The type and amount of roofing felt to apply varies according to roof slope.
How thick should a modified bitumen roof be.
If the slope is between 3 12 and 4 12 use two layers of 15 felt for asphalt shingles.
The base sheet is often self adhered to the roofing substrate.
The expected lifespan of a modified bitumen roof often called a modified bit roof is 10 to 15 years in florida.
Then a modified bitumen membrane embedded with ceramic granules is heat fused down to the base completing the 2 ply system.
Advantages there are a wide range of methods available for installing modified bitumen roofing from using a hot torch to using a sealant backed peel and stick rolls.
Class a ballasted 1.
Modified bitumen is a type of asphalt product that can be applied in a number of ways to the roof in both hot and cold temperatures.
The asphalt and rubber combination makes it durable and holds up to so much more than your standard roofing.
The advantages to a modified bitumen roof i have already told you that they have less maintenance and good lifespan but another great advantage is the strength.
Modified bitumen roof installation inspection troubleshooting repair life expectancy definition properties of modified bitumen roofing modified bitumen roofing materials products metal roof supply sources modified roof inspection leak diagnosis repair maintenance modified bitumen roof shingles superkatepal questions answers about mod bit modified bitumen roofs.
Modified bitumen roofs have a lot of advantages over other types of membrane roofing and are often seen as the modern alternative to the built up roof.
Modified bitumen roofing membranes 55 6 4 u l.
A base sheet and a cap sheet.
It is a roll roofing that is applied with liquid mastic and has a surface finish of small rock granules similar to a 3 tab shingle roof.
Listed specifications single ply membrane systems unless otherwise specified the insulation and base sheet are mechanically fastened to the deck.
The material is used for roofs with a low slope or nearly flat.
Whatever the reason these time sensitive requests require contractors who can quickly provide a roof proposal and get to work.
The combination of these layers makes the membrane over 3 8 thick.
This roof system can withstand heavy foot traffic by work crews snow shoveling and because it has embedded ceramic granules on the surface it will.
If the slope is greater than 4 12 which provides more water drainage from the roof use one layer of 15 felt.
The mem brane is heat fused in place.
The cap sheet is either torched down cold adhered or self adhered modified bitumen can also be applied in hot asphalt.
Often when a homeowner calls you for a roof repair or replacement time is of the essence.
Maybe their roof suffered storm damage or they re selling their home or they ve found a leak that s damaging their ceiling.
There are two main types of modified bitumen sheets.
