5/18/2023 0 Comments Stapled roof![]() ![]() But it’s important to understand that cap nails should only be used for securing roofing underlayment. Both options often depend on the slope of the roof itself.Ĭap nails are typically made of steel and feature a plastic cap to prevent roof leaks, hence their name. Others will tell you that cap nails are more effective. Many roofers will tell you that staples are fine for installing the synthetic underlayment. When it comes to determining the appropriate method of securing synthetic underlayment, the same holds true. Modern synthetic underlayment provides some added protection to homeowners many are designed to shed water, and others are able to withstand extreme UV exposure time.Īs in any industry, if you ask several professionals about a particular subject, you might get several different answers. Underlayment must retain its watertight integrity through all types of weather, including high winds and wind-driven rain. Now to the questions at hand: Can staples be used to install synthetic underlayment? Or is it better to use cap nails? Which is better for underlayment that is going to be left exposed for an extended period of time? Contractors are especially attuned to the benefits of synthetic underlayments, helping drive what Avitabile calls the “exponential growth” in the use of synthetics. Today, there is an endless array of synthetic underlayment brands available, with more coming every day.”Ī major factor driving an increase in synthetic underlayment applications is the enhanced walkability that the material permits in both wet and dry roofing conditions. “In the early 2000s,” writes Jeff Avitabile, a GAF product manager, “there were a handful of synthetic underlayment products all trying to wrestle a sliver of the market away from asphalt felts. Synthetic underlayments are increasingly the material of choice for professional roofers and builders. They’re coated with asphalt to help repel water.įor the purposes of our blog discussion today, we’re going to focus on the synthetic underlayment. Underlayments are either made out of natural materials - wood cellulose, for example - or synthetics, such as fiberglass and polyester. “It provides temporary weather protection until the tile is installed, and it provides a secondary weatherproofing barrier should moisture migrate below the tile.”Īdditionally, underlayment is used to comply with local building codes and to help keep dirt, dust, and bugs out of the building. “An underlayment performs two primary functions,” the NRCA has written. Underlayment, also known as roofing felt or tar paper, is a layer of protection that roofers install between your roofing deck and the roofing shingles or tiles.įor many years, trade organizations like the National Roofing Contractors Association (NRCA) have recommended the use of underlayments with tile roof systems. ![]()
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