The lifespan of a flat roof depends on the material covering it.
Bitumen flat roof lifespan.
Modified bitumen vs roll roofing.
Modified bitumen roof life defects wear common defects life of modified bitumen roof effective roof coatings.
There are several different advantages to using a bitumen roof on your building or home.
Typically a built up roofing system or a single layer torch on system may be applied on to a built up felt or mastic asphalt roof.
We also advise getting a non economy roof material for a longer lifespan.
This article describes common defects found on modified bitumen roofs such as buckling cracking granule loss improper installation details leaks.
Slightly more expensive than the multi layer membrane an elastomeric bitumen membrane on a flat roof has an extended lifespan and ease of maintenance.
Unlike some newer types of roofing it has a long proven track record that can be counted on.
7 signs you need a new roof.
Consider over roofing as an option provided the roof structure can tolerate the increased load and good practice details can be maintained at upstands for example.
Angle of roof slope higher pitch roofs tend to last longer.
Moreover these membranes have excellent insulating properties resulting in long term energy savings.
The climate condition also contributes to the life expectancy of the roofing.
Since the roof is commonly flat the leaf debris accumulation might not be washed away perfectly.
Modified bitumen roofing is heavier than the roll roofing.
Since flat roofs have little to no pitch the water would work itself underneath the shingles or tiles eventually rotting the substrate and.
So read on to learn how long different types of shingles are likely to last so you can judge the lifespan of your roof.
Average costs for installing this roof are about 2 25 per square foot for a total average cost of roughly 4 500.
Asphalt coverings use layers of felt combined with molten asphalt and topped with a coating of gravel.
Systems designed for sloped roofs such as asphalt shingles and concrete or clay tiles are installed by overlapping one row on top of another these systems work cohesively with the pitch of the roof to shed rainwater and snow as it falls from the sky.
Multiple layer roof a roof installed over an existing roof will have a shorter life.
Bitumen roofs are one of the longer lasting types of flat roofing materials easily lasting 20 years or more.
Orientation of roof surface a roof slope facing south will get more sunlight and have a shorter life.
Color of roof a dark roof absorbs more heat which shortens the lifespan.