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What Is Roof Underlayment


Whether you schedule a new roof installation or roof replacement in Florida, the roofing company needs to ensure that your roof is waterproof and protects your house against heavy, high winds and UV rays. Although decking provides roof support and the roofing material offers reinforcement and aesthetics, they alone cannot fully protect your roof.

Roofing contractors add a protective layer known as an underlayment to provide full roof protection. The underlayment lies between the shingles or metal roof and the decking. Underlayment provides an additional layer of protection from the outside elements and insulates your house from the Florida climate.

2 Roofing Underlayment Types

When installing or replacing a roofing system, roofing contractors typically use two underlayment types.

  1. Non-Bitumen Synthetic Underlayment
    Non-bitumen synthetic underlayment consists of polypropylene or polyethylene. One of the distinctive features of this type of underlayment is that it does not absorb moisture. For this reason, it is an ideal roofing material in climates that have extreme temperatures, high humidity, and high annual rainfall rates. Non-bitumen synthetic underlayment has a high resistance to mold, sunlight, and high winds.
  2. Rubberized Asphalt Membrane
    Rubberized asphalt membrane underlayment, often called ice and water shield or peel-and-stick is a blend of asphalts, synthetic rubber polymers, and filler. The combination of materials provides a rugged but flexible surface impenetrable to moisture and wind.

What Are the Benefits of Underlayment?

The several advantages of underlayment include:

Water Resistance

Synthetic underlayment is water-resistant. Rubberized asphalt underlayment is waterproof. It acts as a barrier to severe weather where rain backed by high winds cannot compromise the roof’s integrity. Roofing materials such as shingles or metal roofs act as a shield to the underlayment, making it more effective in resisting moisture.

Weather Protection

Florida can experience severe storms, high winds, hot sun, and hurricanes. When combined with the roofing material and the decking, an underlayment provides excellent protection for your home from Florida weather.

Fire Safety

Underlayment products carry a rating of A, B, or C, with A having high fire resistance and C having low fire resistance. Underlayment with a high rating can significantly decrease your home’s vulnerability to fires caused by lightning strikes.

Clean Surface

Part of what gives a roof its attractive design has a clean, smooth surface to lay the roofing material. When you can lay the roofing material smoothly, it creates a uniform look and a professional finish.

Schedule a Roof Repair with Quality Roofing Today

Whether you need a roof repair or roof replacement, Quality Roofing can help you with your upcoming project. We offer complete roofing services in Florida. Contact us at (850) 753-0041 to schedule a roof inspection in Florida.

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