Mod-Bit roofing are generally composed of alternating layers of bitumen and reinforcing fabrics that create a finished membrane. Asphalt is one of the oldest roofing technologies still in use today and it is a reliable solution for both residential and commercial roofing needs. Asphalt roofing uses asphalt as a waterproofing membrane. Commercial asphalt roofing systems consist of two or more waterproofing layers. 

HEAT-WELDED/TORCH-APPLIED
Using a torch, the installer will melt the asphalt on the underside of the membrane. This will allow the sheet to adhere to the substrate below.

COLD-APPLIED
The installer will attach the roofing membrane by applying a liquid adhesive with a tool such as a notched squeegee or an applicator gun to the substrate or previously applied layer of roofing material.

SELF-ADHERED
This fast-growing asphaltic installation method involves rolling out a membrane and peeling the film backing to adhere the membrane. This method can increase the speed of installation over the other three methods and does not produce unpleasant odors. 

An aerial view of a building in the middle of a field.
The roof of a building is being re-roofed.
A roof with a drain in the middle of it.
An aerial view of the roof of a school building.
A flat roof is being repaired in a parking lot.
An aerial view of a warehouse and parking lot.
A flat roof in a parking lot at dusk.
A roof at sunset.
A white roof is being installed on a building.
A man is working on the roof of a building.
A roof with a white coating on it.
A flat roof with a cell tower on it.
A new roof is being installed on a building.