Hot Mop Vs Torch Flat Roof

Modified bitumen is really the low end of flat roofing.

Hot mop vs torch flat roof.

On a sloped roof hot mopping begins by embedding a 90lb felt or modified bitumen cap sheet in hot asphalt. It involves spreading a layer of hot asphalt on the base layer of the roof. Torch down is extremely dangerous because you use a touch when heating the sheets of roof and a lot of building has been burned down if you don t what you doing. But better still why not go epdm.

However the type of materials used for the flat roofs depends a lot on your locality. Off the cuff typical range of roof lives not counting repairs if physically pierced maybe 8 20 for built up tar and felt hot mop 10 20 for peel and stick 12 25 or even up to 30 for tpo epdm uv protected pvc like hypalon 30 50 for hdpe. In a state like arizona where they are plentiful you can expect to pay less than 300 per square in most cases. Heat welding also referred to as torch down can evaporate surface moisture from the bonding area.

Flat roof prices vary widely based on geographic location. The material is back nailed to secure it to the roof and covered by the following ply. If hot asphalt is required for other roofing operations to adhere insulation or a base sheet it s likely more economical to hot mop the cap sheet as well. The pros of the hot mop option.

In new england where they aren t as common 600 or more per square is standard these prices include installation but not tear off of the old roof. On a flat roof a mineral surfaced cap sheet or a commercial grade modified bitumen is used and can be torch applied or layered with hot asphalt. Hot mop are dangerous and messy. For instance in hot areas where rainfall is scarce the flat roofing could be constructed with some cement or even brickwork.

With two comparable life spans those seeking a new roof can t pick a winner on this criterion alone. Hot mop roofing has a life span of 15 to 20 years making it a process that you will not soon have to repeat. Hot bur is a lot better. Hot mopping is generally safer and faster than torching.

Thats the best way for most flat roofing situations. A modified bitumen cap sheet is then applied to the asphalt and both layers are nailed to the roof. Hot mop or 3 ply torch down system. The life span of torch down roofing is similar lasting 15 to 20 years with proper installation.

Cost of a flat roof.