Restore & Repair So You Don’t Have to Replace Bituminous roofs and flashings oxidize and dry out as they age. Becoming increasingly brittle, they eventually split open from natural contraction…

THE MOST IMPORTANT PRINCIPLE OF WATERPROOFING Each separate envelope trade contractor’s work, regardless of its being thought of as a waterproofing system or not (e.g., exterior mechanical apparatus), must become…

There is a significant difference between standard oxidized asphalt ASTM D-312 Types I, II, III and IV and unoxidized asphalt materials. The ASTM D-312 products utilize a petroleum derived material…