Contrary to their name, flat roofs aren’t completely flat, they’re slightly angled to facilitate water runoff and prevent accumulation. Whether referred to as flat or low-slope roofs, these systems have distinct requirements. Selecting the optimal flat roof materials is crucial for achieving a desirable roof for your home or business.

At American Roofing FL, with years of experience installing various flat roof materials across Florida, we’re here to guide you in making an informed decision about your new roof. Let’s explore the best flat types of materials for commercial and residential flat roofs in Florida together.

1. Built-up Roofing (BUR)

Built-up roofing (BUR) systems, originating in the mid-1800s, are among the oldest flat roof materials in the country. Typically, BUR starts with a base insulation sheet for water protection, followed by layers of roofing felt mixed with asphalt for durability. A layer of coal or tar pitch is then applied with a hot mop, creating a unified protective membrane through repeated applications. BUR roofs last 20-30 years, providing excellent waterproofing. Adding crushed stone enhances UV protection, making BUR a fitting choice for Florida’s roofing needs, given its heavy rainfall and intense sunlight.

2. Modified Bitumen Roofing

While Built-up roofing (BUR) systems are a classic option, modern roofing technologies have gained popularity. Modified bitumen, known as “mod bit” by roofers, emerged in the 1960s as a replacement for BUR. It retains reliable BUR technology but incorporates reinforced layers or cap sheets for improved water resistance and durability.

As a flat roof material in Florida, modified bitumen excels at reflecting UV rays, helping to cool homes or businesses without straining air conditioning systems. Unlike BUR, mod bit offers multiple installation methods, including heat, torch, cold, and self-application. The choice of installation method depends on your roof’s requirements. While torch application is traditional, for commercial roofs, cold application may be preferred to avoid damaging existing systems.

Most roofers suggest that a modified bitumen roof can last up to 20 years with regular maintenance, although it often lasts longer due to its low-maintenance nature. Scheduling roof inspections is crucial to addressing any issues promptly.

3. Thermoplastic Polyolefin (TPO) Roofing

Within flat roofing material choices, TPO stands out as the top single-ply membrane roofing system available. A key element in TPO is polypropylene, commonly found in various food containers and household items, known for its slippery nature, aiding in water repellency to maintain a dry and secure roofing structure. Additionally, ethylene-propylene rubber plays a vital role, allowing for expansion and contraction under Florida’s intense sunlight.

These synthetic components collaborate to form a durable single-ply flat roofing system. With regular upkeep, a TPO roof can endure for 20-30 years. Similar to modified bitumen, TPO effectively reflects UV rays and heat away from your home, potentially reducing energy costs.

Contact American Roofing FL for a Free Quote on Commercial or Residential Roofing!

We are here to provide you with the best roofing services for your property. From singly-ply to tile, we offer several types of residential and commercial roofing materials. 

Contact our team today to get a free quote!

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