Underlayments For Metal Roofing

However contractors now recognize the benefits of synthetic underlayment for metal roofing particularly when it comes to its tolerance to heat and ultraviolet uv radiation.

Underlayments for metal roofing.

The synthetic type is a relatively newer technology and is made by spinning together polyethylene or polypropylene with a polymer. Make sure the product is designed to be used under metal. When hot roof construction is done a roof with no ventilation a breathable underlayment is recommended. The traditional and most common material used for roof underlayment on a steep slope metal roof is non perforated asphalt impregnated felt underlayment.

This type of underlayment is critical to a quality roof installation. Our synthetic underlayment is 20 times stronger than felt it won t rip or tear and it won t buckle when wet. Synthetic underlayment heat and uv resistance. Synthetic underlayment is a roofing accessory created by weaving spinning together polypropylene or polyethylene and a polymer to form an all over protective barrier to put between the roofing material and the roof deck.

It s about 10 times lighter than felt so it goes up faster and puts less weight and stress on your roof. Once again this is used on cold roof construction. It serves as a moisture barrier as well as a slip sheet. Shingles for example are just the first line of defense against elemental damages.

There are two types of underlayment for a metal roof felt paper and synthetic each with its pros and cons. It s a better and more advanced metal roof underlayment. Underlayment must also act as a secondary weather barrier in case the roof fails. Underlayment is the final weather barrier between your finished roofing and your roof s raw plywood.

There are several types of felt underlayment including both organic reinforced and inorganic reinforced. The temperature under a metal roof can get very high. In addition to choosing roofing materials you should also consider roofing underlayment.