The underlayment is a component applied between the sheathing and the shingles. It serves as a moisture barrier, providing an extra layer of protection from the elements. Honestly speaking, you can go without it, and nail asphalt shingles directly onto decking boards. However, forgoing the use of an underlayment isn’t wise. Without a high-quality, properly installed underlayment, your roof could completely fail after just a few years.
When you buy a roof, you know it’s not going to last forever, but it can also fail too early. The real tragedy, however, is that the cause can void the product warranty and lead to insurance claim denial.
Leaks are the most common problem your roof will experience, and they’re usually the cause or consequence of more serious concerns. There are many ways your roof can leak, such as when there is a gradual loss of the roofing material’s effectiveness to weather damage.
Your roof is a complicated system with several parts and layers. One of the most important layers is the underlayment. The underlayment protects the roof deck from damage and is one of your home’s best defenses against roof leaks. Homecraft®, one of the top roofers in our area, talks about the purpose of the underlayment:
Roofing projects are highly technical endeavors that should never be entrusted to just anybody. If you hire a non-certified – or worse – an unlicensed contractor for the job, the following mistakes are likely to result in bigger problems down the road: [Read more…]