Roofing in Seattle with Synthetic Underlayment

 Why Roofing in Seattle requires Synthetic Underlayment


Seattle roofing can get crazy wet!  That’s because it rains in this place and sometime not just a little!  Every winter we deal with rain while roofing and it can be a real hassle!

When the roof finally gets installed it should protect you, but what type of protection do you have during the process?  What’s protecting you when the roof is actually being installed?

Most companies use traditional 30 lb felt paper to protect your home during the re-roof process.  There are a few issues with the typical felt used by most companies.  Water absorption is most definitely a problem.  Wrinkling is another.  And of course, nail penetrations can cause nice little leaks.  The footsteps around the nail or staple penetrations will be stressed causing traditional felt to tear and water leaks for occur.  This is not ideal for your home or the roofer.

The best line of defense is to use a synthetic felt like Diamond Deck from CertainTeed.  Pro Roofing uses Diamond Deck on all CertainTeed roofs we install to maximize the quality of the job.

Diamond Deck roofing felt

CertainTeed Diamond Deck Synthetic Underlayment by Pro Roofing NW

We’re not making a roof joke when we say we use only premium roofing materials on your home.  Simply call us for an up close look at the Diamond Deck felt.  We’ll bring a sample to your door so you can handle it and see why we use it.

Diamond Deck | Pro Roofing

Fastener used by Pro Roofing on Diamond Deck synthetic roofing felt


Diamond deck and Leak Barrier

Leak barrier and synthetic felt


Here are some FEATURES of the Diamond Deck:

Lightweight – Easy to work with and carry

Excellent 6-month UV stability – Finish the roof when the Seattle weather permits

Excellent tear resistance – Durability, reduced puncture risk

Superior wet/dry traction – We can work faster and safer

Cool gray surface color – More comfortable working environment
Synthetic Diamond Deck
CertainTeed’s Diamond Deck High Performance Synthetic Underlayment is manufactured to provide best-in-class performance in terms of both weather protection and contractor safety.

Diamond Deck is a synthetic, scrim-reinforced, water-resistant underlayment that can be used beneath shingle, shake, metal or slate roofing.  It has exceptional dimensional stability compared to standard felt underlayment.  Felt underlayment can wrinkle when it becomes wet and “telegraph” those wrinkles through to the shingle especially it is a thin shingle applied over the felt.  Diamond Deck eliminates this problem and its special top surface treatment provides excellent slip resistance, even when wet.

Pro Roofing of Seattle

CertainTeed Diamond Deck Roofing Felt

Diamond Deck’s 10 square roll (4-foot wide and 250-foot long) is easier to handle and faster to apply keeping you dry!

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