Modified Bitumen Roofing

Low sloped roofing projects call for different materials than a traditional steeper sloped roofing.  If we were to use traditional underlayment and shingles on a low sloped or flat roof, the nails use to attach our roofing materials would be a tremendous compromise to the integrity of the roof.  Hello leak city!

A material that we often use on residential lower sloped roof is called modified bitumen, and is build very similar to a traditional asphalt shingle.  The difference is that modified bitumen is applied from a roll, and is either torched on or applied with a self contained peel-and-stick adhesive.  When applied correctly, both base and cap layers provide an excellent roofing compound that protects for many years and is very leak-resistant.  It also comes in a greater variety of colors to better match your home’s exterior.

Here are a few “before” and “after” pictures of a recent project which required the removal of a previous (and leaking) rubber roof and skylights.  We installed new decking, base and cap layers of GAF Liberty modified bitumen, three new VELUX skylights, and custom made flashing.

Old Rubber Roof Rubber Roof Skylight FlashingGAF Liberty with VELUX Skylights GAF Liberty with VELUX skylights 2 GAF Liberty with VELUX Skylight

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  1. Jade Brunet says:

    My sister wants skylights for her new cabin. She thinks that it is an awesome way to let in light, keep the place ventilated, and save energy. Your project looks like it was a big success. Thanks for sharing.

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