B08_Attachment_2-Specifications-Tyvek.pdf

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Attached to
Glacier National Park-Purchase STP Cabin Materials Federal contract opportunity
Solicitation number
140P1425Q0050
Issued by
Department of the Interior National Park Service Intermountain Region

About this file

This document is a Product and System Specifications sheet for DuPont™ Tyvek® HomeWrap®, dated March 2009, detailing technical specifications for a building weather barrier material. The specifications outline comprehensive performance characteristics including air penetration (< 0.004 cfm/ft2), water vapor transmission (56 perms), water penetration resistance (250 cm), and surface burning characteristics (Class A). The material is a spunbonded polyolefin, non-woven and non-perforated weather barrier with key technical attributes such as a basis weight of 1.8 oz/yd2, tensile strength of 30/30 lbs/in, and tear resistance of 8/6 lbs, tested in accordance with various ASTM and TAPPI testing methods.

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Text version

DuPont Building Innovations March 2009 4417 Lancaster Pike Chestnut Run Plaza 721 Wilmington, DE 19805 1-800-448-9835 www.construction.TYVEK.com

Product and System Specifications DuPont™ Tyvek® HomeWrap®

2.2 MATERIALS

A. Basis of Design: spunbonded polyolefin, non-woven, non-perforated, weather barrier is based upon DuPont™ Tyvek® HomeWrap® and related assembly components.

B. Performance Characteristics:

1. Air Penetration: <.004 cfm/ft2 at 1.57 psf, when tested in accordance with ASTM

E2178. Type I per ASTM E1677.

2. Water Vapor Transmission: 56 perms, when tested in accordance with ASTM E96-05, Method A.

3. Water Penetration Resistance: 250 cm when tested in accordance with AATCC Test

Method 127.

4. Basis Weight: 1.8 oz/yd2, when tested in accordance with TAPPI Test Method T-410.

5. Air Resistance: 1200 seconds, when tested in accordance with TAPPI Test Method T-

460.

6. Tensile Strength: 30/30 lbs/in., when tested in accordance with ASTM D882.

7. Tear Resistance: 8/6 lbs, when tested in accordance with ASTM D1117.

8. Surface Burning Characteristics: Class A, when tested in accordance with ASTM E84.

Flame Spread: 15, Smoke Developed: 15

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