Built-up Roof systems are made up of multiple layers of rolled reinforcing fabric, such as organic or synthetic felt, bound in place by “cold” adhesive or inter-ply bitumen, most commonly asphalt or cold tar. Despite their numerous physical and chemical differences, both asphalt and cold tar have excellent resistance to moisture and weathering and possess good cohesive and adhesive properties. These systems have maximum slope limitations but are well known for their durability and long life.
 
Children's Hospital Research Building
Customer:
Hunt
Contact:
Robert Fuller
Architect:
Astorino
Roof System:
Build Up Roofing (Cold)
Manufacturer:
Tremco
Completion Date:
July 2007
Size:
29,700 sf

Children's Hospital Clinical Services Building
Customer:
P.J. Dick
Contact:
Frank Babik
Architect:
Astorino
Roof System:
Built Up Roofing (Cold)
Manufacturer:
Tremco
Completion Date:
August 2008
Size:
110,000 sf