Beneath the sturdy asphalt shingle layer protecting your home against rain and extreme temperatures is the roof underlayment. It’s not visible from the outside, but it plays a big role in keeping your attic safe from moisture.

Continue reading to get some tips on choosing the best underlayment for your roofing.

Different Types of Underlayment

• Asphalt-Saturated Felt

This material is well-known for its moisture resistance and added insulation. It uses felt paper with asphalt, which gives the material its water-resistant quality. It works best for asphalt shingles and slate and asphalt tiles. While it’s affordable and easy to install, it doesn’t have the same flexibility as rubberized asphalt and synthetic underlayment.

• Rubberized Asphalt

This underlayment offers excellent waterproofing and prevents leaks in the eaves, valleys, vents, skylights and chimneys from causing water damage. It’s made of rubber polymers and asphalt. The only downside of this underlayment is its high price.

• Synthetic

This type of underlayment does away with tar completely. It has better durability and tear resistance than asphalt-saturated felt. It can also withstand hot temperatures. It’s made from high-quality woven or spun polyethylene or polypropylene.

Tips on Choosing Underlayment

Roofers select the underlayment material based on these points:

• The roof’s top layer or roof material. Asphalt shingles work well with asphalt-saturated felt. Meanwhile, metal roofs work well with synthetic underlayment.

• Local climate. It determines the amount of moisture or heat your underlayment must handle. For example, synthetic underlayment is ideal for hotter climates and wet environments. Meanwhile, heavy-duty felt is a good choice for areas that receive a lot of snow and windstorms.

Ensure you’re working with top roofers in your area for excellent roof installations. With iRestore Stl, you can be sure a team of experienced, knowledgeable and well-equipped professionals will handle your project. Call us at (618) 593-9203, or fill out this contact form to request a quote.