Addendum 1.pdf
PDF 209 KB Posted
- Solicitation number
- RFQ - 171 - 240000000306
- Issued by
- Otsego County, Michigan
About this file
This document is an Addendum to the IFB for the DNR Gaylord FRD FO Roof Replacement project, identified as DTMB File No. 751/23039.DPL, issued by the Michigan Department of Technology, Management, and Budget (DTMB). The Addendum clarifies that the specifications for metal roof panels and snow guards were not previously included with the bid documents, and provides the missing specifications. The bid date for this project is 3/13/24.
The project involves the replacement of the roof at the DNR Gaylord FRD FO facility. The scope includes the installation of mechanically seamed standing seam metal roof panels over a plywood roof deck, along with related metal trim, accessories, and snow guards. The contract documents provide performance requirements, material specifications, and installation details for the metal roof panel system. The contract period and any renewal options are not specified in the provided documents.
View the file
Other files
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
ADDENDUM 1
757 S. WISCONSIN AVENUE ▪ GAYLORD MI 49735
p h o n e 989.705.8400 ▪ f a x 989.705.8403
-1-
Addendum Number: 1
Date: 3.4.24
Project Name: DNR Gaylord FRD FO Roof Replacement
SG Project Number: 523575 DTMB File No.: 751/23039.DPL
Bid Date: 3.13.24
This Addendum is being issued for the purpose of clarifying and/or modifying the original Bidding Documents and shall take precedence over them. Each Bidder’s proposal shall include the Work described herein. All requirements contained in the Contract Documents shall apply to this Addendum. All incidental work necessary to complete the Work shall be included in the Contractor’s quotation even though not particularly mentioned. Parts of the Specifications and Drawings referred to herein supersede previously issued data and form a part of this Addendum.
CLARIFICATIONS:
1. Missing specifications.
ATTACHMENTS:
The following documents are a part of this Addendum:
1. DC Specification Table of Contents.
2. Specification: 07 4113 – Metal Roof Panels.
3. Specification: 07 7200 – Roof accessories.
STATEMENT OF WORK: Missing specifications
It has been brought to our attention that the specifications for the metal roof panels and the snow guards were not post in SIGMA with the plans and specifications posted under the File No. 751/23039.DPL. The missing specifications and corrected Table of Contents in the DC Spec are attached.
END OF ADDENDUM
Bidding and Contract Document (R 02/23) Project Name: DNR FRD FO Roof Replacement File No. 751/23039.DPL
TABLE OF CONTENTS
CONTRACT FORMS
BID SUMMARY FORM
BID SCHEDULE
QUALIFIED DISABLED VETERAN (QDV) BUSINESS REPRESENTATION
CERTIFICATION OF A MICHIGAN BASED BUSINESS
BID BOND
POST-BID SUBMITTALS
PERFORMANCE BOND
PAYMENT BOND
TABLE OF CONTENTS
DIVISION 00 BIDDING REQUIREMENTS AND CONTRACT CONDITIONS
SECTION TITLE PAGE
00010 PRE-BID INFORMATION 00-1
00100 INSTRUCTIONS TO BIDDERS 00-3
00120 SUPPLEMENTARY INSTRUCTIONS 00-7
00200 INFORMATION TO BIDDERS 00-8
00700 GENERAL CONDITIONS 00-8
00750 SPECIAL WORKING CONDITIONS 00-20
00800 SUPPLEMENTARY CONDITIONS 00-21
00850 FEDERALLY FUNDED WAGE DETERMINATION SCHEDULE (Not Applicable) 00-21
00900 ADDENDA 00-21
DIVISION 01 - GENERAL REQUIREMENTS
01010 SUMMARY OF WORK 01-1
01020 ALLOWANCES 01-1
01025 MEASUREMENT AND PAYMENT 01-1
01030 ALTERNATES 01-1
01040 COORDINATION 01-2
01050 FIELD ENGINEERING 01-2
01060 REGULATORY REQUIREMENTS 01-2
01090 REFERENCES 01-4
01100 PROJECT PROCEDURES 01-5
01200 PROJECT MEETINGS 01-5
01300 SUBMITTALS 01-6
01400 QUALITY CONTROL 01-9
01500 CONSTRUCTION FACILITIES AND TEMPORARY CONTROLS 01-10
01600 MATERIAL AND EQUIPMENT 01-10
01650 FACILITY START-UP 01-11
01700 CONTRACT CLOSE-OUT 01-11
01800 MAINTENANCE 01-11
APPENDIX I – GLOSSARY
APPENDIX II – SPECIAL WORKING CONDITIONS
APPENDIX III – SPECIAL PROJECT PROCEDURES
APPENDIX IV – REQUIRED PROJECT SIGN
APPENDIX V – PREVAILING WAGE
DIVISION 07 – THERMAL and MOISTURE PROTECTION
074113 METAL ROOF PANELS 01-7
077200 ROOF ACCESSORIES 01-2
DRAWINGS - BOUND HEREIN (Not Applicable)
TITLE PAGE NOS.
DRAWINGS - BOUND SEPARATELY
523575_GAYLORD FRD FO
ROOF REPLACEMENT –
751/23039
07 4113 - 1 METAL ROOF PANELS
SECTION 07 4113
METAL ROOF PANELS, STANDING SEAM
PART 1 - GENERAL
1.1 SECTION INCLUDES
A. Mechanically seamed standing seam metal roof panels installed over a plywood roof deck with related metal trim and accessories.
1.2 RELATED REQUIREMENTS
A. Division 06 Section “Rough Carpentry” for related requirements.
B. Division 07 Section "Sheet Metal Flashing and Trim" for formed sheet metal copings, flashing and reglets, and roof drainage items in addition to items specified in this Section.
C. Division 07 Section "Manufactured Roof Specialties" for manufactured copings, flashing and reglets, and roof drainage items in addition to items specified in this Section.
D. Division 07 Section "Snow Guards" for prefabricated devices designed to hold snow on the roof surface.
E. Division 07 Section "Joint Sealants" for field-applied joint sealants.
1.3 REFERENCES
A. American Architectural Manufacturer's Association (AAMA): www.aamanet.org:
1. AAMA 621 – Voluntary Specifications for High Performance Organic Coatings on Coil
Coated Architectural Hot Dipped Galvanized (HDG) & Zinc-Aluminum Coated Steel Substrates.
2. AAMA 809.2 – Voluntary Specification Non-Drying Sealants.
B. American Society of Civil Engineers (ASCE): www.asce.org/codes-standards:
1. ASCE 7 – Minimum Design Loads for Buildings and Other Structures.
C. ASTM International (ASTM): www.astm.org:
1. ASTM A 653 – Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-
Coated (Galvannealed) by the Hot-Dip Process.
2. ASTM A 755 – Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and
Pre-painted by the Coil-Coating Process for Exterior Exposed Building Products.
3. ASTM A 792 - Standard Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-Coated by the Hot-Dip Process.
4. ASTM B 209 – Specification for Aluminum and Aluminum-Alloy Sheet and Plate.
5. ASTM D 1970 – Standard Specification for Self-Adhering Polymer Modified Bituminous
Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection.
6. ASTM D 2244 – Test Method for Calculation of Color Differences from Instrumentally
Measured Color Coordinates.
7. ASTM D 4214 – Test Methods for Evaluating Degree of Chalking of Exterior Paint Films.
8. ASTM E 84 – Standard Test Method for Surface Burning Characteristics of Building
Materials.
9. ASTM E 1646 – Standard Test Method for Water Penetration of Exterior Metal Roof Panel
Systems by Uniform Static Air Pressure Difference.
10. ASTM E 1680 – Standard Test Method for Rate of Air Leakage Through Exterior Metal
Roof Panel Systems.
11. ASTM E 1980 – Practice for Calculating Solar Reflectance Index of Horizontal and Low-
Sloped Opaque Surfaces.
12. ASTM E 2140 – Standard Test Method for Water Penetration of Metal Roof Panel
Systems by Static Water Pressure Head.
D. International Code Council Evaluation Service (ICC-ES): www.icc-es.org:
1. ICC ES AC188 – Acceptance Criteria for Roof Underlayments.
E. Underwriters Laboratories, Inc. (UL): www.ul.com:
1. UL 580 – Tests for Uplift Resistance of Roof Assemblies
07 4113 - 2 METAL ROOF PANELS
2. UL 1897 – Standard for Uplift Tests for Roof Covering Systems
3. UL 2218 – Impact Resistance of Prepared Roof Covering Materials
4. UL 790 – Standard Test Methods for Fire Tests of Roof Covering Systems
1.4 ADMINISTRATIVE REQUIREMENTS
A. Pre-installation Meeting: Prior to erection of framing, conduct pre-installation meeting attended by Owner, Architect, manufacturer's representative, inspection agency, structural-support Installer, and related trade contractors.
1.5 QUALITY ASSURANCE
A. Manufacturer Qualifications: Approved manufacturer listed in this Section with minimum five years' experience in manufacture of similar products in successful use in similar applications.
1. Approval of Comparable Products: Submit the following in accordance with project substitution requirements, within time allowed for substitution review:
a. Product data, including certified independent test data indicating compliance with requirements.
b. Side by side comparison of specified characteristics.
c. Samples of each component.
d. Project references: Minimum of five completed installations, with Owner and Architect contact information.
e. Sample warranty.
2. Substitutions following award of contract are not allowed except as stipulated in Division 01 General Requirements.
3. Approved manufacturers must meet separate requirements of Submittals Article.
B. Installer Qualifications: Experienced Installer certified by metal roof panel manufacturer with minimum of five years’ experience with successfully completed projects of a similar nature and scope.
1. Installer's Field Supervisor: Certified by metal roof panel manufacturer with minimum of five years' experience with successfully completed projects of a similar nature and scope, able to communicate with workers and Architect, supervising work on site whenever work is underway.
1.6 ACTION SUBMITTALS
A. Product Data: Manufacturer’s data sheets for specified products.
1. Include data indicating compliance with performance requirements.
2. Include structural data indicating compliance with requirements of authorities having jurisdiction.
B. Sustainable Design Submittals:
1. Product Test Reports: For roof materials, documentation indicating that roof materials comply with Solar Reflectance Index requirements.
2. Product Data: For recycled content, indicating postconsumer and pre-consumer recycled content.
C. Shop Drawings: Show layout of metal roof panels. Include details of each condition of installation, panel profiles, and attachment to building. Provide details of edge conditions, joints, fastener and sealant placement, flashings, openings, penetrations, roof accessories, and special details.
D. Samples for Initial Selection: For each exposed product specified. Provide representative color charts of manufacturer's full range of colors.
E. Samples for Verification: Provide 12-inch-long section of each metal panel profile. Provide color chip verifying color selection.
1.7 INFORMATIONAL SUBMITTALS
A. Qualification Information: For Installer firm and Installer’s field supervisor.
07 4113 - 3 METAL ROOF PANELS
B. Product Test Reports: Upon request, for each product, for tests performed by a qualified testing agency.
C. Manufacturer's Warranty: Sample copy of manufacturer's standard warranty.
1.8 CLOSEOUT SUBMITTALS
A. Maintenance data.
B. Manufacturer's Warranty: Executed copy of specified warranty.
1.9 DELIVERY, STORAGE, AND HANDLING
A. Protect products of metal panel system during shipping, handling, and storage to prevent staining, denting, deterioration of components or other damage. Protect panels and trim bundles during shipping.
1. Deliver, unload, store, and erect metal panel system and accessory items without misshaping panels or exposing panels to surface damage from weather or construction operations.
2. Store in accordance with Manufacturer's written instructions. Provide wood collars for stacking and handling in the field.
1.10 COORDINATION
A. Coordinate plywood decking profile selection required for compliance with wind uplift requirements of metal roof panel system.
B. Coordinate sizes, profiles, and locations of roof curbs and other roof-mounted equipment and roof penetrations, based upon sizes of actual selected equipment.
C. Coordinate metal panel installation with rain drainage work, flashing, trim, construction of soffits, and other adjoining work to provide a leakproof, secure, and noncorrosive installation.
1.11 WARRANTY
A. Substrate Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace components of metal panel systems that fail in materials within specified warranty period when exposed to normal atmospheric conditions.
1. Failures include, but are not limited to, the following:
a. Structural failures including rupturing, cracking, or puncturing.
b. Deterioration of metals and other materials beyond normal weathering.
2. Warranty Period:
a. Painted AZ50 Galvalume: 25-Years, 6-Months after shipment from manufacturer.
b. AZ55 Non-painted Acrylic-Coated Galvalume Plus: 25-Years, 6-Months after shipment from manufacturer.
c. Painted Aluminum: 20-Years, 6-Months after shipment from manufacturer.
B. Panel Finish Warranty: On Manufacturer’s standard form, in which Manufacturer agrees to repair or replace metal roof panels that evidence deterioration of factory-applied finish under normal atmospheric conditions, including:
1. Fluoropolymer Paint System:
a. Color fading exceeding 5 Hunter units per ASTM D 2244.
b. Chalking exceeding No. 8 rating per ASTM D 4214.
c. Failure of adhesion, peeling, checking, or cracking.
d. Finish Warranty Period, Paint Finish: 40-Years from date of installation.
C. Weathertightness Warranty: On Manufacturer’s standard form, in which Manufacturer and Installer jointly agree to repair or replace metal panel assemblies furnished by manufacturer, without monetary limitation, that fail to remain weathertight, including leaks, within the Warranty Period.
1. Weathertightness Warranty Period: <Insert applicable period> years from date of installation.
a. Standard Weathertightness Warranty: 20.
b. Without Monetary Limitation (NDL) Warranty: 20.
07 4113 - 4 METAL ROOF PANELS
D. Special Installer Warranty: Furnish a written warranty signed by the Panel Installer agreeing to repair or replace components of metal panel systems that fail in materials or workmanship within specified warranty period.
1. Warranty Period: 5 years from date of installation.
PART 2 - PRODUCTS
2.1 MANUFACTURER
A. Basis of Design Manufacturer: Sheffield Metals International, SMI 1.5 MS;
www.sheffieldmetals.com.
B. Acceptable Manufacturers:
1. NUCOR Building Group: Loc Seam; www.nucorbuildingsystems.com
2. PAC-CLAD: Tite-Loc Plus; www.pac-clad.com
3. Substitutions: See Section 01 6000 - Product Requirements.
C. Manufacturer/Source: Provide metal roof panel assembly and exposed sheet metal accessories from a single manufacturer meeting quality assurance requirements of this Section.
2.2 PERFORMANCE REQUIREMENTS
A. General: Provide metal roof panel system meeting performance requirements as determined by application of specified tests by a qualified testing facility on manufacturer's standard assemblies.
B. Recycled Content: For Steel Products: Postconsumer recycled content plus one-half of pre-consumer recycled content not less than [25] percent.
C. Radiative Property Performance:
1. Solar Reflectance Index (SRI) for Roof Slope Greater than 2:12: Three-year aged SRI minimum 32 or initial SRI minimum 39, per ASTM E 1980.
D. Roofing System Design: Provide roofing system that is identical to systems that have been successfully tested by a qualified testing and inspecting agency in accordance with UL 580, or UL 1897, and to resist uplift pressures.
1. Wind Uplift Resistance: Comply with UL 580 for wind-uplift class UL 90.
2. Wind Loads: Determine loads based on uniform pressure, importance factor, exposure category, and basic wind speed indicated on drawings per ASCE-7.
E. Hail Resistance: Provide metal roof panel assemblies listed as Class 4 hail resistant and tested in accordance with UL 2218.
F. Air Infiltration, ASTM E 1680: Maximum 0.01 cfm/sq. ft. at static-air-pressure difference of 1.57 psf.
G. Water Penetration Static Pressure, ASTM E 1646: No uncontrolled water penetration at a static pressure of 12 psf.
H. Wind Driven Rain Resistance: Provide metal roof panel assemblies tested in accordance with Testing Application Standard (TAS) 100-95: Test procedures for wind and wind driven rain resistance of discontinuous roof systems.
I. Hydrostatic-Head Resistance: No water penetration when tested according to ASTM E 2140.
J. Fire Resistance: Class A Fire Rating in accordance with UL 790.
K. Thermal Movements: Allow for thermal movements from variations in both ambient and internal temperatures. Accommodate movement of support structure caused by thermal expansion and contraction. Allow for deflection and design for thermal stresses caused by temperature differences from one side of the panel to the other.
2.3 METAL ROOF PANELS
A. Mechanically Seamed, Concealed Fastener, Standing Seam Metal Roof Panels: Metal roof panel consisting of formed metal sheet with standing ribs at panel edges, installed by lapping
07 4113 - 5 METAL ROOF PANELS
and mechanically interconnecting edges of adjacent panels, and attaching panels to supports using concealed clips and fasteners in a weathertight installation.
1. Basis of Design: Sheffield Metals International, SMI 1.5" MS Standing Seam Metal Roof
Panel.
2. Aluminum-Zinc Alloy-Coated Steel Sheet: ASTM A 792, structural quality, Grade 50, pre-painted by the coil-coating process per ASTM A 755.
a. Minimum Thickness: 0.0236 inch/24 gage coated thickness.
b. Metal Panel Surface: Smooth.
c. Exterior Finish: Fluoropolymer two-coat system.
d. Color: As selected by Architect from manufacturer's full range of standard colors.
3. Roof Slope: Minimum 2/12
4. Panel Seam Height: 1.5 inch.
5. Panel Width: 16 inch
6. Pan Configuration: Flat.
7. Joint Type: Field mechanically seamed 180 degrees.
2.4 METAL ROOF PANEL ACCESSORIES
A. Panel Clips for Steel Sheets: As per Manufacturer's Engineering Report, a standard two-piece expansion clip with ASTM A 653, G90 (Z180) hot-dip galvanized zinc coating, with 22ga. base and 24ga. top.
B. Panel Clips for Aluminum Sheets: As per Manufacturer's Engineering Report, a standard two-piece expansion clip with ASTM A 653, G90 (Z180) hot-dip galvanized zinc coating, with 18ga.
base and 24ga. top.
C. Panel Fasteners: Self-tapping screws and other acceptable corrosion-resistant fasteners recommended by metal roof panel manufacturer for specified application. Where exposed fasteners cannot be avoided, supply fasteners with EPDM or neoprene gaskets, and heads matching color of metal panels by means of factory-applied coating.
D. Joint Sealers: Manufacturer's standard or recommended liquid and preformed sealers and tapes, and as follows:
1. Tape Sealers: Manufacturer's standard non-curing butyl tape, AAMA 809.2.
2. Concealed Joint Sealant: Non-curing butyl, AAMA 809.2.
2.5 ROOF SYSTEM ACCESSORIES
A. Formed Metal Accessories: Provide complete metal roof assembly incorporating trim, drip edges, fascia, and miscellaneous flashings as required for Project, in metal roof panel manufacturer's recommended profiles. Provide required fasteners, closure strips, support plates, and sealants.
1. Match material, thickness, and finish of metal panels.
2. Drip Edge Material: Match color of existing fascia trim.
B. Snow Guards: Approved by metal roof panel manufacturer. Refer to Division 07 section "Roof Accessories" for requirements for snow guards attached to metal roof panels.
2.6 SUBSTRATE BOARDS
A. Plywood Sheathing Board
1. Type and Thickness: Match existing, Regular, 1/2 inch min. CDX Type.
2. Existing condition and replacement of “damaged” sheathing shall be by Architect approval.
B. Substrate-Board Fasteners: Factory-coated steel fasteners, corrosion-resistant, designed for fastening substrate board to framing.
2.7 UNDERLAYMENT MATERIALS
A. Self-Adhering, High-Temperature Multilayer Laminated Underlayment Sheet: ICC-ES AC188 compliant high tensile strength sheet, minimum 25 mils thick minimum, consisting of polypropylene membrane with a slip-resisting top surface suitable for contact with metal roofing, and adhesive layer with release-paper backing.
1. Basis of Design Product: Kirsch Building Products, SharkSkin Ultra SA.
07 4113 - 6 METAL ROOF PANELS
2. UV Exposure Rating: 12 months.
3. Tensile Strength, ASTM D 226: 106 lbf/in, cross-machine direction.
4. Self-Sealability, ASTM D 1970: Pass.
5. Flame Spread, ASTM E 84: Class A.
2.8 FABRICATION
A. General: Provide fabricated and finished metal panels and metal panel accessories meeting performance requirements, indicated profiles, finishes, and structural requirements.
B. On-Site Fabrication: Fabricate metal panels on-site using manufacturer-approved portable roll-forming equipment. Fabricate according to equipment manufacturer's written instructions and to comply with details shown.
C. Form panels in continuous lengths for full length of detailed runs, except where otherwise indicated on approved shop drawings.
D. In-Seam Sealant: For panels installed at slopes less than 2 in 12, furnish panels with manufacturer's approved continuous joint sealant or hot melt sealant in panel seams.
E. Sheet Metal Flashing and Trim: Fabricate flashing and trim to comply with roof panel manufacturer's recommended profiles, approved shop drawings, and Project drawings. Form from materials matching metal panel substrate and finish.
2.9 FINISHES
A. Finishes, General: Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions.
B. Steel Panels and Accessories:
1. Fluoropolymer Two-Coat System: 0.2 – 0.3 mil primer with 0.7 - 0.8 mil 70 percent PVDF fluoropolymer color coat, AAMA 621.
2. Interior Finish: 0.5 mil total dry film thickness consisting of primer coat and wash coat of manufacturer's standard light-colored acrylic or polyester backer finish.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine metal roof panel system substrate and supports with Installer present. Inspect for erection tolerances and other conditions affecting metal panel installation.
1. Inspect metal panel support substrate to determine if support components are installed as indicated on approved shop drawings. Confirm presence of acceptable supports at recommended spacing to match installation requirements of metal roof panels.
2. Panel Support Tolerances: Confirm that panel supports are within tolerances acceptable to metal roof panel system manufacturer.
B. Examine roughing-in for items penetrating metal panels to verify actual locations of penetrations properly located in relation to seam locations of metal panels.
C. Correct out-of-tolerance work and other deficient conditions prior to proceeding with metal panel system installation.
3.2 PREPARATION
A. Substrate Board: Install substrate boards over roof substrate on entire roof surface. Attach with substrate-board fasteners.
1. Install substrate board with long joints in continuous straight lines, perpendicular to roof slopes with end joints staggered between rows. Tightly butt substrate boards together.
2. Comply with requirements for fire-rated construction.
B. Flashings: Provide flashings as required to complete metal roof panel system. Install in accordance with Division 07 section "Sheet Metal Flashing and Trim" and approved shop drawings.
07 4113 - 7 METAL ROOF PANELS
3.3 UNDERLAYMENT INSTALLATION
A. Sheet Underlayment: Comply with installation requirements of underlayment manufacturer.
Apply over entire roof surface, wrinkle free, in shingle fashion to shed water. Cover underlayment within specified period.
3.4 METAL PANEL INSTALLATION
A. Standing Seam Metal Roof Panels: Install weathertight metal panel system in accordance with manufacturer's written instructions, approved shop drawings, and project drawings. Install metal roof panels in orientation, sizes, and locations indicated, assuring that the roof is square, straight, flat and in-plane. Anchor panels and other components securely in place. Provide for thermal and structural movement.
B. Attach panels to supports using clips, screws, fasteners, and sealants recommended by manufacturer and indicated on approved shop drawings.
1. Fasten metal panels to plywood deck with concealed panel clips, fasteners, and insulation plates at each location indicated on approved shop drawings, with spacing and fasteners indicated.
2. Seamed Joint: Lap female side of panel over clip and male side of panel. Hand seam panels 90 degrees at clip locations and then use manufacturer-approved, motorized seamer so that clip and metal roof panel are completely engaged to a full 180 degrees.
3. Provide weatherproof jacks for pipe and conduit penetrating metal panels of types recommended by manufacturer.
4. Dissimilar Materials: Where elements of metal panel system will come into contact with dissimilar materials, treat faces and edges in contact with dissimilar materials as recommended by manufacturer.
3.5 ACCESSORY INSTALLATION
A. General: Install metal panel trim, flashing, and accessories using recommended fasteners and joint sealers, with positive anchorage to building, and with weather tight mounting. Coordinate installation with flashings and other components.
1. Install components required for a complete metal panel assembly, including trim, drip edges, copings, flashings, sealants, closure strips, and similar items.
2. Comply with details of assemblies utilized to establish compliance with performance requirements and manufacturer's written installation instructions.
3. Provide concealed fasteners except where noted on approved shop drawings.
4. Set units true to line and level as indicated. Install work with laps, joints, and seams that will be permanently weather resistant.
B. Install flashings to comply with metal roof panel manufacturer's and requirements specified in Division 07 Section "Sheet Metal Flashing and Trim."
C. Joint Sealers: Install joint sealers where indicated and where required for weathertight performance of metal panel assemblies, in accordance with manufacturer's written instructions.
1. Prepare joints and apply sealants per requirements of Division 07 Section "Joint Sealants."
D. Pipe Flashing: Form flashing around pipe penetration. Fasten and seal to metal roof panels as recommended by metal panel manufacturer.
E. Snow Guards: Refer to Division 07 section "Snow Guards." Attach snow guards to vertical ribs of standing seam metal roof panels with clamps or set screws in array recommended by snow guard manufacturer. Do not use fasteners that will penetrate metal roof panels.
3.6 CLEANING AND PROTECTION
A. Remove temporary protective films immediately in accordance with metal roof panel manufacturer's instructions. Clean finished surfaces as recommended by metal roof panel manufacturer.
B. Replace damaged panels and accessories that cannot be repaired to the satisfaction of the Architect.
END OF SECTION
751/23039
07 7200 - 1 ROOF ACCESSARIES
SECTION 07 7200
ROOF ACCESSORIES
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Snow guards.
1.02 RELATED REQUIREMENTS
A. Section 07 4113 – Standing Seam Metal Roofing.
1.03 REFERENCE STANDARDS
A. 29 CFR 1910.29 - Fall Protection Systems and Falling Object Protection - Criteria and Practices Current Edition.
B. ASTM B221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes 2021.
C. FM (AG) - FM Approval Guide current edition.
1.04 SUBMITTALS
A. See Section 01 3000 - Administrative Requirements for submittal procedures.
B. Product Data: Manufacturer's data sheets on each product to be used.
1. Preparation instructions and recommendations.
2. Storage and handling requirements and recommendations.
3. Installation methods.
4. Maintenance requirements.
C. Shop Drawings: Submit detailed layout developed for this project and provide dimensioned location and number for each type of roof accessory.
1. Non-penetrating Rooftop Supports: Submit design calculations for loadings and spacings.
2. Snow Guards: Submit design calculations for loadings and spacings based on manufacturer testing.
D. Warranty Documentation:
1. Submit manufacturer warranty.
2. Ensure that forms have been completed in Owner's name and registered with manufacturer.
1.05 DELIVERY, STORAGE, AND HANDLING
A. Store products in manufacturer's unopened packaging until ready for installation.
B. Store products under cover and elevated above grade.
1.06 WARRANTY
A. See Section 01 7800 - Closeout Submittals for additional warranty requirements.
B. Correct defective Work within a five year period after Date of Substantial Completion.
PART 2 PRODUCTS
2.01 SNOW GUARDS
A. Product: Basis of Design: Alpine SnowGuards: Model ASG4025; Morrisville, VT, Telephone- 888-7664273, info@alpinesnowguards.com
B. Two Pipe Type Snow Guard: Continuous snow guard; manufacturer's standard tube, set in brackets.
1. Brackets: 6000 series aluminum.
2. Tube: 6000 series aluminum, mill finish, (PP75).
a. Outside Diameter, Round: 1 inch, nominal.
b. Internal and concealed coupling 3” long (PPP86): 6000 series aluminum.
751/23039
07 7200 - 2 ROOF ACCESSARIES
c. End Collars and Caps: 6000 series aluminum (PP56).
3. Clamps for Standing Seam Roof: Aluminum clamps attached to standing seams of roof panels; for attachment of fence type snow guard. Alpine SnowGuard #ASG4025-AL, Double Lock.
a. Seam Profile: Mechanically seamed.
4. Products:
a. Alpine SnowGuards; www.alpinesnowguards.com
b. Berger Building Products; www.bergerbp.com.
c. LMCurbs; SnowGuard System: www.lmcurbs.com.
d. Metal Roof Innovations, Ltd. S-5! Attachment Solutions; DualGard: www.s-5.com.
e. PMC Industries, Inc; AceClamp - A2 Snow Retention System: www.aceclamp.com.
f. Rocky Mountain Snow Guards, Inc; Drift II Corrugated 2-Pipe Bolt-Down Fence-Style
Snow Guard Bracket: www.rockymountainsnowguards.com.
g. TRA Snow and Sun; C22Z Clamp-On: www.trasnowandsun.com.
h. Substitutions: See Section 01 6000 - Product Requirements.
PART 3 EXECUTION
3.01 EXAMINATION
A. Do not begin installation until substrates have been properly prepared.
B. If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.02 PREPARATION
A. Clean surfaces thoroughly prior to installation.
B. Prepare surfaces using methods recommended by manufacturer for achieving acceptable results for applicable substrate under project conditions.
3.03 INSTALLATION
A. Install in accordance with manufacturer's instructions, in manner that maintains roofing system weather-tight integrity.
END OF SECTION
| 751-23039_Addendum 1 |
| 751-23039_DC Spec_TOC |
| 751-23039_07 4113_Metal Roof Panels |
| 751-23039_07 7200_Roof Accessories |
File details come from the government source that posted it. Updated .