General Index - National Roofing Contractors Association

BUTLER MANUFACTURING COMPANYMR-24 is factory prepunched and is applied only toprepunched or field-drilled structurals. A layer of facedblanket insulation is placed between the purlins andMR-24 for energy conservation and to eliminatecondensation.CMR-24 utilizes a continuous corrugated metal linerpanel (decking) with rigid insulation board and thedouble lock standing seam roof system (MR-24).CMR-24 is factory prepunched and is applied only toprepunched or field-drilled structures. A vapor retarderis placed between the corrugated liner and the rigidboard insulation.VSR can be used structurally (over bar joists orpurlins 5 feet on center) or directly over decking (steelor wood) with clip spacing at 30 inches on center.Blanket insulation should be used when VSR is usedwithout decking over structural members. Rigid boardinsulation (Thermax by Celotex) is preferred overdecking.Genesis7 360 is an architectural panel to be usedprimarily over wood or metal deck. It is a weathertightstanding seam panel system utilizing a ΑPittsburgh≅double-lock seam. Genesis 360 can be installed onslopes as low as 1/2:12" with a weathertightnesswarranty offered. Clip spacing to 32". SMACNA detailsavailable.THE CELOTEX CORP.Built-up roofing specs: All Celotex built-up roofingspecs are published with prefix letters AGS (e.g.,AGS-4-C-G) indicating use of Celo-Glass AGS PlySheet, a premium glass ply sheet with propertiesexceeding ASTM D-2178 Type VI and NBS-BSS #55recommendations. Use of Celotex Celo-Glass AGS PlySheet is required to qualify for Celotex "Specification"Warranty. Celotex APP and Celotex SBS modifiedbitumen products exceed the tensile strengthrecommendations of NBS-BSS #55. Other built-uproofing specs are prefixed with the letters G/A andqualify for warranties other than the specificationwarranty.Celotex base sheets are interchangeable whenused in modified bitumen mopped systems, dependingupon the substrate.Celotex also has available cold process modifiedbitumen systems using Celotex SBS mineral surfacecap sheet with SBS modified bitumen adhesive.Celotex Hydro Stop Vapor Barrier/Venting Base Sheetis designed for use over lightweight insulating concretedecks (see specs indicated by ΑH+...≅). Refer toCelotex literature for details.CERTAINTEED ROOFING PRODUCTS GROUP –COMMERICAL ROOFINGEastern Region: 843/744-7451Central Region: 972/580-5604318Western Region: 510/606-7434CONKLIN COMPANY, INC.Benchmark, Rapid Roof III and Polytuff II coatingsystems are recommended over spray foam systems.Only Benchmark is approved when applications requirecompliance with ICBO, Factory Mutual and Metro DadeCounty Florida. Additionally, Hy-Crown (CSPE) singleplyis ICBO recognized, FM approved and classified byUnderwriters Laboratories. All products comply withEnergyStar Roof Products Program guidelines. Forspecific details contact Conklin Building ProductsDivision.COOLEY ENGINEERED MEMBRANES, INC.Fiberboard may be used for certain applications.Contact CEMI for further information.DERMABIT, WATERPROOFING INDUSTRIES, INC.Dermabit roofing and waterproofing modified bitumenmembranes are manufactured using state-of-the-arttechnology. Dermabit membranes consist of two pliesof APP or SBS modified asphalt reinforced with a oneplypolyester mat. All APP products are sold under theDermabit name. SBS products are sold under theElasphalt name. The product number designates thethickness of the membrane and weight of thereinforcing mat. Thus 4170 indicates a 4mmmembrane with a 170 gram polyester mat.Dermabit also manufactures and sells on a specialorderbasis self-adhering modified bitumen peel andstick as well as membranes with different thicknesses,ranging from 1mm to 5mm, different types ofreinforcements, such as fiberglass, fleece, or polyesterfilm or any combination of the above, depending uponthe application requirement.Dermabit membranes can be torched, hot mopped,cold applied, or self-adhered to all roof decks, includingmetal, wood, or concrete. All Dermabit membranesneed to be applied over an asphalt-saturated basesheet or asphalt base primer. Specification manualscan be ordered free of charge by Don Clark at 302/652-2740, Fax 302/652-0145.All Dermabit and Elasphalt 4170 series modifiedbitumen membranes have successfully passed materialtests conducted by Underwriters Laboratories (UL) andFactory Mutual (FM). Please refer to the appropriateUL and FM guide manuals for specific designs andratings.DIBITENDibiten modified bitumen roofing membranes are APPmodified bitumen bonded to a tough, resilientnonwoven polyester core material. They are availablein both smooth-surfaced (Dibiten Poly/4 and DibitenPoly/5) and slate flake-finished (Dibiten Poly/4.5Granular) varieties. Surface color for Dibiten Poly/4 andDibiten a wide range of colors. All the Dibiten APP