Underlayment is the invisible protector of a complete roofing system. It comes in various materials, but its job description remains the same in all regions
Today, Arrowhead Roofing, one of the top local residential and commercial roofing contractors, talks about the main purposes of roof underlayment to appreciate its importance.
Keeping the Roof Deck Dry From Wind-Driven Rain
The main role of underlayment is to serve as the last line of defense against rain. Installed between a roof deck and shingles, it prevents water from touching the material it covers to inhibit rot. The presence of underlayment matters because shingles can only do so much to block precipitation. Shingles aren’t nailed at all sides, so they always have gaps that can allow water to infiltrate what’s underneath them. Credentialed roofing contractors wil tell you that underlayment catches any drops of water that pass through the shingles, draining them until they reach the gutters and eventually the ground.
Allowing Shingles to Lay Flatter
The addition of underlayment enables installers to lay down shingles flatter and more uniformly. In addition to better aesthetics, this shingle arrangement helps reduce the chances of blow-off in the face of gusts and gales.
Aiding Moisture Removal
Breathable underlayment helps expel moisture coming from the attic, which could get trapped on the roof deck. Less moisture means lower chances of condensation, which is detrimental to building materials prone to decay or rust.
Unlocking Strong Warranty Protection
Leading manufacturers incentivize customers that choose a proper underlayment, particularly one that’s designed to work with the rest of the system. For instance, GAF considers Roof Deck Protection as one of the qualifying accessories to have a Lifetime Limited Warranty on the component.
Residential and commercial roofers know that there’s a wide range of underlayments on the market, so seek expert advice to pick the one that suits your chosen roofing system. Call (918) 743-9257 to schedule your appointment with Arrowhead Roofing and get a free estimate.