DuPont Tyvek Roof Protector Underlayment - 42" x 286'


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Four-layer construction. Top layer provides good grip, lamination layer acts as a barrier to water, woven polypropylene scrim provides strength, and slip-resistant coating provides grip to the roof deck

Ideal for for sloped (>= 2:12) commercial and residential roofs and roofing applications under asphalt shingles or metal cladding

Designed to lay flat and stay flat

2" chalk mark guide lines make installation go quickly

Preserves the roof deck during install and provides an effective secondary moisture barrier

Superior tear resistance compared to roofing felt for increased durability

Lightweight for easy handling and installation

UV exposure 90 days


DuPont Roof Protector is an engineered synthetic roofing underlayment with a high strength to weight ratio. The four-layer construction allows for excellent grip to the deck, strength of the product to minimize tearing at the fastener points, and good gripability for slip resistance.

With 10 squares in every roll, DuPont Roof Protector allows for maximum roof coverage and efficient installation-making it easier to install than roofing felt. As a result, there are fewer overlaps, seams and fasteners, which helps reduce both labor and waste. Superior durability combined with higher thermal stability than roofing felt, enables DuPont Roof Protector to stand up to the toughest conditions.


Manufacturer DuPont Tyvek
Brand DuPont Tyvek
Sub Brand Roof Protector
Code Approval ICC-ES AC188, per Intertek CCRR-1087 ASTM D226
Coverage 10 Square
Installation Temperature -40 Degrees F to 240 Degrees F
Moisture Vapor Permeance .05
Package Quantity 1
Rating Class A Fire Rating
Recommended Materials 1-inch diameter (min) metal or plastic cap-nails or 16-gauge (min) cap-staples driven flush with the roof deck surface. Nails and staple legs must be a minimum of 3/4 inch long.
Returnable Yes
Tear Resistance MD: 25 lbf, CD: 40 lbf
Tensile Strength (PSI) MD: 102 lbf, CD: 90 lbf
Ultraviolet Protection 90 Days
Warranty 20-Year Limited
Quick ID Q28733
UPC 083014403821

Weights and Dimensions

Weight (Pounds) 21.4
Dimensions 42" x 286' (10 Square)
Length (Feet) 286
Thickness (Inches) .254 mm or 10 mils
Width (Inches) 42

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