Hot Mopped Asphalt Roofing

A the average life expectancy of a hot mopped asphalt roof is 15 years.

Hot mopped asphalt roofing.

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. 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. A modified bitumen cap sheet is then applied to the asphalt and both layers are nailed to the roof.

With the elongation characteristics of sbs modified asphalt ideal for new roofing re cover applications and in the construction of flashings no coating required for class a rating from ul core mat is coated with an inherently fire retardant. The edge details are critical to the life of this type of roof. Proposal 1 is a hot mop system with all new flashings and two part foam tile attachment. It s also called hot mop roofing or built up roofing because of the techniques used.

The pros of the hot mop option. It involves spreading a layer of hot asphalt on the base layer of the roof. The hot asphalt is laid out evenly with a large heated mop over the surface. Hot mopped asphalt is applied at approximately 400 degrees fahrenheit.

This may sound simple but there many different possibly hundreds of variations of built up and hot mop roofing. Hot mop roofing is a very dirty and somewhat dangerous job it s essentially putting molten asphalt tar over a roof. It serves to protect the base sheet on your roof and keep it watertight. Comes with a warranty that is viewed as above average.

The asphalt is applied to the roof using a heated mop. Hot mopped specifications manual. This roof is actually an arrangement of various layers of felt and asphalt finally topped off with a layer of gravel. If the roof drains well its life span might be longer.

Hot mopped roofs are durable low cost options compared with others types of roofs. To begin the hot mop process a layer of hot asphalt will be spread on top of the roof s base sheet. If done well these systems are durable and easy to repair if a leak forms. Applying the hot mop in progress is the second step to a general re roofing process acting as a secondary barrier between dry materials and tiles.

Hot mop underlayment is the traditional approach in florida.