Metal Roof Underlayment Types

Non bitumen synthetics aka synthetic underlayment.

Metal roof underlayment types.

There are several types of felt underlayment including both organic reinforced and inorganic reinforced. Asphalt saturated felt aka felt paper or tar paper. The first goal of roofing underlayment is to keep the roof deck dry before installation of the metal roofing material. The best underlayment for metal roofs.

There are three main types. However to be more precise and detailed that are many different types of roof underlayment for metal roof sheets and these are based on location. Types of roof underlayment. The traditional and most common material used for roof underlayment on a steep slope metal roof is non perforated asphalt impregnated felt underlayment.

Now that we have covered the basics it s time to look at the main types of roofing underlayment. The underlayment for metal roof should be able to withstand very high temperatures and the synthetic type is better equipped to do this. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof. Any underlayment that works for tile roofing is good for metal roofing and vice versa.

Rubberized asphalt aka peel stick underlayment. Traditionally metal roofs have used standard 30 pound felt paper underlayment. Underlayment must also act as a secondary weather barrier in case the roof fails.