Underlayments For Metal Roofing

It s about 10 times lighter than felt so it goes up faster and puts less weight and stress on your roof.

Underlayments for metal roofing.

Traditionally metal roofs have used standard 30 pound felt paper underlayment. Make sure the product is designed to be used under metal. It serves as a moisture barrier as well as a slip sheet. Synthetic underlayment for metal roofing if you still use 30 roofing felt you re throwing your money away.

Once again this is used on cold roof construction. The temperature under a metal roof can get very high. 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.

Underlayment is the final weather barrier between your finished roofing and your roof s raw plywood. It s a better and more advanced metal roof underlayment. 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. This type of underlayment is critical to a quality roof installation.

Underlayment must also act as a secondary weather barrier in case the roof fails. Shingles for example are just the first line of defense against elemental damages. The synthetic type is a relatively newer technology and is made by spinning together polyethylene or polypropylene with a polymer. In addition to choosing roofing materials you should also consider roofing underlayment.

There are two types of underlayment for a metal roof felt paper and synthetic each with its pros and cons. 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.