There is also the scope to incorporate a green roof onto the flat structure.
Flat roof coverings options.
Flat metal roofs can last for almost 35 years in ideal conditions.
Options available for flat roof coverings.
Over the past 100 years builders and contractors have designed a number of different flat roof coverings each of them engineered specifically to provide optimal protection and coverage.
In short any roof covering that can make a flat roof waterproof in one layer unlike roofing felt with its 3 layer system for instance.
Those options include the following.
Just enough slope to drain water but also flat enough to be a problem if not constructed properly.
Flat roof options help to free up internal space and are often cheaper that pitched roof options as they require fewer materials to cover the same roof span.
Pros and cons for flat roof materials all three types of flat roofing cost 250 to 350 per square 100 square feet but prices vary according to region and size of the roof.
This can include epdm rubber and fibreglass talked about above but commonly especially in the trade and in this article it refers to pvc tpo tpe and pib.
Pvc flat roof coverings are applied in rolls and heat welded at the seams.
Metal specifically aluminum is known for its durability.
When it comes to covering up a flat roof your options are both limited and expansive.
The large sheets of decking underneath most flat roofs may need to be replaced if you re installing a new roof covering.
Recent research has shown that roofing companies charge between 50 and 60 to replace each sheet with a new osb ply board.
Metal is one of the most popular materials used for flat roof replacement.
Over the years many products have been used and none has emerged clearly as the best.
These flat roof coverings are very pliable and durable with excellent heat and puncture resistance.
It s three main benefits are very comparable to number 5 on the list spray applied roof coatings.
The main problem with the membranes of pvc flat roof coverings are their incompatibility with asphalt which will eat away at these membranes.
Plus it has the added advantage of reflecting heat from the sun which keeps energy costs down.
What that means in a nutshell is that your traditional roofing materials such as asphalt shingles concrete tiles and corrugated metal are out of the window.
Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you build the roofs right and maintain them using commonsense rules.
Pvc is one of the top flat roof options because it is easy to install and lacks water permeability meaning it can resist water ponding.
Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot.