23 07 00_Mech Insulation.pdf
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- Solicitation number
- S-P10100-00000407
- Issued by
- Douglas County, Oregon
About this file
This document is a specification for HVAC insulation for a Roseburg High School wood shop project in Oregon. The insulation requirements include flexible elastomeric insulation with an R-value of 4.0 minimum per inch for exterior ductwork, with a 0.016" aluminum jacket. The insulation must meet fire and smoke hazard rating requirements. The project is part of a larger state and local contract opportunity, 21-701 ROSEBURG HIGH SCHOOL DUST COLLECTION SYSTEM, which involves Douglas County, Oregon.
The specification outlines the standards for acceptable insulation manufacturers and accessories. It also details the ductwork to be insulated, requiring R-8 insulation for all supply and exhaust ducts located on the exterior of the insulated building envelope and all outside air intake ducts. Installation requirements, such as sealing seams and penetrations, are also provided.
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Text version
SECTION 23 07 00
HVAC INSULATION
May 2021 Roseburg High School Wood Shop 23 07 00 - 1
PART 1 - GENERAL
1.01 DESCRIPTION
A. The requirements of this section apply to the insulation of mechanical equipment specified elsewhere in these specifications.
B. Related Work: The requirements of Section 23 05 00, Common HVAC Materials and
Methods, also apply to this section.
1.02 QUALITY ASSURANCE
A. Insulation Thickness and Thermal Performance: Comply with provisions of the State of Oregon Energy Code.
B. Composite (Insulation, Jacket or Facing and Adhesives) Fire and Smoke Hazard Ratings:
Not to exceed a flame spread of 25 or smoke development of 50 and containing less than 0.1% by weight deca-PDE fire retardant.
C. Component Ratings of Accessories (Adhesives, Mastics, Cements, Tapes, Finishing
Cloth for Fittings): Same as “B” requirements above and permanently treated. No water soluble treatments.
1.03 PRODUCT DELIVERY, STORAGE AND HANDLING
A. General: In addition to the requirements specified in Section 23 05 00, the following apply:
1. Deliver insulation, coverings, cements, adhesives and coatings to the site in factory-fabricated containers with the manufacturer's stamp or label affixed showing fire hazard ratings of the products. Store insulation in original wrappings and protect from weather and construction traffic.
2. Protect insulation against dirt, water, chemical and mechanical damage. Do not install damaged insulation. Remove such insulation from project site.
1.04 SUBMITTALS
A. Submit catalog data and performance characteristics for each product specified.
PART 2 - PRODUCTS
2.01 ACCEPTABLE MANUFACTURERS
A. Insulating Manufacturers: Aeroflex, Armacell or approved.
B. Adhesive Manufacturers: As approved or recommended by insulation manufacture.
2.02 DUCT INSULATION
A. Exterior Above Grade Ductwork: Flexible elastomeric insulation with R-value of 4.0 minimum per inch. Armacell AP Series or equal. Install with 0.016" aluminum jacket.
2.03 INSULATION ACCESSORIES
May 2021 Roseburg High School Wood Shop 23 07 00 - 2
A. Insulation Compounds and Materials: Provide rivets, staples, bands, adhesives, cements, coatings, sealers, welded studs, etc., as recommended by the manufacturers for the insulation and conditions specified except staples not permitted on chilled water lines.
PART 3 - EXECUTION
3.01 DUCTWORK INSULATION
A. Ductwork: Insulate the following:
1. All exhaust and supply ductwork exposed to exterior temperatures.
2. Sound traps.
3. Fan enclosures.
B. Insulation Thickness: Select board and blanket insulation of thickness required to provide the following installed R-value.
1. All supply and exhaust ducts located on the exterior of the insulated building envelope and all outside air intake ducts.
a. R-8
C. Fittings: Wire and duct adhesive as required. To prevent sagging on all rectangular or square ducts over 24" wide, install Gramweld or equal welding pins on the bottom.
Maximum spacing 18" on center in both directions.
D. Installation: Applied with butt joints, all seams sealed with vapor seal mastic or taped with 2" wide vapor-proof, pressure-sensitive tape. Seal all penetrations with vapor barrier adhesive.
E. Insure all seems in the external aluminum jacket are on the side or bottom of the duct.
Lap edges to ensure moisture drains away from the insulation. Attach with bands.
Screws are only allowed on the bottom of the ducts.
END OF SECTION
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