The best flat roof roofing material is undoubtedly an individual sheet of rubber custom made for weather-proofing flat roofs, such as for example Firestone’s EPDM product.
Roof moss removal near me is laid directly onto roof boarding, itself supported by the roof rafters and nagging. Insulating material is normally laid in the space between the two, and if you are renewing your flat roof anyway you may as well take the opportunity of renewing that as well.
This will almost certainly be the recommendation you receive from any reputable builder or roofer advising you on replacing your existing flat roof.
Until recently the most used material for a fresh flat roof was bituminous felt laid in three layers, the first layer nailed down and top of the two bonded to the main one beneath with mastic bitumen. Depending on material used, this may mean heating a solid bitumen-based compound to make it liquid, and then pouring it onto the underlying felt and spreading it evenly over the whole area of the roof.
Then you had to wait for the compound to cool before applying the next layer, and at the end spreading a layer of stone chippings over the roof and bonding it with a chipping compound, this being to reflect the sun’s rays and stop the felt and bitumen degrading quickly.
This was altogether a fairly messy, complicated and time-consuming job best left to the professionals. In addition, there were several stages where it had been very easy to neglect to make the roof weather-proof, e.g. where the edge of the felt met the prevailing tile or slate roofing of the pitch roof.
In addition, if, or rather when, there developed a leak in the flat roof, it could be very difficult and messy to determine exactly where the rain was getting in. Seldom would the manifestation of the leak on the ceiling of the room below be directly below the source of it. Water could easily get by way of a weakness in the bitumen felt and travel along a rafter before descending to the ceiling board below.
The brand new generation of rubber-based flat roofing systems are far superior. For those who have reasonable DIY abilities then you can certainly probably do-it-yourself, with one other person to assist. You can easily look for a local supplier of rubber flat roof roofing material online, and the current price is only around ï¿½6.65 per square metre.
Most suppliers cut the material to the exact size and shape that you require so are there no unnecessary joins, meaning no weaknesses and an extremely long-lasting, leak-proof roof.
The vital part of the whole process is to make sure that there are no gaps between the rubber roof and any existing pitch roof where rain may penetrate. To ensure there are no problems it’s important to run the rubber material up and beneath the tiles or slates of the adjoining pitch roof so that any rain dripping from the lower-most row falls onto the rubber, with no chance for it over-lapping the edge and getting within the pitch roof.
Also, make sure that the existing slope of the flat roof towards the guttering or other method of water escape is maintained. The rubber is simply glued onto the roof boards and sealed where appropriate with metal brackets or bitumen so that rain penetration is impossible. Mind that the glue covers the entire underneath of the rubber so as to avoid bumps in the surface which could obstruct the drainage of the water away.
Rubber roofs have been shown to last for more than 50 years under all weathers, so it really is the only real flat roof roofing material that you should consider when deciding on a fresh flat roof.