WeatherLock® Cold Climate Waterproofing Underlayment is a dual-layer product designed for cold weather adhesion and flexibility, featuring a durable fiberglass mat and a removable backing. It meets various construction standards and provides essential waterproofing benefits for roofing applications. The product specifications include a roll length of 50 ft, width of 3 ft, and a nominal thickness of 55 mils.

1. WeatherLock®
Cold Climate
Waterproofing Underlayment with Dual-Layer Composition
WeatherLock®
Cold Climate waterproofing underlayment is designed
for cold weather adhesion and flexibility.
Valleys
Eaves
WeatherLock®
Cold Climate
Waterproofing Underlayment

2. OWENS CORNING ROOFING AND ASPHALT, LLC
ONE OWENS CORNING PARKWAY
TOLEDO, OHIO, USA 43659
1-800-GET-PINK™
www.owenscorning.com
Pub. No. 102478-C. Printed in U.S.A. April 2009. THE PINK PANTHER™ &
©1964–2009Metro-Goldwyn-MayerStudiosInc.AllRightsReserved.Thecolor
PINK is a registered trademark of Owens Corning. ©2009 Owens Corning.
Construction
Surface
Granulated asphalt surface
Interior Reinforcement
Durable Fiberglas®
mat
Adhesive Styrene
Mixture of Styrene-Butadiene-Styrene (SBS) and asphalt
Removable Backing
Split-sheet peel-away backer sheet
Typical Values*
Property 1.5 sq. roll
Length 50 ft. (15.24 m)
Width 3 ft. (.91 m)
Area 150 sq. ft. (13.9 m2
)
Nominal Thickness 55 mils
Weight 54 lbs.
Applicable Standards and Codes
ASTM D 1970
IBC 2003
IRC 2003
UL Class A
UL Class C
The benefits of a healthy roof
a. VentSure®
Ventilation Products.
b. Hip & Ridge Shingles.
c. WeatherLock®
Waterproofing Underlayment Products.
d. Owens Corning Shingles.
e. Owens Corning Starter Shingle Products.
f. Owens Corning Undereave Ventilation Products.
a b
c
d
e
f