Glossary of Commercial Roofing and Sheet Metal Terms
| A•B•C•D•E•F•G•H•I•J•K•L•M•N•O•P•R•S•T•V•W |
A |
| Aggregate:Gravel or crushed stone used to cover some BUR systems |
B |
| Ballast:Smooth river bottom stone used to weigh down EPDM systems |
| Bitumen:Built-Up-Roof, using layers of felt and bitumen (asphalt) |
C |
| Cant Strip:A beveled support used at a junction of a flat surface and a vertical surface to prevent bends and/or cracking of the roof membrane |
| Carlisle:Syntec has led the single-ply industry for over 45 years |
| Curb:An elevation on a roof to accommodate HVAC equipment |
D |
| Deck:The base surface to which a roof system is applied |
E |
| EPDM:“Ethylene Propylene Diene Monomer” rubber membrane |
F |
| Felts:Fiberglass or polyester fleece impregnated with bituminous material |
| Firestone: Firestone Building Products Company is a driving force in the commercial roofing industry |
| Firestone Metal Products/Una-Clad:Founded in 1973 Una-Clad has become an industry leader in the manufacturing of architectural metal products |
G |
| Genflex Roofing Systems:GenFlex Roofing Systems is a leading, full-line supplier of high quality single-ply roofing products for the commercial roofing market |
| Green Roof:The addition of a growing medium (soil) and succulent plants over a roof membrane, may be a modular system |
H |
| Hardboard:(Fiberboard) high-density fiberboard made out of wood fibers |
I |
| IB Roof Systems:“Industry’s Best” are dedicated to manufacturing the highest quality roofing products and accessories available for the roofing and re-roofing industry |
| ISO:Polyisocyanurate Insulation Board |
J |
| Johns Manville:A leading manufacturer and marketer of premium quality building & specialty products |
K |
| Kettle:The device that heats up bitumen to 400o to 500o for application to a roof |
L |
| Loose Laid:A single ply membrane or insulation not adhered or secured by itself |
M |
| McElroy Metal:A leading manufacturer of metal roofing, metal siding & substructural components |
| Membrane:Description or term for a single or multiple layers used to create a roof system |
| Mitsubishi/Alpolic:Leading manufacturer of MCM “Metal Composite Material” in the world |
N |
| Nailer:Wood secured to the edge of a roof deck to terminate roof system and used to secure metal edging |
O |
| Oil Canning:Metal roof panels that distort out causing a look of a tin can |
P |
| Parapet:A short wall at the edge of a roof |
| Paver:A concrete slab usually 2’x 2’ used to create walkways on roofs |
| Peterson Aluminum:Manufacturer of Pac-Clad products was founded in 1965 as a metals service center to the architectural metal industry |
| Pitch Pocket:A pan placed around a roof penetration and filled with a pourable sealer that hardens to seal |
R |
| RUSS Strip or RPFS:“Roof Perimeter Fastening Strip” installed at all base terminations to secure membrane |
S |
| Sarnafil:World wide market leader in thermoplastic membranes |
| Scupper:An outlet in a parapet wall for drainage of water |
| Square:A surface area that is 10’x 10’ or 100 square feet |
T |
| TPO:“Thermoplastic Polyolefin Membrane” |
V |
| Vapor Retarder:A barrier placed between the insulation and the roof deck |
| Versico Incorporated:The third largest manufacturer of EPDM & TPO single-ply roofing systems |
W |
| Weld:In thermoplastics, it is the fusing of a lap by use of heat |
| A•B•C•D•E•F•G•H•I•J•K•L•M•N•O•P•R•S•T•V•W |