NRCA EPDM case studies
NRCA EPDM · Put your knowledge to work in context.
NRCA PROCertification® is described by the National Roofing Contractors Association as its nationally recognized certification program for validating roof system installation knowledge and performance across key systems and roles. EPDM is one of the roof system types for which a PROCertification designation exists, so this credential targets roofing workers who install EPDM membrane roof systems and want national recognition of their installation knowledge and performance. The NRCA EPDM case studies are 5 cases and about 4,557 words.
1Ballasted EPDM Re-Cover on a Joist-Framed Warehouse
An owner of an unheated 18,000 sq ft warehouse (steel joists at 5 ft o.c., 1.5-in. wide-rib steel deck, 32 ft tall) wants a ballasted EPDM re-cover instead of a fully adhered roof because he has heard adhesive roofs fail in cold weather.
830 words, about 4 min2Fully Adhered EPDM in a Late-Season Cold Snap
A 40,000 sq ft office roof in the upper Midwest receives fully adhered 60-mil EPDM over 2-in. The specification calls for a solvent-based bonding adhesive at a coverage rate of 1 gal per 90 sq ft, with the membrane rolled into the adhesive after the adhesive has flashed off.
918 words, about 5 min3Corner Peel-Back on a Mechanically Attached Warehouse Roof
A 24,000 sq ft warehouse in a dusty industrial park receives a mechanically attached 60-mil EPDM roof: 10-ft-wide sheets, fasteners with 2-in. seam plates at 12 in.
954 words, about 5 min4Ponding After a Re-Cover With Raised Drains
A 30,000 sq ft one-story retail building has an existing roof sloping about 1/8 in. per foot to two roof drains, with minor historic ponding.
912 words, about 5 min5Wall Termination at Masonry and Two Marginal Pipe Boots
A 12,000 sq ft fully adhered EPDM roof is being installed on a low-slope building with a brick masonry wall on the north side. At that wall, the crew runs the membrane 5 in.
943 words, about 5 min