Finding a leak in a sea of gravel can be very difficult even more difficult if the gravel has been set in a layer of hot asphalt.
Gravel on rubber roof.
There are mainly three types of flat roof materials commonly used for flat roofs.
If you are considering replacing an old tar and gravel roof make sure to consult a qualified roofing contractor to explore your best options.
The fact that the gravel collects dirt and moisture can make patching the leaks just as difficult once they have been located.
Generally the weight for a gravel coated roof must be within 10 25 pounds per square foot.
No additional gravel on the roof is required.
The main reason for such popularity of rubber roofs is the lower initial price tag.
This video explain the three commonly flat roof materials used.
Built up roof bur the traditional hot tar and gravel roof is built from three or more plies of waterproof material alternated with hot tar and ballasted by a layer of smooth river stone.
These roofs are installed as thin sheet materials 0 030 30 mils to 0 060 inches 60 mils thick and are applied to the roof in a single layer.
Most people refer to a flat roof as a rubber roof.
Being made of synthetic rubber or polymer they are flexible and elastic and can handle temperature changes and some impact types better than built up roofs.
The three types of flat roofing materials are.
Punctures can also occur in a rubber roof but all of these defects can be easily repaired by a roofer skilled in epdm roofs.
Once made of tar paper these types of roofs gradually are using more advanced materials such as fiberglass membranes.
However rubber roofs have many inherent.
Rubber roofing epdm single ply membranes is the most common flat roofing system in new england ma ct nh ri etc and the rest of us flat roofing marker.
There are two main types of burs or tar and gravel roofing systems modified bitumen roofs which are a mix of asphalt and rubber with a layer of gravel on top and ballast roofing which is a different style of larger gravel applied on top of a single ply roofing system.
This is a surecoat systems coating how to roof r.
Epdm rubber ethylene propylene diene monomer a common use is in vehicles.