A Comparison of SPF vs. the Alternatives
	SPF Roofing System	Built-Up Roof	Single-Ply Roof
Leak Prevention	Not moisture sensitive. Monolithic construction prevents lateral moisture flow.	Lateral moisture a definite problem. Leaks hard to find, difficult to repair.	Lateral moisture flow can be a problem. Seams especially vulnerable. Leaks difficult to locate.
Longevity	Excellent proven long life -- early 1970s installations still fuctioning.	Variable -- depends on quality of workmanship and materials.	Varies -- highly dependent on technique of installer. Lap-failure can pose long-term problems.
Warranty	Total system warranty, labor and materials, non-prorated.	Varies, if available at all. Financial basis of guarantor must be considered.	Varies in terms and coverage, usually prorated and/or limited, often covers materials only
Inspections	All jobs inspected by an independent testing lab prior to issuance of warranty. Follow-up inspection program.	No formal inspection program.	Some have inspections programs; re-inspections often not available
Energy Savings	Best commercial insulation available -- "R" value of 6.67 per inch an integral part of system.	Varies greatly. Heat loss at joints, seams and penetrations.	Varies. Heat loss at fasteners and joints.
Close Window