Underlayments For Metal Roofing

The synthetic type is a relatively newer technology and is made by spinning together polyethylene or polypropylene with a polymer.

Underlayments for metal roofing.

There are two types of underlayment for a metal roof felt paper and synthetic each with its pros and cons. Underlayment is the final weather barrier between your finished roofing and your roof s raw plywood. Synthetic underlayment is a newer innovation that is taking over the metal roofing industry as a better more advanced replacement for felt underlayment. 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. Underlayment must also act as a secondary weather barrier in case the roof fails. Make sure the product is designed to be used under metal. Shingles for example are just the first line of defense against elemental damages.

It s a better and more advanced metal roof underlayment. In addition to choosing roofing materials you should also consider roofing underlayment. 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. When hot roof construction is done a roof with no ventilation a breathable underlayment is recommended.

It serves as a moisture barrier as well as a slip sheet. Our synthetic underlayment is 20 times stronger than felt it won t rip or tear and it won t buckle when wet. The temperature under a metal roof can get very high. Synthetic underlayment for metal roofing if you still use 30 roofing felt you re throwing your money away.

The traditional and most common material used for roof underlayment on a steep slope metal roof is non perforated asphalt impregnated felt underlayment. There are several types of felt underlayment including both organic reinforced and inorganic reinforced. This type of underlayment is critical to a quality roof installation.