Higher Dimensions Roofing just removed our old asphalt shingle roof and installed modified bitumen SA (a flat rolled material, more appropriate for the low-slope roof of our mid century modern house). They did a great job and the price was very fair. They also rebuilt part of a breezeway roof and did an excellent job, right down to meticulously matching all of the original trim. We will use them again for other building projects and highly recommend them!