Hot Mopping Roof Material

When the time comes to re roof your home the hot mop option is a common one.

Hot mopping roof material. Because of the fumes released by liquefying asphalt hot mopping contributes to smog production. A hot mop roof is only used on flat and low roofs they are sometimes called tar and gravel roof. The thickness of this material means it takes longer to heat in the sun and hence longer to absorb that heat back into your home. To install torch down roofing roofers roll out sheets of a bitumen containing material.

On a sloped roof hot mopping begins by embedding a 90lb felt or modified bitumen cap sheet in hot asphalt. Hot mop roof hot mop roofs use a combination of felt and asphalt. Heat welding preheats and softens material offering advantages in cold. The asphalt is applied to the roof using a heated mop.

Heat welding also referred to as torch down can evaporate surface moisture from the bonding area. Hot mopping is generally safer and faster than torching. Reflective gravel or a cap sheet limits sun damage and improves the roof s appearance. Slab concrete is a cheap although heavy solution for hot weather roofs.

In the past most commercial buildings and other flat top structures including homes were topped with tar and gravel roofing. A built up hot mop roof consists of layers of felt and asphalt over a bed of rosin paper. 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. This roof is actually an arrangement of various layers of felt and asphalt finally topped off with a layer of gravel.

Installation process 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. Flashing is used around roof features as required. A modified bitumen cap sheet is then applied to the asphalt and both layers are nailed to the roof. The material is back nailed to secure it to the roof and covered by the following ply.

This creates various layers which are then finished with a layer of gravel. It involves spreading a layer of hot asphalt on the base layer of the roof. While the installation process can be a messy one the price is exceptionally appealing to many homeowners.