It involves spreading a layer of hot asphalt on the base layer of the roof.
Rolled hot mop roof.
It s also called hot mop roofing or built up roofing because of the techniques used.
This hot mop roofing application is seen almost entirely in commercial buildings.
Comes with a warranty that is viewed as above average.
To install hot mop roofing roofers lay a synthetic base layer top it with a felt layer then pour liquid tar on the roof and spread this sealing compound with a mop which gives the process its name.
The asphalt is applied to the roof using a heated mop.
A built up hot mop roof consists of layers of felt and asphalt over a bed of rosin paper.
This is definitely a professional only roofing category.
This roof is actually an arrangement of various layers of felt and asphalt finally topped off with a layer of gravel.
Because of the fumes released by liquefying asphalt hot mopping contributes to smog production.
Hot mop roofing is a very dirty and somewhat dangerous job it s essentially putting molten asphalt tar over a roof.
A modified bitumen cap sheet is then applied to the asphalt and both layers are nailed to the roof.
Flashing is used around roof features as required.
Reflective gravel or a cap sheet limits sun damage and improves the roof s appearance.
To install torch down roofing roofers roll out sheets of a bitumen containing material.