GCP invented fully-adhered roofing underlayments more than 35-years ago. Grace Ice and Water Shield fully-adhered smooth surface roofing underlayment provides best in class roof leak protection against wind driven rain and ice dams. Grace Ice and Water Shield roofing underlayment, a registered trademark of GCP Applied Technologies, is the name that contractors trust the most to protect their reputations.
Strong adhesion to the roof deck: helps ensure watertight seal, protecting roofs from harsh weather conditions
High quality seal around roofing nails: delivers best in class roof leak protection, providing peace of mind against costly call backs
Forms superior laps: helps ensure a watertight installation with no special treatment of the laps
Ripcord split release on demand: makes it easier to waterproof detail areas such as valleys, chimneys, roof to wall transitions
Longest performance history: with over 35-years of performance history, Grace ice and water shield roofing underlayment offers the highest confidence for the life of the roof
Protects roofs from wind driven rain and ice dams
Versatile - suitable for use under most rood coverings, including asphalt shingles mechanically attached tiles and most standing seam metal roofs
36 in. x 75 ft. size provides 225 sq. ft. of coverage
Underwriters laboratories inc, class a fire classification under fiber-glass shingles and class C under organic felt shingles (per ASTM E108/UL 790)
Includes a release paper safety cutter, which will make it easier to score and shape and tear the underlayment for quick installation
This stuff is exactly what I was looking for to re-roof a small building. It has great weight and tackiness, and cuts easily with a utility knife. I hadn't used this before, and for my shed job, I also used it in smaller widths. Working in some tight areas, it also did well as a 'spot sealer'. The Release Paper Safety Cutter was very handy
Jun 2, 2021
Ok so a few pointers. DO NOT ATTEMPT TO APPLY...
Ok so a few pointers. DO NOT ATTEMPT TO APPLY IN THE HEAT! There’s a 1/4” strip of asphalt rubber on both sides that easily sticks when heated. And if you manage to get the underside stuck to itself, you definitely have to rip it up and start over. Also, the ripcord is very difficult to find. It is very small and it’s embedded IN the asphalt rubber. May take you some time rooting around to find it. However, it sticks well and looks like it will do the job right. Just a real pain to install.
WeatherWatch 200 sq. ft. Mineral-Surfaced Peel and Stick Roof Leak Barrier Roll
This quality GAF Leak Barrier helps keepThis quality GAF Leak Barrier helps keep water out of the most vulnerable areas of your roof, including the eaves, rakes, valleys and around the chimneys. It helps prevent costly repairs to your home by helping to protect your home from wall or ceiling staining, which can be caused by wind-driven rain and, in colder areas, damaging ice dams. WeatherWatch protects against ice dams is required at eaves by many building codes wherever the January average temperature is 25°F or lower or where there is a possibility of ice forming in the eaves (Check local building codes for specifications in your area).See Full Product Description
Grace Ice and Water Shield HT 36 in. x 75 ft. Roll Self-Adhered Roofing Underlayment (225 sq. ft.)
Grace Ice and Water Shield HT fully-adhered,Grace Ice and Water Shield HT fully-adhered, smooth surface roofing underlayment is specifically designed for high temperature applications such as metal and tile roofs. It delivers all the advantages of Grace Ice and Water Shield roofing underlayment with thermal stability metal and tile roofs require. Not all high temperature roofing underlayments are the same. Grace Ice and Water Shield HT is an excellent high temperature ice and water barrier that follows in the footsteps of the original Ice and Water Shield, but is specially formulated to meet the higher service temperatures that are inherent to metal and tile roofs. The proprietary adhesive if formulated with a temperature resistance of up to 260°F. The peel and stick membrane forms a watertight bond to the roof deck, and seals around the primary roof covering fasteners to protect the roof deck from water intrusion. It also creates a strong bond to the roof deck. Grace Ice and Water Shield HT peel and stick roofing underlayment delivers an optimal balance of adhesion and thermal stability for superior performance under the most demanding roof types, such as metal and tile roofs.See Full Product Description