What Is Roofing and Building Paper?
August 14, 2023 August 14, 2023
Roofing and building paper, also known as roofing felt or underlayment, is a crucial component of any roofing system. Idaho Pacific Lumber Company (IdaPac) is an employee-owned construction supply company that offers a plethora of discount building supplies, including roofing and building paper, for your use. Learn more about roofing and building paper below, and contact us today!

What Is Roofing and Building Paper?
Roofing and building paper is typically made from a combination of organic or synthetic fibers that are saturated with asphalt or bitumen. The main purpose of roofing and building paper is to provide an extra layer of protection between the roof deck and the roofing material.
What Does Roofing and Building Paper Do?

Moisture Barrier
One of the primary functions of roofing and building paper is to act as a moisture barrier. It helps prevent water infiltration from rain, snow, or ice, ensuring that water does not penetrate the underlying roof deck. This is particularly important in areas with high rainfall or in regions prone to extreme weather conditions.
Roofing and building paper from IdaPac also serves as a secondary line of defense against wind-driven rain. Even if a slight amount of water manages to get through the primary roofing material, the layer of roofing and building paper provides an additional barrier, preventing water from reaching the interior of the building and causing damage.
Additionally, roofing and building paper aids in controlling moisture that can accumulate within the roof system. It allows moisture vapor to escape from the attic or roof space, helping to prevent the growth of mold and mildew, which can lead to health issues and structural damage.

Fire-Resistant
Another significant benefit of roofing and building paper is its ability to enhance the fire resistance of the roof assembly. Certain types of roofing and building papers are designed to be fire-resistant, providing an added layer of protection against the spread of fire and potentially minimizing damage in the event of a fire.

Our Roofing and Building Paper Options
IdaPac offers a variety of roofing and building paper products in different thicknesses and grades to meet the specific needs and requirements of different roofing applications. Our products are known for their durability, strength, and versatility. Whether it’s for residential, commercial, or industrial roofing projects, IdaPac provides reliable solutions that ensure long-lasting performance and protection.
SHOP OUR WHOLESALE BUILDING MATERIALS TODAY
Roofing and building paper is a crucial component of any roofing system. It provides a moisture barrier, wind resistance, and helps control moisture within the roof assembly. IdaPac is a trusted construction materials supplier of roofing and building paper, offering a wide range of high-quality products that meet industry standards and provide reliable protection for various roofing applications. Based in Meridian, Idaho, we serve all of the U.S. with our top-rated building construction materials. Order today!