Bayside Roofing knows flat roofs and how to do flat roof repairs right, the first time. For starters, new materials on the market will wear better than the older ones, but they cost more. As a homeowner, you can choose from three different kinds of flat roofs. These types cost somewhere between $250 and $350 per 100 square feet on average. However, you should note that the prices will vary according to the size of your roof. Flat roofs can last up to 25 years.
The three flavors of flat roofs
- Built-Up Roof (BUR)
This type of traditional hot tar and gravel roof is built from three or even more plies of waterproof material alternated with hot tar. It is also ballasted by a layer of smooth river stone. This type is the cheapest of the three, and the gravel is an excellent fire retardant. However, it is very heavy, the joists will have to be strengthened, it is smelly to install and bit messy (though not your problem), the source of leaks is harder to find and the gravel may clog the gutters and the scuppers.
- Modified Bitumen
A single-ply rolled roof impregnated with a mineral-based wear surface. The torch down systems will require heating the adhesive as the roofer unrolls the material. The newer systems of peel and stick is much easier and safer. Since it has a light-colored mineral surface, it will reflect heat and cut on energy bills. This type can be installed residential. It’s not too expensive nor as cheap as the built-up roof. However, its installation process, the torch down application could be a fire hazard if done wrong. In addition, it is not as tear resistant as the next type below.
- Rubber Membrane
EPDM, or ethylene propylene diene monomer, is true rubber. The material is durable, and it looks like an inner tube. It can resist sunlight damage, and it can be ballasted with stone, glued, or mechanically anchored with fasteners. This type can be installed residential. It is light but very resistant to scuffs and tears. Any leak is easy to patch. However, this kind has the highest cost of the three. The black material absorbs heat while the light colored coating reflects the sun which is great for our warm climate.