
Contact: John Massengill
Website: congressassociates.com
Contact Info
Congress Associates, LLC
153 US Route 1, Suite 2
Scarborough, ME 04074
(207) 510-6868 Fax (207) 510-6032
John Massengill
Cell: 207-712-0045
Christine Massengill
Office: 207-510-6868

Siplast Waterproofing Systems in New Hampshire
For more than 35 years, Siplast has been a leader in the development and manufacture of the world's most advanced roofing and waterproofing systems. A member of the Icopal Group, one of the world's largest commercial roofing manufacturers, Siplast has a history of innovation. In the late 1960s, Siplast Research and Development, working in conjunction with Shell Chemical of Europe, developed SBS (styrene-butadiene-styrene) modified bitumens. We found that by properly modifying asphalt with SBS, we could produce a highly durable elastomeric blend with exceptional elongation/recovery properties over a wide range of temperatures.


