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.