How To Install Hot Mop Roofing

How to hot mop a roof step 1. A modified bitumen cap sheet is then applied to the asphalt and both layers are nailed to the roof. You can apply hot mop roofing over old hot mopped roofing or as the first roof on the deck.

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The washer under the screw head should seal to the surface of the panel without bulging or shifting.

How to install hot mop roofing.

The hot asphalt is laid out evenly with a large heated mop over the surface. If short handed staple one end. It involves spreading a layer of hot asphalt on the base layer of the roof. But one system that never goes out of style is the traditional built up hot mop roof.

Use a staple gun to layer rosin paper lengthwise over the roof and cant strips. To begin the hot mop process a layer of hot asphalt will be spread on top of the roof s base sheet. The pros of the hot mop option. Install the roofing screws vertically along each rib in the panel.

The process involves melting blocks of asphalt in a large metal cauldron. Comes with a warranty that is viewed as above average. When applying it as the first roof a base sheet is used to protect the raw wood surface. This is where the professional commercial roofing company is at their most valuable.

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. Secure the screws but do not overtighten. During my 30 years in the roofing business i ve installed many types of roofing and seen a number of products come and go. Layer and nail base sheets shingle.

The asphalt is applied to the roof using a heated mop. Place the first screw about 7 inches from the bottom and each subsequent screw about 18 to 24 inches apart along the vertical run. Nail 45 degree cant strips at all inside corners 12 inches on center using a hammer and roofing nails. I learned how to do built up roofing bur during my early years in the trade and my company continues to do it to this day.

Liquid membrane roofing systems roof coating systems built up roofing systems modified bitumen sbs roofing systems ruberoid mop granule membrane a strong resilient non woven polyester mat that is coated flexible sbs polymer modified asphalt and is surfaced with mineral granules. It truly looks like a bubbling witches pot before is goes on your roof although rectangular with an enclosed burner.