GAF Roof System

TimberlineHDZ Shingles

More homeowners in North America rely on Timberline® Shingles than any other brand. They offer just the right combination of beauty, performance, and reliability — and are the best value in roofing today.

Pro Start

Pre-cut eave/rake starter strips are one of the most overlooked parts of a roofing system!  That’s because some roofing contractors try to use a cut-up 3-tab strip shingle as the “starter” course on your roof.  Unfortunately, these cut-up shingles may not have properly positioned adhesive to help reduce the risk of shingle blow-off.  Pro-Start® Eave/Rake Starter Strips are made with a high-quality, properly positioned adhesive applied at the factory to help prevent shingle blow-off.  Plus, installers like that they’re easy to use with no cutting on the roof, while homeowners feel good about the fact that they create less waste.


By creating a barrier at the most vulnerable areas of your roof (at the eaves and rakes, in valleys, around chimneys, etc.), WeatherWatch® Leak Barrier will help prevent leaks due to water backing up in your gutters, wind-driven rain, and, in the North, damaging ice dams.  It will also protect your home from expensive wall and ceiling staining from leaks. WeatherWatch® Leak Barrier is a key part of the GAF Lifetime Roofing System.

Tiger Paw

A premium, UV-stabilized polypropylene underlayment that provides a critical extra layer of protection between your shingles and your roof deck.


A non-asphaltic, polypropylene roofing underlayment that helps to prevent wind-driven rain from infiltrating under the roof’s shingles.

Cobra RidgeRunner

Cobra® Ridge Runner® Exhaust Vent for Roof Ridge allows heat and moisture to escape at the ridge. It provides 12.5 sq. inches per linear foot (26,454 m2/lm) of net free ventilating area. The integral Weather Fighter™ Filter helps resist all types of weather infiltration.

GAF Timbertex Hip/Ridge

Add the perfect finishing touch for your new roof, a premium, distinctive ridge cap shingle.  Timbertex® Premium Ridge Cap Shingles offer excellent protection at high-stress areas of your roof (the hips and ridges). Its 12” (305 mm) wide design works with most ridge vents.  Timbertex® Premium Ridge Cap Shingles are a key part of the GAF Lifetime Roofing System1 and have earned the Good Housekeeping Seal