Attachment 7 - 079100 Section Wall Joint Seal.pdf
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This document is a technical specification section (Section 07 91 00) for Exterior Wall Joint Seals for a Repair & Abate project at the Sector Southeast New England location in Woods Hole, Massachusetts. The specification details requirements for preformed, precompressed, expanding foam joint seals used in exterior wall expansion joints, with specific performance criteria including fire protection (1-hour rating), movement capability of plus/minus 50%, sound transmission ratings (STC 62, OITC 52), and excellent air and water penetration resistance.
Approved manufacturers include Emseal (A Sika Company), MM Systems Corporation, Pecora Corporation, and Willseal LLC (Tremco CPG). The exterior wall joint seal must be silicone-coated, ultraviolet resistant, dual-faced, and packaged in shrink-wrap. Key technical requirements include an R-value of 1.03 per inch, maximum air permeability of 0.02 liters per second per square meter, no water penetration at 5000 Pa, and no deflection under wind loads up to 200 MPH. Additional specifications cover adhesive type, silicone corner bead, and intumescent sealant, with color to be selected from the manufacturer's full range.
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Text version
REPAIR &
ABATE BMF
P7626344
SECTOR SOUTHEAST NEW ENGLAND
WOODS HOLE, MA
SECTION 07 91 00 Page 1
SECTION 07 91 00
EXTERIOR WALL JOINT SEALS
PART 1 GENERAL
1.1 SUMMARY
A. Section Includes:
1. Preformed, precompressed, expanding foam joint seals for expansion joints in exterior walls.
B. Related Sections:
1. Division 01: Administrative, procedural, and temporary work requirements.
1.2 SUBMITTALS
A. Action Submittals:
1. Shop Drawings:
a. Indicate joint locations, dimensions, and adjacent construction.
b. Provide details for transitions in plane and direction for continuity of seal through watertight transitions from wall expansion joint to other interfacing expansion joint systems at adjacent construction.
2. Product Data: Material description and application instructions.
3. Samples:
a. Minimum 2 x 2 inch joint seal samples showing available colors.
b. Minimum 6 inch long samples of each joint seal.
B. Informational Submittals:
1. Manufacturer’s certification that:
a. Products are capable of withstanding temperature of 150 degrees F (65 degrees C) for 3 hours while compressed to minimum of movement capability dimension without evidence of bleeding of impregnation medium from material.
b. Same material after heat stability test and after cooling to room temperature will self-expand to maximum of movement capability dimension within 24 hours at 68 degrees F (20 degrees C).
P7626344
SECTOR SOUTHEAST NEW ENGLAND
WOODS HOLE, MA
SECTION 07 91 00 Page 2
1.3 QUALITY ASSURANCE
A. Manufacturer Qualifications:
1. Minimum 10 years documented experience in production of specified materials.
B. Installer Qualifications: Minimum 2 years documented experience in work of this Section.
1.4 DELIVERY, STORAGE AND HANDLING
A. In accordance with manufacturer’s instructions.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the work include, but are not limited to, the following:
1. Emseal, A Sika Company
2. MM Systems Corporation
3. Pecora Corporation
4. Willseal LLC, part of Tremco CPG
2.2 MATERIALS
A. Exterior Wall Joint Seal:
1. Description: Silicone coated, ultraviolet resistant, dual-faced, fire-rated, watertight primary wall seal.
2. Form: Precompressed to less than design joint size, packaged in shrink-wrap packaging.
3. Fire protection rating: 1 hour, tested to UL 2079.
4. Movement capability: Plus and minus 50% (total 100%) of nominal material size.
5. R-value: 1.03 per inch depth at nominal joint size compression, tested to ASTM C518.
6. STC rating: 62 in STC 68 wall, tested to ASTM E90.
7. OITC rating: 52 in OITC 52 wall, tested to ASTM E90.
8. Air permeability: Maximum 0.02 liter per second per square meter, tested to ASTM E283 at 75 Pa.
9. Water penetration: No water penetration, tested to ASTM E331 at 5000 Pa test pressure.
10. Wind loading: No deflection, tested to ASTM E330 at 4954 Pa or 200 MPH wind.
P7626344
SECTOR SOUTHEAST NEW ENGLAND
WOODS HOLE, MA
SECTION 07 91 00 Page 3
11. VOC Emissions: CDPH-1.2-2017: Pass
12. Color: To be selected from the manufacturer’s full range of colors.
13. Adhesive: Epoxy type, furnished by joint seal manufacturer.
14. Silicone: Field applied corner bead at face of seal to substrate interface, furnished by joint seal manufacturer, in same material and color as used in factory coating.
a. Abrasion Resistance: Less than 1% weight loss, tested to
ASTM D4060
b. Fuel Resistance: Pass, tested to ASTM C719/C1135
15. Intumescent Sealant: Field applied to face of joints, furnished by joint seal manufacturer.
PART 3 EXECUTION
3.1 PREPARATION
A. Clean joints thoroughly; remove loose and foreign matter that could impair adhesion or performance.
3.2 INSTALLATION
A. Remove joint seal from precompressed packaging, immediately insert into joint, and allow to expand.
B. Use temporary retainers if required to maintain joint seals in position until expansion is complete.
END OF SECTION
File details come from the government source that posted it. Updated .