Rolled Hot Mop Roof

It involves spreading a layer of hot asphalt on the base layer of the roof.

Rolled hot mop roof.

Hot mop roofing is a very dirty and somewhat dangerous job it s essentially putting molten asphalt tar over a roof. A built up hot mop roof consists of layers of felt and asphalt over a bed of rosin paper. This hot mop roofing application is seen almost entirely in commercial buildings. Comes with a warranty that is viewed as above average.

Flashing is used around roof features as required. If you ve ever seen a hot mopped roof install you ll be thankful your not the one doing it. 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. To install torch down roofing roofers roll out sheets of a bitumen containing material.

In the past most commercial buildings and other flat top structures including homes were topped with tar and gravel roofing. A modified bitumen cap sheet is then applied to the asphalt and both layers are nailed to the roof. Reflective gravel or a cap sheet limits sun damage and improves the roof s appearance. Because of the fumes released by liquefying asphalt hot mopping contributes to smog production.

The asphalt is applied to the roof using a heated mop. This roof is actually an arrangement of various layers of felt and asphalt finally topped off with a layer of gravel.