Hot Mop Vs Torch Flat Roof

The asphalt is applied to the roof using a heated mop.

Hot mop vs torch flat roof.

Hot mop or 3 ply torch down system. The material is back nailed to secure it to the roof and covered by the following ply. 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. Modified bitumen is really the low end of flat roofing.

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. A modified bitumen cap sheet is then applied to the asphalt and both layers are nailed to the roof. Flat roofs are one of the most popular roofing designs and yet still one of the best investments for most of the facilities. 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. 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. In a state like arizona where they are plentiful you can expect to pay less than 300 per square in most cases. 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.

Hot bur is a lot better. 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. Cost of a flat roof. Hot mop roofing has a life span of 15 to 20 years making it a process that you will not soon have to repeat.

When the time comes to re roof your home the hot mop option is a common one. However the type of materials used for the flat roofs depends a lot on your locality. Hot mopping is generally safer and faster than torching. But better still why not go epdm.

Heat welding also referred to as torch down can evaporate surface moisture from the bonding area. Hot mop are dangerous and messy. With two comparable life spans those seeking a new roof can t pick a winner on this criterion alone. Thats the best way for most flat roofing situations.

Flat roof prices vary widely based on geographic location.