What Lies Beneath: The Essential Layer of Roof Underlayment

roof underlaymentEvery homeowner wants to make sure that their roof functions well and provides the utmost in protection. And this is the time of year when issues around leaking and water damage can begin to arise.

Most people tend to focus only on the visible aspects of a structure, not really thinking about what goes on beneath. True to the old “out of sight, out of mind” adage, it’s no different when it comes to roofing. What most homeowners tend to think about when discussing roof replacement of any kind is the uppermost, evident layer; they are often more concerned more with good looks than the role of what can’t be seen.

Right below the surface, however, sits one of the most important components of any roof system.

What is Roof Underlayment?

In the most basic sense, roof underlayment is the layer of material that sits between the roof structure and its final covering, such as shakes, shingles or tile. While good shingling and flashing installation is extremely important, also having a high quality, appropriate roof underlayment to go with it can make all the difference. This protects roof beams from water damage, thereby reducing the chance of leaks and rot due to moisture infiltration.

Traditionally, an asphalt-saturated building paper functioned as the primary weather barrier between roofing materials and the roof structure itself. These days, there are a number of other options for roof underlayment material, from rubberized asphalt to fibreglass. The best underlayment will prevent moisture and both hot and cold uncomfortable temperature extremes from entering your home, as well as give your roof a longer life.

The right kind of roof underlayment material for the job is specifically selected by roofing company experts and might be made of:

  • Rubber-based asphalt
  • Plastic polymers
  • Fibreglass
  • Synthetic materials

Roof Underlayment is a Real Necessity

roof underlaymentRoof underlayment isn’t worried about being pretty, as long as it does its job well. This inconspicuous layer is integral to the soundness of the roof overall and should be wisely chosen and properly applied, preferably by certified professionals, before the rest of the roof can be installed. Experienced Vancouver roofers will have good knowledge about roof underlayment, including types of materials and the application process itself.

Having good quality, correctly installed roof underlayment helps to safeguard against multiple potential roof issues, meaning that a homeowner will likely be spending less in the long run on maintenance and repairs.


vancouver-rooferAs a renovator Doug did many rot repairs which gave him a good understanding of where and why buildings leak, and how to prevent it. He realized the need for a different approach to roofing; one that educated the customer enough to make good decisions. With better trained installers and a quality inspection process Absolute Roof Solutions was born…” Read more.

Creative Commons Attribution: Permission is granted to repost this article in its entirety with credit to ABSOLUTE ROOF SOLUTIONS.