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TranSystems Corporation - LGM Construction

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501070099 Federal Express Oakland Sort Expansion Issued for Bid 10/11<br />

SECTION 07273 - AIR-BARRIERS<br />

PART 1 - GENERAL<br />

1.1 RELATED DOCUMENTS<br />

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and<br />

Division 1 Sections of these specifications, apply to this Section.<br />

1.2 SUMMARY<br />

A. Section includes vapor-retarding and vapor-permeable air-barriers.<br />

1. Vapor-retarding air-barriers at interior finishes at exterior walls.<br />

2. Vapor-retarding air-barriers at interior finishes at roof level.<br />

3. Vapor-permeable air-barriers at exterior skin of exterior walls and roof insulation.<br />

1.3 SUBMITTALS<br />

A. Product Data: For each type of product.<br />

B. Shop Drawings: For air-barrier assemblies.<br />

1. Include details for substrate joints and cracks, counterflashing, penetrations, inside and outside<br />

corners, terminations, and tie-ins with adjoining construction.<br />

C. Product certificates.<br />

D. Product test reports.<br />

1.4 QUALITY ASSURANCE<br />

A. Installer Qualifications: An entity that employs installers and supervisors who are trained and approved by<br />

manufacturer.<br />

B. Delivery and Storage: Deliver materials to project site in original packages with seals unbroken, labeled<br />

with manufacturer’s name, product, date of manufacture and directions for storage. Store materials in their<br />

original undamaged packages in a clean, dry protected location off of the ground and protected from<br />

exposure to direct sunlight. Re-package any unused material at the end of each day for future use as per<br />

manufacturer specifications.<br />

C. Single Source: Obtain air barrier materials from a single manufacturer regularly engaged in manufacturing<br />

the product.<br />

AIR-BARRIERS 07273 - 1

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