Airtight Construction Inc

Roof waterproofing can provide an extra layer of protection against leaks in case shingles or other parts of the roof get damaged. Professional roofers will lay a base sheet or membrane under the usual underlayment and shingles. They'll also check the flashing around the vents, chimney, and skylights. If you have a flat roof, liquid membranes can be applied to improve waterproofing.