Waterproofing and Weather Barriers │Grace Residential
Sign In

Construction Products

Quick Links
​​​​​​ As seen on TV - This Old House
​​ Vycor enV-S Superior Energy Effciency

Premium Protection. Superior Energy Efficiency. Serious Savings.

Help homeowners reduce their annual heating and cooling costs when you use  Vycor® enV-S™ Self-Ahered Weather Resistive Barrier.


Grace Residential Weather Barrier Product Catalog​ ​

GCP Residential Weather Barriers Product Catalog


Waterproofing and Weather Barriers 

Extreme weather is the new normal, so "building as usual" is no longer an option. Every home must be constructed to withstand wind-driven rain, snow, ice and everything else that Mother Nature brings. Therefore, it is critical to make sure a home is waterproofed, especially during initial construction. GCP Applied Technologies has a vas​t portfoli​​​​​​​o of waterproofing and weather barriers that will bring you the peace of mind knowing that your home and valuables are safe, dry and protected.

GCP provides multiple waterproofing and weather barrier products to fully protect a home. From the roof to the basement, each area needs to be waterproofed and protected. We have a wide variety of roofing underlayments that can be used for all types of roofs and environments. Whether it is a self-adhered or mechanically-attached underlayment, GCP has the products to keep the roof safe from the elements. In difficult to protect detail areas, such as windows and doors, we offer a line of flashings that can be used to fu​lly waterproof and protect the home. In addition, GCP's line of weather barriers is second to none, and not only protects the home, but also increases the energy efficiency as well. By providing another layer of protection, our underlayments and weather resistive barriers keep the home comfortable and dry. By combining the roofing underlayments, weather barriers and flashings GCP is able to offer a full Weather Protection System.

GCP--and its predecessor company, Grace--has been the name contractors have trusted when building homes for almost 50 years. With a proven track record and high-quality products, GCP continues to be the leader in providing superior waterproofing and weather protection systems today. GCP has been striving to deliver new and innovative products to better protect homes from extreme weather. It began with Grace Ice and Water Shield® and continues today with Vycor® weather barrier systems. Whatever the next great improvement in residential weather protection is, you can count on GCP Applied Technologies to get the job done.

From the basement and foundation to the windows, doors and roof, GCP has you protected with high performance waterproofing and weather barriers. Build with GCP Weather Protection Systems and have the confidence that no matter what the weather condition is, your home, business and family are safely protected by GCP.  

Grace-branded documents

The familiar Grace brand will continue to appear on GCP documents until we complete our rebranding.  Until then, Grace-branded documents are accurate representations of GCP Applied Technologies products.


New Webinar: Advancements in
Weather Resistive Barrier Sheets

With stricter air leakage code requirements and customers demanding higher energy efficiency, choosing the right of weather resistive barrier for residential houses is critically important. Learn more about the benefits of fully-adhered weather resistive barriers by watching this webinar from 30-year construction veteran, Mike Sloggatt, presented by Hanley Wood.




Bituthene® 4000 Systemhttps://gcpat.com/construction/en-us/residential-building-materials/Bituthene-System-4000Bituthene® 4000 SystemSelf-adhesive below grade waterproofing membrane. Comes with patented System 4000 primer in each box.
Florprufe® 120https://gcpat.com/construction/en-us/residential-building-materials/Florprufe-120Florprufe® 120Florprufe® vapor barrier uses Advanced Bond Technology™ to bond to the underside of concrete slabs, and protect moisture sensitive floors.
Grace Basik®https://gcpat.com/construction/en-us/residential-building-materials/Grace-BasikGrace Basik®Granular surfaced, self-adhered underlayment that meets code-based standards of protection.
Grace Ice & Water Shield®https://gcpat.com/construction/en-us/residential-building-materials/Grace-Ice-And-Water-ShieldGrace Ice & Water Shield®Grace Ice & Water Shield® has been the leading roof underlayment for more than 35 years. Trust only the original Ice & Water Shield®
Grace Ice & Water Shield® HThttps://gcpat.com/construction/en-us/residential-building-materials/Grace-Ice-and-Water-Shield-HTGrace Ice & Water Shield® HTGrace Ice & Water Shield® HT has been formulated with an adhesive with increased thermal stability to meet the challenges inherent in metal roofs
Grace Roof Detail Membrane™https://gcpat.com/construction/en-us/residential-building-materials/-Grace-Ice--Water-Shield-Detail-MembraneGrace Roof Detail Membrane™Specifically designed for waterproofing critical roof details. Flexible and conforms to most details. Available in 9 and 18 inch widths.
Grace Select™ Roofing Underlaymenthttps://gcpat.com/construction/en-us/residential-building-materials/Select-Roofing-UnderlaymentGrace Select™ Roofing UnderlaymentGrace Select™ Roofing underlayment is the performance alternative to granular surfaced underlayments.
Grace Ultra™https://gcpat.com/construction/en-us/residential-building-materials/Grace-Ice--Water-Shield-UltraGrace Ultra™Butyl rubber based roof underlayment designed to perform in the most extreme temperature conditions. Perfect for use with copper, corr-tenn and zinc roofing.
Tri-Flex® 15https://gcpat.com/construction/en-us/residential-building-materials/Tri-Flex-15__0Tri-Flex® 15NEW! - Mechanically-attached, synthetic underlayment with 10x the strength of #15 felt. A 10 sq roll weighs one-third as much as a 4 sq roll of felt.
Tri-Flex® XThttps://gcpat.com/construction/en-us/residential-building-materials/Tri-Flex-XT__0Tri-Flex® XTNEW; With Superior Slip Resistance! - Mechanically-attached roofing underlayment with five times more coverage and 20 times more strength than #30 felt. Up to 6 month exposure.
VYCORner®https://gcpat.com/construction/en-us/residential-building-materials/VYCORnerVYCORner®Pre-fabricated plastic corners. When used in conjunction with Vycor flashings, they make flashing installation faster and easier.
Vycor Deck Protector®https://gcpat.com/construction/en-us/residential-building-materials/Vycor-Deck-ProtectorVycor Deck Protector®Self-adhered deck flashing membrane that protects the deck structure and fasteners against damaging rot and corrosion.
Vycor® Aluminum Flashinghttps://gcpat.com/construction/en-us/residential-building-materials/Vycor-Aluminum-FlashingVycor® Aluminum FlashingAluminum surfaced, Self-adhered flashing designed for extended exposure conditions. Available in 4 and 6 inch widths.
Vycor® PROhttps://gcpat.com/construction/en-us/residential-building-materials/Grace-Vycor-PROVycor® PROVycor® PRO is a self-adhering flashing composed of durable engineerd polypropropylene sheet, paired with an aggressive, non-asphaltic, butyl-modified adhesive that seals and adheres
Vycor® Plushttps://gcpat.com/construction/en-us/residential-building-materials/Vycor-PlusVycor® PlusSuperior flashing ideal for sealing around windows, doors, joints, seams, holes, and other unwanted openings in wall sheathing systems.
Vycor® V40https://gcpat.com/construction/en-us/residential-building-materials/Vycor-V40Vycor® V4040 mil thick version of Vycor® Flashing. Available up to 36 inch widths.
Vycor® enV-S™https://gcpat.com/construction/en-us/residential-building-materials/Vycor-enV-SVycor® enV-S™Breathable, self-adhered membrane that outperforms housewraps. Protects against air and water leakage and helps reduce energy costs.
Vycor® enV™https://gcpat.com/construction/en-us/residential-building-materials/Vycor-enV__0Vycor® enV™Roll or spray-applied breathable air and water barrier provide seamless protection that cannot be met by conventional housewraps.