A Wall Section w/ Rainscreen (Existing Building Retrofit) A1.3B Wall Section w/ Added Insulation & Rainscreen (Existing Building Retrofit) A1.3C Wall Section w/ Continuous Insulation & Rainscreen (New or Existing Building) D1.1A Roof Rake D1.1B Roof Rake at Rigid Insulation D1.1C Roof Rake at Continuous Insulation D1.2A Shed Ridge to Wall Junction D1.2B Shed Ridge to Wall Junction at Rigid Insulation D1.2C Shed Ridge to Wall Junction at Continuous Insulation D1.3A Shed Roof to Wall Junction D1.3B Shed Roof to Wall Junction at Rigid Insulation D1.3C Shed Roof to Wall Junction at Continuous Insulation D1.4A Roof to Wall Junction D1.4B Roof to Wall Junction at Rigid Insulation D1.4C Roof to Wall Junction at Continuous Insulation D1.5 Kickout Flashing & Trim Isometric D1.6 Eave D2.1A Siding at Soffit D2.1B Siding at Soffit w/ Rigid Insulation D2.1C Siding at Soffit w/ Continuous Insulation D2.2A Band Board D2.2B Band board w/ Rigid Insulation D2.2C Band board w/ Continuous Insulation D2.3A Inside Corner at Siding D2.3B Inside Corner at Siding w/ Rigid Insulation D2.3C Inside Corner at Siding w/ Continuous Insulation D2.4A Outside Corner at Siding D2.4B Outside Corner at Siding w/ Rigid Insulation D2.4C Outside Corner at Siding w/ Continuous Insulation D2.5A Siding Sill at Wall Base D2.5B Siding Sill at Wall Base w/ Rigid Insulation D2.5C Siding Sill at Wall Base w/ Continuous Insulation D2.6A Siding Sill at Porch D2.6B Siding Sill at Porch w/ Rigid Insulation D2.6C Siding Sill at Porch w/ Continuous Insulation D3.1 Existing Window Head D3.2 Window Flashing Isometric D3.3A Window Head

1415 Western Ave, Suite 418 | Seattle, WA 98101-2051 | Ph 206 682 2857 ECH Architecture | www.ech-ps.com | 2

D3.3B Window Head w/ Rigid Insulation D3.3C Window Head w/ Continuous Insulation D3.4A Window Jamb D3.4B Window Jamb w/ Rigid Insulation D3.4C Window Jamb w/ Continuous Insulation D3.5A Window Sill D3.5B Window Sill w/ Rigid Insulation D3.5C Window Sill w/ Continuous Insulation D3.6 Head Flashing Isometric D4.1A Door Head D4.1B Door Head w/ Rigid Insulation D4.1C Door Head w/ Continuous Insulation D4.2A Door Jamb D4.2B Door Jamb w/ Rigid Insulation D4.2C Door Jamb w/ Continuous Insulation D4.3 Door Sill D5.1A Duct Penetration D5.1B Duct Penetraion w/ Rigid Insulation D5.1C Duct Penetraion w/ Continuous Insulation D5.2A Pipe Penetration D5.2B Pipe Penetration w/ Rigid Insulation D5.2C Pipe Penetration w/ Continuous Insulation D6.1C Furring Attachment over Continuous Insulation

3.0 REFERENCE SPECIFICATIONS

DIVISION 6 – WOOD & PLASTICS

06 10 00 Rough Carpentry 06 20 00 Finish Carpentry 06 60 00 Plastic Fabrications

DIVISION 7 – THERMAL AND MOISTURE PROTECTION

07 21 13 Board and Block Insulation 07 21 16 Mineral Fiber Blanket Insulation 07 25 00 Weather Barriers 07 30 00 Steep Slope Roofing 07 46 46 Fiber-Cement Siding 07 60 00 Flashing and Sheet Metal 07 92 00 Joint Sealants

DIVISION 8 – OPENINGS

08 53 13 Vinyl Windows

DIVISION 9 – FINISHES

09 29 00 Gypsum Board 09 90 00 Paints and Coatings

PROJECT NO. BR549

1.0 SIDING PROTOCOLS

PROJECT NO. BR549 1 Siding Protocols

1.0 BASE KODIAK SIDING PROTOCOLS

A. Planning Considerations:

The following issues need to be examined before proceeding with design.

a. Seismic: Investigate what (if any) information is available regarding seismic provisions for the building, particularly related to the exterior envelope. If it is appropriate to the scope of the project, have a seismic study done to determine if any seismic upgrades are required when the siding is removed.

Objective: Take advantage of sheathing and tie-down opportunities when the siding is replaced.

Note: Adding/replacing sheathing also gives an opportunity for better attachment of the siding.

b. HAZMAT: Determine what (if any) information is available regarding hazardous materials in the materials being removed, materials disturbed, soils, or in the immediate vicinity.

c. Insulation: Replacing the siding is an opportunity to add insulation. Typically, 1 or 1-1/2 inch of rigid insulation is added on the outside of the building. However, careful consideration has to be given to the vapor performance of the existing wall system and to the fastening of the siding, which may require structural furring if rigid insulation is installed at exterior face of walls. See below for more information.

d. Window replacement: If the windows are to be replaced with new, or removed and reinstalled, there are a number of considerations required to integrate the systems. Typically, projects to receive rigid insulation at the outside face of the building should, at a minimum, have windows removed and reinstalled (or replaced) to place window flanges flush with the outside face of insulation and weather-resistive barrier (WRB). Wood furring may be required around windows to facilitate this. Interior returns will need to be extended or replaced if windows are relocated or replaced.

e. Roof /gutter replacement or integration: When siding is replaced, often there are locations where the siding meets a roof, and proper integration of the

PROJECT NO. BR549 2 Siding Protocols siding/flashing/roofing is required to ensure a weathertight envelope. Gutters should almost always be replaced. When doing so, it may be necessary to replace roofing and drip edge at the edge of roofs. Small roofs adjacent to walls receiving new siding are better candidates for replacement than repair, since it may be more efficient to replace all roofing on a small roof than attempting to patch areas along edges.

f. Door replacement: Consider age and integration with new work.

g. Site adjustments: Sidewalks, site drainage and elevation of adjacent lawns, should all be considered.

h. Historic implications: Review any current historic resource management plans for the facility.

i. Attic venting: Consider the attic ventilation system. Are gable end vents, soffit vents or ridge vents needed? If gable end vents are needed, they must be coordinated with siding and trim installation. Soffits must continue to vent after new materials are installed.

B: Technical Considerations:

1. Removal of existing materials:

a. Obtain information or perform sampling of siding, paint and caulking to determine presence of lead or asbestos.

b. Evaluate underlying structure by researching drawings and available corporate knowledge before construction, and what is discovered when existing siding is removed.

c. Identify need for removal of damaged, rotten, or suspect materials. Determine if any exposure(s) have weathered better or worse than others, and possibly address those areas differently in plans for replacement if appropriate. Rot repairs are typically handled as unit price bid items in the construction contract.

d. Establish if there is need for new sheathing/underlayment, or removal of the old materials.

e. Evaluate existing soffits, eaves, and roof interfaces.

PROJECT NO. BR549 3 Siding Protocols

f. Schedule/timing, technique, season/weather constraints, noise, disposal, etc.

2. Evaluation of insulation needs:

a. Determine existence, condition, continuity, and effectiveness of existing insulation. If insulation is wet or damaged, replace.

b. When siding is removed, assess whether additional insulation will be practical to install. Additional insulation is beneficial, regardless of the economic payback.

There may not be another opportunity to add R value to the walls in the building’s lifetime. However, the details required when incorporating additional insulation can be complicated, as portions of the wall system are pushed outward, making detailing around wall penetrations and attachment of siding more challenging.

Fiber cement siding manufacturers such as CertainTeed and James Hardie require their siding be fastened into structure with no more than 1” maximum non-structural material (insulation, rainscreen battens, etc.) between the siding and structure. If insulation over 1/2” in thickness is to be installed in conjunction with rainscreen battens of 1/2” thick or greater, structural wood battens of the same depth as the insulation must be installed at 16” on center in the same plane as the insulation. These wood battens must be fastened into wall framing to provide structural backing for siding installation.

c. Evaluate insulation options, including:

i. Rigid insulation outboard of existing wall cavity

ii. Rigid insulation inboard of existing wall cavity

iii. Batt insulation to replace existing inside wall cavities.

iv. Blown-in insulation

v. Sprayed insulation in existing wall cavity

d. Evaluate condition of existing vapor retarder. That evaluation shall consider any need to replace, relocate, or enhance the vapor retarder. In conjunction with insulation options, provide analysis of possible changes in location of dew point, and recommendations for optimizing the performance of the exterior wall system.

PROJECT NO. BR549 4 Siding Protocols

Additional considerations regarding insulation installation:

- Depth of insulation to be added.

- Type of insulation to be installed.

- Condition of the interior vapor barrier.

- Trim, flashing and sealant configuration required to account for additional wall thickness

- Window relocation within wall (if moving windows outward) or replacement.

3. Installation of new siding:

a. New siding shall be a fiber cement product.

Refer to the USCG Base Kodiak Siding Standards drawings attached for guidelines regarding siding installation. Reference specifications are attached as well for further guidelines regarding products and installation.

Consider available brands, warranties, attachments, trim, color, width, nailing, interior/exterior corner details, caulking provisions, etc.

b. The area directly behind the siding shall incorporate a “rainscreen”. This creates a drainage plane which shall have a waterproof membrane, creating a secondary barrier for any water which penetrates the siding.

c. Exterior trim shall be man-made materials such as Azek PVC trim or painted metal. Note: If existing gable, eave or rake trim boards are not removed, they should be covered over with prefinished metal flashing as shown on siding standards drawings. The overall goal is to minimize maintenance painting.

Additional considerations regarding siding and materials installation:

- Siding attachment method.

- Fastener spacing to facilitate attachment into studs: In order to meet wind load requirements for the Kodiak area, fiber cement siding products should always be fastened into studs.

- Where no overhangs exist at rake or gable conditions, fascia location must be adjusted to receive and conceal rainscreen system and, where applicable, additional insulation.

- Venting at top of rainscreen: Rainscreen cavities should be ventilated to exterior and never vented into soffit or roof cavities above.

PROJECT NO. BR549 5 Siding Protocols

- Roofing, flashing and and gutter work required to facilitate siding, rainscreen and insulation installation.

- All materials to be installed outboard of weather-resistive barrier are to be man-made materials or pressure preservative treated to prolong lifespan.

- All fasteners exposed to moisture or pressure treated materials are to be stainless steel.

4. Windows and Doors:

a. New windows and doors shall conform to USCG Base Kodiak standards. All new windows to be installed are to be vinyl windows with an R value of 5 or greater.

b. All new doors shall be insulated.

c. All exterior door and window trim/moldings shall be man-made. See attached drawings for more information.

d. All doors and windows to be installed shall be installed with drainage pans below to prevent moisture accumulation and rotting of sills. See drawings for details.

e. Where windows are to be replaced, interior returns and sills are to be replaced to match existing. Where doors or windows are to be replaced, casing or trim at wall may need to be replaced. If so, new casing/trim shall match existing.

f. Where drywall at interior face of walls is damaged or in need of patching due to window or door replacement, entire wall surface shall be painted to match existing adjacent walls. See attached reference specifications for more information.

Additional considerations regarding window and door installation:

- New windows vs. reuse of existing windows.

- Windows or doors may be damaged during removal or installation. Determine unit price for replacement as needed.

- Awning windows are preferable to casements in high wind areas such as Kodiak due to their smaller profile. Awnings are also preferable to double or single hung units because they provide better coverage in inclement weather if left open.

While preferred in many situations, awnings may not be appropriate for some locations, particularly where egress is required. See below

PROJECT NO. BR549 6 Siding Protocols

- Where egress is required by building code, windows need to be sized accordingly.

Window sizes and type should be verified to determine if existing size and type meets egress requirements. Windows may need to be enlarged or replaced with a different type to meet egress. Note: Awning windows may not be appropriate for these locations due to limited clear opening area compared to other window types.

- Door hardware replacement (if replacing doors): Analyze hardware condition, function and appearance and replace as needed.

- Screen door installation where doors are to be replaced: Determine if screens are appropriate and install as desired.

5. Seismic, sheathing and tie down upgrades:

a. New sheathing is often added to improve the shear strength of the existing walls but it also serves the purpose of adding backing to the wall to facilitate attaching other materials more securely.

b. Care must be taken when adding structural straps at floor transitions or other areas. Strapping may create bulges in finishes and potential expansion or contraction of structure may lead to strapping movement and siding damage if not accounted for properly.

Additional considerations regarding structural upgrades:

- Fastener pattern/spacing: Fasteners for structural upgrades must be fastened into existing structural members and spaced according to structural engineer’s specifications.

- Siding, trim and flashing must account for any additional wall thickness that occurs due to installation of structural components.

6. Site Adjustments:

a. The main consideration is to protect new siding and related materials from physical damage due to vehicles, lawn care implements or moisture at grade level.

b. A 12” separation should be maintained wherever possible between siding or trim and adjacent grade. Trim at bottom edge of siding, where applicable, shall be sturdy, moisture resistant material such as Apex or Trex. Stainless steel flashing should be used to transition from the adjacent site to the bottom of new siding.

***End of Base Kodiak Siding Protocols***

2.0 DRAWINGS

3.0 REFERENCE SPECIFICATIONS

PROJECT NO. BR549 06 10 00-1 Rough Carpentry

SECTION 06 10 00

ROUGH CARPENTRY

PART - 1 GENERAL

1.1 OVERVIEW

This Section describes the minimum requirements for all the rough carpentry using wood products.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN FOREST & PAPER ASSOCIATION (AF&PA)

AF&PA T101 (2005) National Design Specification (NDS) for Wood Construction

AMERICAN INSTITUTE OF TIMBER CONSTRUCTION (AITC)

AITC TCM (2004; Errata 2008) Timber Construction Manual, 5th Edition

AMERICAN LUMBER STANDARDS COMMITTEE (ALSC)

ALSC PS 20 (2005) American Softwood Lumber Standard

AMERICAN WOOD PROTECTION ASSOCIATION (AWPA)

AWPA BOOK (2009) AWPA Book of Standards

AWPA M2 (2007) Standard for Inspection of Treated Wood Products

AWPA M6 (2007) Brands Used on Forest Products

AWPA P18 (2007) Nonpressure Preservatives

AWPA P5 (2009) Standard for Waterborne Preservatives

AWPA T1 (2009) Use Category System: Processing and Treatment Standard

AWPA U1 (2009) Use Category System: User Specification for Treated Wood

APA - THE ENGINEERED WOOD ASSOCIATION (APA)

APA PS 1 (1995) Voluntary Product Standard for Construction and Industrial Plywood

APA PS 2 (2004) Voluntary Product Standard for Wood-Based Structural-Use Panels

ASME INTERNATIONAL (ASME)

ASME B18.2.1 (2010) Square and Hex Bolts and Screws (Inch Series)

PROJECT NO. BR549 06 10 00-2 Rough Carpentry

ASME B18.2.2 (2010) Standard for Square and Hex Nuts

ASME B18.6.1 (1981; R 2008) Wood Screws (Inch Series)

ASTM INTERNATIONAL (ASTM)

ASTM A 307 (2007b) Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

ASTM A 653/A 653M (2009a) Standard Specification for Steel Sheet, Zinc- Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM F 1667 (2010) Driven Fasteners: Nails, Spikes, and Staples

ASTM F 547 (2006) Nails for Use with Wood and Wood-Base Materials

INTERNATIONAL CODE COUNCIL (ICC)

ICC IBC (2009) International Building Code

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

CID A-A-1923 (Rev A; Notice 2) Shield, Expansion (Lag, Machine and Externally Threaded Wedge Bolt Anchors)

WEST COAST LUMBER INSPECTION BUREAU (WCLIB)

WCLIB 17 (2000) Standard Grading Rules

WESTERN WOOD PRODUCTS ASSOCIATION (WWPA)

WWPA G-5 (1998) Western Lumber Grading Rules

1.3 DELIVERY AND STORAGE: deliver materials to the site in an undamaged condition.

Store materials off the ground to provide proper ventilation, with drainage to avoid standing water and protection against ground moisture and dampness. Store materials with a moisture barrier at both the ground level and as a cover forming a well ventilated enclosure. Store wood joists on edge. Adhere to requirements for stacking, lifting, bracing, cutting, notching, and special fastening requirements. Remove defective and damaged materials and provide new materials. Store separated reusable wood waste convenient to cutting station and area of work.

1.4 GRADING AND MARKING

1.4.1 Lumber: Mark each piece of framing and board lumber or each bundle of small pieces of lumber with the grade mark of a recognized association or independent inspection agency. Such association or agency shall be certified by the Board of Review, American Lumber Standards Committee, to grade the species used. Surfaces that are to be exposed to view shall not bear grademarks, stamps, or any type of identifying mark. Hammer marking will be permitted on timbers when all surfaces will be exposed to view.

1.4.2 Plywood: Mark each sheet with the mark of a recognized association or independent inspection agency that maintains continuing control over the quality of the plywood. The mark shall identify the plywood by species group or span rating, exposure durability classification, grade, and compliance with APA PS 1.Surfaces that are to be exposed to view shall not bear grademarks or other types of identifying marks.

PROJECT NO. BR549 06 10 00-3 Rough Carpentry

1.4.3 Preservative-Treated Lumber: The Contractor shall be responsible for the quality of treated wood products. Each treated piece shall be inspected in accordance with AWPA M2 and permanently marked or branded, by the producer, in accordance with AWPA M6. The appropriate Quality Mark on each piece will be accepted, in lieu of inspection reports, as evidence of compliance with applicable AWPA treatment standards.

1.5 SIZES AND SURFACING

1.5.1 ALSC PS 20 for dressed sizes of lumber. All lumber shall be surfaced four sides unless noted specifically on the contract plans. Size references, unless otherwise specified, are nominal sizes, and actual sizes shall be within manufacturing tolerances allowed by the standard under which the product is produced.

1.6 MOISTURE CONTENT: air-dry or kiln-dry lumber. Kiln-dry treated lumber after treatment. Maximum moisture content of wood products shall be as follows at the time of delivery to the job site:

1.6.1 Framing lumber and boards - 19 percent maximum

1.6.2 Materials other than lumber - Moisture content shall be in accordance with standard under which the product is produced

1.7 PRESERVATIVE TREATMENT: Treat wood products with waterborne wood preservatives conforming to AWPA P5. Pressure treatment of wood products shall conform to the requirements of AWPA book use category system standards U1 and T1. Pressure-treated wood products shall not contain arsenic, chromium, or other agents classified as carcinogenic, probably carcinogenic, or possibly carcinogenic to humans (compounds in groups 1, 2a, or 2b) by the international agency for research on cancer (iarc), lyon, france. Pressure-treated wood products shall not exceed the limits of the U.S. EPA's toxic characteristic leaching procedure (TELP), and shall not be classified as hazardous waste.

1.7.1 0.25 pcf intended for above ground use.

1.7.2 In addition to items noted on Drawings to be pressure treated, the following items shall be preservative treated, if installed under contract for this project:

1.7.2.1 Wood framing, woodwork, and plywood up to and including the subflooring at the first-floor level of structures having crawl spaces when the bottoms of such items are 24 inches or less from the earth underneath.

1.7.2.2 Wood sills, soles, plates, furring, and sleepers that are less than 24 inches from the ground, furring and nailers that are set into or in contact with concrete.

1.7.2.3 Nailers, edge strips, crickets, curbs, and cants for roof decks or any wood installed outboard of the weather barrier.

1.7.3 Existing Structures: Use borate, permathrin, or a sodium silicate wood mineralization process to treat wood. Use borate for interior applications only.

PROJECT NO. BR549 06 10 00-4 Rough Carpentry

1.7.4 New Construction: Use a boron-based preservative conforming to AWPA P18, sodium silicate wood mineralization process, or Ammoniacal Copper Quaternary Compound to treat wood. Use boron-based preservatives for above-ground applications only.

1.8 ENVIRONMENTAL REQUIREMENTS

1.8.1 During and immediately after installation of treated wood provide temporary ventilation.

PART - 2 PRODUCTS

2.1 MATERIALS

2.1.1 Virgin Lumber

2.1.2 Salvaged Lumber: Use salvaged lumber where practical. Unless otherwise noted, salvaged lumber shall be delivered clean, denailed, and free of paint, finish materials, and other contamination.

2.1.3 Recovered Lumber: Use recovered lumber where practical. Unless otherwise noted, recovered lumber shall be delivered clean and free of contamination. Provide grading certificates for any recovered wood materials used in structural applications.

2.2 LUMBER

2.2.1 Structural lumber for joists, wood columns and beams shall be Douglas Fir Larch or Douglas Fir Larch North. Other stress graded or dimensioned items such as blocking, carriages, and studs shall be standard or No. 2 grade.

2.2.2 Framing lumber such as studs, plates, caps, collar beams, cant strips, bucks, sleepers, nailing strips, and nailers and board lumber such as subflooring and wall and roof sheathing shall be Douglas Fir-Larch #2 or Hem Fir #1 as graded by WWPA-5 or WCLIB–17. Any other grade shall be approved by the Contracting Officer.

2.3 PLYWOOD

2.3.1 APA PS 1, APA PS 2.

2.3.2 Exterior Wall and Roof Sheathing

2.3.2.1 Plywood: Structural I, C-C grade, Exposure 1, thickness as indicated on drawings.

2.4 OTHER MATERIALS

2.4.1 Miscellaneous Wood Members

2.4.1.1 Nonstress Graded Members: Members shall include bridging, corner bracing, furring, grounds, and nailing strips. Members shall be in accordance with TABLE I for the species used.

Sizes shall be as follows unless otherwise shown:

PROJECT NO. BR549 06 10 00-5 Rough Carpentry

Member Size (inch)

Corner bracing 1 x 4.

Furring 1/2” plywood where plywood shown, 1x3 otherwise.

Nailing strips 1 x 3 or 1 x 4 when used as shingle base or interior finish, otherwise 2 inch stock.

2.4.1.2 Sill Plates shall be Douglas Fir Larch standard or number 2 grade.

2.4.1.3 Blocking shall be standard or number 2 grade.

2.4.1.4 Adhesives: Comply with applicable regulations regarding toxic and hazardous materials, GS-36, and as specified. Use water-based adhesives with maximum VOC content of 15 grams/liter for all interior applications.

2.5 ROUGH HARDWARE: Unless otherwise indicated or specified, rough hardware shall be of the type and size necessary for the project requirements. Sizes, types, and spacing of fastenings of manufactured building materials shall be as recommended by the product manufacturer unless otherwise indicated or specified. Rough hardware exposed to the weather or embedded in or in contact with preservative treated wood, exterior masonry, or concrete walls or slabs shall be stainless steel. Nails and fastenings for fire-retardant treated lumber and woodwork exposed to the weather shall be stainless steel.

2.5.1 Bolts, Nuts, Studs, and Rivets

ASME B18.2.1, ASME B18.5.2.1M, ASME B18.5.2.2M and ASME B18.2.2.

2.5.2 Anchor Bolts

ASTM A 307, size as indicated, complete with nuts and washers.

2.5.3 Lag Screws and Lag Bolts

ASME B18.2.1.

2.5.4 Wood Screws

ASME B18.6.1.

PROJECT NO. BR549 06 10 00-6 Rough Carpentry

2.5.5 Nails and Staples: ASTM F 547, size and type best suited for purpose; staples shall be as recommended by the manufacturer of the materials to be joined. For sheathing, length of nails shall be sufficient to extend 1 inch into supports. In general, 8-penny or larger nails shall be used for nailing through 1 inch thick lumber and for toe nailing 2 inch thick lumber; 16-penny or larger nails shall be used for nailing through 2 inch thick lumber. Nails used with treated lumber and sheathing shall be stainless steel. Nailing shall be in accordance with the recommended nailing schedule contained in AF&PA T10. Where detailed nailing requirements are not specified, nail size and spacing shall be sufficient to develop an adequate strength for the connection. The connection's strength shall be verified against the nail capacity tables in AF&PA T101. Reasonable judgment backed by experience shall ensure that the designed connection will not cause the wood to split. If a load situation exceeds a reasonable limit for nails, a specialized connector shall be used.

2.5.6 Tacks

2.5.6.1 FS FF-T-1813.

2.5.7 Timber Connectors

2.5.7.1 Unless otherwise specified, timber connectors shall be in accordance with TPI 1, APA EWS T300E or AITC TCM.

2.5.8 Clip Angles

2.5.8.1 Steel, as indicated or iron commercial clips designed for connecting wood members.

2.5.9 Tie Straps

2.5.10 Door Buck Anchors

2.5.10.1 Metal anchors, 3 by 30 mm( 1/8 by 1-1/4 inch) steel, 300 mm( 12 inches) long, with ends bent 50 mm( 2 inches). Anchors shall be screwed to the backs of bucks. Locate 200 mm( 8 inches) above sills and below heads and not more than 600 mm( 24 inches) intermediately between.

2.5.11 Metal Framing Anchors

2.5.11.1 Metal framing anchors shall be as manufactured by Simpson Strong Tie or approved equal. Special nails supplied by the manufacturer shall be used for all nailing.

2.5.12 Panel Edge Clips

2.5.12.1 Provide Extruded aluminum or galvanized steel, H-shaped clips to prevent differential deflection of wall sheathing on the east and the west exterior walls where new plywood edges do not have existing or new blocking behind the existing wood sheathing.

PROJECT NO. BR549 06 10 00-7 Rough Carpentry

2.6 AIR INFILTRATION BARRIER

2.6.1 See Division 07 Section “Weather Barriers”.

PART - 3 EXECUTION

3.1 INSTALLATION

3.1.1 Conform to AF&PA T10 and install in accordance with the National Association of Home Builders (NAHB) Advanced Framing Techniques: Optimum Value Engineering, unless otherwise indicated or specified. Select lumber sizes to minimize waste. Fit framing lumber and other rough carpentry, set accurately to the required lines and levels, and secure in place in a rigid manner. Do not splice framing members between bearing points. Set joists, rafters, and purlins with their crown edge up. Frame members for the passage of pipes, conduits, and ducts.

Provide adequate support as appropriate to the application, climate, and modulus of elasticity of the product. Do not cut or bore structural members for the passage of ducts or pipes without approval from the Contracting Officer. Reinforce all members damaged by such cutting or boring by means of specially formed and approved sheet metal or bar steel shapes, or remove and provide new, as approved. Provide as necessary for the proper completion of the work all framing members not indicated or specified. Spiking and nailing not indicated or specified otherwise shall be in accordance with the Nailing Schedule contained in ICC IBC; perform bolting in an approved manner. Spikes, nails, and bolts shall be drawn up tight. Timber connections and fastenings shall conform to AF&PA T101. Use slate or steel shims when leveling joists, beams, and girders on concrete or steel. Do not use shimming on wood or metal bearings. When joists, beams, and girders are placed on concrete, a wood base plate shall be positioned and leveled with grout.

3.1.2 Sills: Set sills level and square and wedge with steel shims; point or grout with non-shrinking cement mortar to provide continuous and solid bearing. Anchor sills to the foundations. Where sizes and spacing of anchor bolts are not indicated, provide not less than 5/8 inch diameter bolts at all corners and splices and space at a maximum of 4 feet o.c. between corner bolts. Provide at least two bolts for each sill member. Lap and splice sills at corners and bolt through the laps or butt the ends and through-bolt not more than 16 inches from the ends.

Provide bolts with plate washers and nuts. Bolts in exterior walls shall be zinc-coated.

3.1.3 Wall Sheathing

3.1.3.1 Plywood, Structural or Non-Structural-Use: Apply horizontally or vertically. Extend sheathing over and nail to sill and top plate. Abut sheathing edges over centerlines of supports.

Allow 1/8 inch spacing between panels and 1/8 inch at windows and doors. If sheathing is applied horizontally, stagger vertical end joints. Nail panels with 8-penny nails spaced 6 inches o.c. along edges of the panel and 12 inches o.c. over intermediate supports unless otherwise noted on the plans. Keep nails 3/8 inches away from panel ledges. Provide 2 by 4 blocking for horizontal edges not otherwise supported.

PROJECT NO. BR549 06 10 00-8 Rough Carpentry

3.1.4 Roof Sheathing

3.1.4.1 Plywood, Non-Structural-Use: Apply horizontally. Extend sheathing to ridges and butt against snow melt panels at eaves. Abut sheathing edges over centerlines of supports. Allow 1/8 inch spacing between panels. Stagger panels over existing sheathing below. Stagger end joints.

Nail panels with 8-penny nails spaced 6 inches o.c. along edges of the panel and 12 inches o.c.

over intermediate supports unless otherwise noted on the plans. Keep nails 3/8 inches away from panel ledges.

3.2 MISCELLANEOUS

3.2.1 Wood Roof Nailers, Edge Strips, Crickets, Curbs, and Cants: Provide sizes and configurations indicated or specified and anchored securely to continuous construction.

3.2.2 Wood Blocking: Provide proper sizes and shapes at proper locations for the installation and attachment of wood and other finish materials, fixtures, equipment, and items indicated or specified.

3.2.3 Wood Grounds: Provide for fastening wood trim, finish materials, and other items to plastered walls and ceilings. Install grounds in proper alignment and true with an 2400 mm( 8 foot) straightedge.

3.2.4 Wood Furring: Provide where shown and as necessary for facing materials specified.

Erect furring vertically or horizontally as necessary. Nail furring strips to masonry. Do not use wood plugs. Provide furring strips around openings, behind bases, and at angles and corners.

Furring shall be plumb, rigid, and level and shall be shimmed as necessary to provide a true, even plane with surfaces suitable to receive the finish required.

3.2.5 Temporary Closures: Provide with hinged doors and padlocks and install during construction at exterior doorways and other ground level openings that are not otherwise closed.

Cover windows and other unprotected openings with polyethylene or other approved material, stretched on wood frames. Provide dustproof barrier partitions to isolate areas as directed.

3.2.6 Corner Bracing: shall be installed when required by type of sheathing used or when siding, other than panel siding, is applied directly to studs. Corner bracing shall be let into the exterior surfaces of the studs at an angle of approximately 45 degrees, shall extend completely over wall plates, and shall be secured at each bearing with two nails.

3.2.7 Sill Plates: shall be set level and square and anchor bolted at not more than 6 feet on centers and not more than 12 inches from end of each piece. A minimum of two anchors shall be used for each piece.

3.2.8 Pressure-Treated Wood: shall be isolated or separated from all aluminum and any metal products or fasteners of materials other than G-185 hot dipped galvanized steel or stainless steel.

PROJECT NO. BR549 06 10 00-9 Rough Carpentry

3.3 ERECTION TOLERANCES

3.3.1 Framing members which will be covered by finishes such as wallboard, plaster, or ceramic tile set in a mortar setting bed, shall be within the following limits:

3.3.1.1 Layout of walls and partitions: 1/4 inch from intended position;

3.3.1.2 Plates and runners: 1/4 inch in 8 feet from a straight line;

3.3.1.3 Studs: 1/4 inch in 8 feet out of plumb, not cumulative; and

3.3.1.4 Face of framing members: 1/4 inch in 8 feet from a true plane.

3.4 WASTE MANAGEMENT

3.4.1 Clearly separate damaged wood and other scrap lumber for acceptable alternative uses on site, including bracing, blocking, cripples, ties, and shims.

3.4.2 Separate composite wood from other wood types and recycle or reuse. Fold up metal banding, flatten, and recycle.

3.4.3 Separate treated, stained, painted, and contaminated wood and place in designated area for hazardous materials. Dispose of according to local regulations. Do not leave any wood, shavings, sawdust, or other wood waste buried in fill or on the ground, unless for planned future use. Prevent sawdust and wood shavings from entering the storm drainage system. Compost sawdust. Do not burn scrap lumber.

***END OF SECTION***

PROJECT NO. BR549 06 20 01-1 Finish Carpentry

SECTION 06 20 00

FINISH CARPENTRY

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN LUMBER STANDARDS COMMITTEE (ALSC)

ALSC PS 20 (2005) American Softwood Lumber Standard

AMERICAN WOOD PROTECTION ASSOCIATION (AWPA)

AWPA M2 (2007) Standard for Inspection of Treated Wood Products

AWPA P5 (2009) Standard for Waterborne Preservatives

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI A161.2 (1998) Decorative Laminate Countertops, Performance Standards for Fabricated High Pressure

ANSI/NEMA LD 3 (2005) Standard for High-Pressure Decorative Laminates

APA - THE ENGINEERED WOOD ASSOCIATION (APA)

APA PS 1 (1995) Voluntary Product Standard for Construction and Industrial Plywood

ARCHITECTURAL WOODWORK INSTITUTE (AWI)

AWI Qual Stds (8th Edition) AWI Quality Standards

ASME INTERNATIONAL (ASME)

ASME B18.2.1 (1996; R 2005) Square and Hex Bolts and Screws (Inch Series)

ASME B18.2.2 (1987; R 2005) Standard for Square and Hex Nuts

ASME B18.6.1 (1981; R 2008) Wood Screws (Inch Series)

ASTM INTERNATIONAL (ASTM)

ASTM F 547 (2006) Nails for Use with Wood and Wood-Base Materials

HARDWOOD PLYWOOD AND VENEER ASSOCIATION (HPVA)

HPVA HP-1 (2009) American National Standard for Hardwood and Decorative Plywood

PROJECT NO. BR549 06 20 01-2 Finish Carpentry

WINDOW AND DOOR MANUFACTURERS ASSOCIATION (WDMA)

WDMA I.S. 4 (2009) Water-Repellent Preservative Non-Pressure Treatment for Millwork

1.2 SUBMITTALS: Submit the following:

Product Samples: Plastic laminate

1.3 DELIVERY, STORAGE, AND HANDLING

Deliver lumber, plywood, trim, and millwork to job site in an undamaged condition. Stack materials to ensure ventilation and drainage. Protect against dampness before and after delivery.

Store materials under cover in a well-ventilated enclosure and protect against extreme changes in temperature and humidity. Do not store products in building until wet trade materials are dry.

1.4 SEQUENCING AND SCHEDULING: Coordinate work with other trades. Window sills shall not be installed in any room until painting is complete within the room.

1.5 QUALITY ASSURANCE

1.5.1 Lumber: Identify each piece or each bundle of lumber, millwork, and trim by the grade mark of a recognized association or independent inspection agency that is certified by the Board of Review, American Lumber Standards Committee, to grade the species.

1.5.2 Plywood: Each sheet of plywood shall bear the mark of a recognized association or independent inspection agency that maintains continuing control over quality of the plywood.

Mark shall identify plywood by species group or span rating, and shall show exposure durability classification, grade, and compliance with APA PS 1.

1.5.3 Pressure-Treated Lumber and Plywood: Each treated piece shall be inspected in accordance with AWPA M2.

1.5.4 Nonpressure-Treated Woodwork and Millwork: Mark, stamp, or label, indicating compliance with WDMA I.S. 4.

PART - 2 PRODUCTS

2.1 WOOD

2.1.1 Sizes and Patterns of Wood Products: Yard and board lumber sizes shall conform to ALSC PS 20. Provide shaped lumber and millwork in the patterns indicated and standard patterns of the association covering the species. Size references, unless otherwise specified, are nominal sizes, and actual sizes shall be within manufacturing tolerances allowed by the applicable standard.

2.1.2 Hardwood Plywood: HPVA HP-1, Type A Grade, of thickness indicated.

2.2 MOISTURE CONTENT OF WOOD PRODUCTS

PROJECT NO. BR549 06 20 01-3 Finish Carpentry

Air-dry or kiln-dry lumber. Kiln-dry treated lumber after treatment. Maximum moisture content of wood products at time of delivery to the job site, and when installed, shall be as follows:

2.2.1 Interior Finish Lumber, Trim, and Millwork 25 mm( 1-1/4 Inches Nominal) or Less in Thickness: 6 percent on 85 percent of the pieces and 8 percent on remainder.

2.2.2 Moisture content of other materials shall be in accordance with the applicable standards.

2.3 PRESERVATIVE TREATMENT OF WOOD PRODUCTS

2.3.1 Pressure Treatment: Lumber and plywood used on the exterior of buildings or in contact with masonry or concrete shall be treated with water-borne preservative listed in AWPA P5 as applicable, and inspected in accordance with AWPA M2. Identify treatment on each piece of material by the quality mark of an agency accredited by the Board of Review of the American Lumber Standards Committee. Plywood shall be treated to a reflection level as follows:

2.4 FASTENERS: Nails, screws, and other suitable fasteners shall be the size and type best suited for the purpose and shall conform to ASTM F 547 where applicable.

2.4.1 Wood Screws

ASME B18.6.1.

2.4.2 Bolts, Nuts, Lag Screws, and Studs

ASME B18.2.1 and ASME B18.2.2.

2.4.3 Nails: Nails shall be hot-dip galvanized or aluminum when used on exterior work. For siding, length of nails shall be sufficient to extend 40 mm( 1-1/2 inches) into supports, including wood sheathing over framing. Screws for use where nailing is impractical shall be size best suited for purpose.

2.5 ADHESIVES, CAULKS, AND SEALANTS

2.5.1 Adhesives: Adhesives shall be of a formula and type recommended by AWI. Adhesives shall be selected for their ability to provide a durable, permanent bond and shall take into consideration such factors as materials to be bonded, expansion and contraction, bond strength, fire rating, and moisture resistance. Adhesives shall meet local regulations regarding VOC emissions and off-gassing.

2.5.1.1 Wood Joinery: Adhesives used to bond wood members shall be a Type II for interior use polyvinyl acetate resin emulsion. Adhesives shall withstand a bond test as described in

WDMA I.S. 1-A.

2.5.2 Caulk and Sealant: See Division 07 Section “Joint Sealants”.

PROJECT NO. BR549 06 20 01-4 Finish Carpentry

2.6 WINDOW SILL AND RETURNS FABRICATION: Verify field measurements as indicated in the shop drawings before fabrication. Fabrication and assembly of components shall be accomplished at the shop site to the maximum extent possible. Construction and fabrication shall meet or exceed the requirements for AWI premium grade unless otherwise indicated in this specification. Sill and return configuration, in accordance with AWI Qual Stds,, shall match existing configuration and may vary from conditions indicated on Drawings.

2.6.1 Sill Components: Verify existing configuration in field.

2.7 FINISHING

2.7.1 Filling: No fasteners shall be exposed. All nails, screws, and other fasteners in non-laminated components shall be countersunk and the holes filled with wood filler consistent in color with the wood species.

2.7.2 Coatings: Types, method of application and location of finishes, if applicable, shall be in accordance with the drawings and Division 09 Section “Paints and Coatings”.

PART - 3 EXECUTION

3.1 FINISH WORK: Provide sizes, materials, and designs as indicated and as specified.

Apply primer to finish work before installing. Where practicable, shop assemble and finish items of built-up millwork. Joints shall be tight and constructed in a manner to conceal shrinkage. Material shall show no warp after installation. Install millwork and trim in maximum practical lengths. Provide blind nailing where practicable.

3.1.1 Exterior Finish Work: Construct joints to exclude water. In addition to nailing, glue joints of built-up items with waterproof glue as necessary for weather-resistant construction.

Provide well distributed end joints in built-up members. Provide shoulder joints in flat work.

Fascias and other flat members, unless otherwise indicated, shall be 19 mm( 3/4 inch) thick, minimum, or thicker if indicated. Provide door and window trim in single lengths. Joints of plywood shall occur over center lines of supports.

3.2 WINDOW SILLS: Provide all with returns cut accurately to profile of adjacent member.

3.3 EXTERIOR TRIM: Install as indicated, where shown on drawings.

***End of Section***

PROJECT NO. BR549 06 60 00-1 Plastic Fabrications

SECTION 06 60 00

PLASTIC FABRICATIONS

1.1 SECTION INCLUDES: Cellular PVC trim boards

1.2 RELATED SECTIONS

Division 06 Section "Rough Carpentry".

Division 07 Section “Weather Barriers”.

Division 07 Section “Fiber Cement Siding”.

1.3 REFERENCES

ASTM INTERNATIONAL (ASTM)

ASTM D792 Density and Specific Gravity of Plastics by Displacement.

ASTM D570 Water Absorption of Plastics.

ASTM D638 Tensile Properties of Plastics.

ASTM D790 Flexural Properties of Unreinforced and Reinforced Plastics and Electrical insulating Materials.

ASTM D1761 Mechanical Fasteners in Wood.

ASTM D5420 Standard Test Method for Impact Resistance of Flat, Rigid Plastic Specimen by means of a Striker Impacted by a Falling Weight.

ASTM D256 Determining the Pendulum Impact Resistance of Plastics.

ASTM D696 Coefficient of Linear Thermal Expansion of Plastics Between -30°C and 30°C with a Vitreous silica Dilatometer.

ASTM D635 Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position.

ASTM E84 Surface Burning Characteristics of Building Materials.

ASTM D648 Deflection Temperature of Plastics Under Flexural Load in the Edgewise position.

ASTM D3679 Standard Specification for Rigid Poly Vinyl Chloride (PVC) Siding.

PROJECT NO. BR549 06 60 00-2 Plastic Fabrications

1.4 SUBMITTALS: Submit the following:

Product Data: Submit product data for specified products.

Samples: Submit three material samples representative of the texture, thickness and widths shown and specified herein.

1.5 QUALITY ASSURANCE: ALLOWABLE TOLERANCES:

Variation in component length: -0.00 / +1.00”

Variation in component width: ± 1/16”

Variation in component thickness: ± 1/16”

Variation in component edge cut: ± 2°

Variation in Density -0% + 10%

Workmanship, Finish, and Appearance:

Free foam cellular PVC that is homogeneous and free of voids, holes, cracks, and foreign inclusions and other defects. Edges must be square, and top and bottom surfaces shall be flat with no convex or concave deviation.

Uniform surface free from cupping, warping, and twisting.

1.6 DELIVERY, STORAGE AND HANDLING: Trim materials should be stored on a flat and level surface on a full shipping pallet. Handle materials to prevent damage to product edges and corners. Store materials under a protective covering to prevent jobsite dirt and residue from collecting on the boards.

1.7 WARRANTY: Provide 20 year minimum warranty against defects in manufacturing that cause the products to rot, corrode, delaminate, or excessively swell from moisture.

PART - 2 PRODUCTS

2.1 MATERIALS

Basis of Design: AZEK® Trim and Cornerboards w/ Frontier finish manufactured by Vycom Corporation, 801 Corey Street, Moosic, PA 18507. Provide basis of design product, or comparable product.

2.1.1 Material Composition: Free foam cellular PVC material with a small-cell microstructure and density of 55 grams/cm3. Material shall have minimum physical and performance properties specified on the following page.

PROJECT NO. BR549 06 60 00-3 Plastic Fabrications

Performance and physical characteristic requirements:

PROPERTY UNITS VALUE

ASTM

METHOD

PHYSICAL

Density g/cm3 0.55 D 792 Water Absorption % 0.15 D 570

MECHANICAL

Tensile Strength psi 2256 D 638 Tensile Modulus psi 144,000 D 638 Flexural Strength psi 3329 D 790 Flexural Modulus psi 144,219 D 790

Nail Hold Lbf/in of penetration 35 D 1761

Screw Hold Lbf/in of penetration 680 D 1761

Staple Hold Lbf/in of penetration 180 D 1761

Gardner Impact in-lbs 103 D 5420 Charpy Impact (@23°C) ft-lbs 4.5 D 256

THERMAL

Coefficient of Linear Expansion in/in/°F 3.2 x 10-5 D 696

Burning Rate in/min

No burn when flame removed D 635

Flame Spread Index -- 25 E 84 Heat Deflection Temp 264 psi °F 150 D 648 Oil Canning (@140°F) °F Passed D 648

Sizes: As indicated on drawings.

2.2 ACCESSORY PRODUCTS

Fasteners:

Use stainless steel fasteners designed for wood trim and wood siding (thinner shank, blunt point, full round head).

Staples, small brads and wire nails must not be used as fastening members.

The fasteners should be long enough to penetrate the solid wood substrate a minimum of 1 1/2”.

PROJECT NO. BR549 06 60 00-4 Plastic Fabrications

Use 2 fasteners per every framing member for trimboards applications. Trimboards 12” or wider, as well as sheets, will require additional fasteners.

Fasteners must be installed no more than 2” from the end of each board.

PVC trim should be fastened into a flat, solid substrate. Fastening product into hollow or uneven areas must be avoided.

Pre-drilling is typically not required unless a large fastener is used or product is installed in low temperatures.

3/8” and 1/2” sheet product is not intended to be ripped into trim pieces. These profiles must be glued to a substrate and mechanically fastened.

Sealants:

Use urethane, polyurethane or acrylic based sealants without silicone.

2.3 FINISHES: PVC trim products do not require paint for protection, but may be painted to achieve a custom color.

Preparation:

No special surface preparations are required prior to painting - sanding is not necessary for paint adhesion.

Surface must be clean and dry.

Use a 100% acrylic latex paint with a Light Reflective Value (LRV) of 55 or higher.

Follow the paint manufacturer’s recommendations to apply.

PART - 3 EXECUTION

3.1 INSTALLATION: Manufacturers instructions:

Comply with manufacturer’s product catalog installation instructions and product technical Bulletin instructions.

3.1.1 Cutting: Product can be cut using the same tools used to cut lumber.

Carbide tipped blades designed to cut wood work well. Avoid fine tooth metal cutting blades.

Rough edges from cutting may be caused by excessive friction, poor board support, or worn or improper tooling.

3.1.2 Drilling: Product can be drilled using the same tools used to drill lumber.

Drilling PVC trim products is similar to drilling a hardwood. Care should be taken to avoid frictional heat buildup. Use standard woodworking drills. Do not use drills made for normal rigid PVC.

Periodic removal of PVC product shavings from the drill hole may be necessary.

3.1.3 Milling: Product can be milled using standard milling machines used to mill lumber.

Relief Angle 20° to 30°

Cutting speed to be optimized with the number of knives and feed rate.

PROJECT NO. BR549 06 60 00-5 Plastic Fabrications

3.1.4 Routing: Product can be routed using standard router bits and the same tools used to rout lumber.

Carbide tipped router bits are recommended.

3.1.5 Edge Finishing: Edges can be finished by sanding, grinding or filing with traditional woodworking tools.

3.1.6 Nail Location: Use 2 fasteners per every framing member for trimboard applications.

Trimboards over 12” or wider, as well as sheets, will require additional fasteners.

Fasteners must be installed no more than 2” from the end of each board.

Thermal Expansion and Contraction

PVC trim products expand and contract with changes in temperature.

Properly fastening material along its entire length will minimize expansion and contraction.

When properly fastened, allow for 1/8” per 18 foot of product for expansion and contraction.

Joints between pieces of PVC trim shall be glued to eliminate joint separation. When gaps are glued on a long run of product, allow expansion and contraction at ends of the run.

PROJECT NO. BR549 07 21 13-1 Board…