Hot Mopped Rolled Roofing

Ft sbs self adhering cap sheet roll for low slope roofing in slate model 3730750 101 02 roll 101 02 roll free delivery.

Hot mopped rolled roofing.

It s also called hot mop roofing or built up roofing because of the techniques used. Gaf liberty 3 ft. This can be accomplished by picking up the roll at each end and at the outside edge turning it over and setting it immediately onto hot mopping asphalt. They are designed for roofs with shallow pitches where the rise is no more than 4 inches in every 12 inches.

To install torch down roofing roofers roll out sheets of a bitumen containing material. A built up hot mop roof consists of layers of felt and asphalt over a bed of rosin paper. This roof is actually an arrangement of various layers of felt and asphalt finally topped off with a layer of gravel. Some materials including rubber epdm and tpo roofing are all subject to expansion and contraction which means they shrink and grow in heat and cold.

The pros of the hot mop option. At the same time a 90lb felt or modified bitumen cap sheet which is a type of asphalt that is modified with rubber or fiber is applied onto the hot asphalt. 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. This may sound simple but there many different possibly hundreds of variations of built up and hot mop roofing.

With a base sheet plus three layers you can expect from 600 850 a square depending on installation requirements. A modified bitumen cap sheet is then applied to the asphalt and both layers are nailed to the roof. Hot mopped roofing cost vary depending on the quality and layers of roofing you are having applied. To begin the hot mop process a layer of hot asphalt will be spread on top of the roof s base sheet.

Liberty systems are applied without torches open flames hot asphalt or messy solvent based adhesives and are suitable for primed plywood decks and many other substrates. Hot mop underlayment is the traditional approach in florida. This is where the professional commercial roofing company is at their most valuable. The hot asphalt is laid out evenly with a large heated mop over the surface.

The more seams you have the more areas you have on the roof where the rolls could be pulling away from one another and causing potential leaks. It involves spreading a layer of hot asphalt on the base layer of the roof. Flashing is used around roof features as required. The asphalt is applied to the roof using a heated mop.

When the time comes to re roof your home the hot mop option is a common one. For hot mop application solidly mop the full width of the sheet to be covered including the lap in roofing asphalt. Proposal 1 is a hot mop system with all new flashings and two part foam tile attachment.