b'ELECTRICAL CODEadjusterwith14yearsofexperienceFortunately, no one was injured, but the handlingstructurefireclaims,Ihavefamily living in the home lost everything.worked beside both public and privateA Conflict of Interestfireinvestigators,andIcanrecallatMembraneroofsareexposedtofluc-leasttwofires,bothdevastating,thattuating negative pressures generated by resultedfromayears-longprocessofwind as it passes over the roofs surface. 8 carbonizationthe product of injuredWhen a roof is newly built, it must be electrical conductors. One started insidesecuredtothestructuraldecksothat the concealed cavity between the base-mentceilingandthemainfloor.The point of origin was traceable to wiring7 NFPA 921, Guide for Fire and Explosionthat had been overstapled. 7The stapleInvestigations, identifies overdriven or had damaged the conductor, and gradualmisdriven staples as a common cause ofelectrical faults (Section 8.11.8., page 76:heatingeventuallyeruptedinfire.2004 Edition).Figure 2: An example of probable carbonization and arcing through char. The fire that burned this wall ignited several years after the siding was installed on the building exterior. The fire was attributed to the combination of long siding nails and improper wiring practices.(Credit: Fredericton Fire Department) Roof Consulting ServicesCarbonizationisaslowprocess. Itcantakeyears,dependingonhow much heat is involved. But as a mate-rialisgraduallyreducedtocarbon,itThird Party Rooftop Quality Assurance Project Management & AdministrationSubstrate Structural Testing Asbestos TestingnotonlybecomesmoreelectricallyAdhesion & Fastener Testing Plaza Decks & ParkadesRoof Condition AssessmentRoof Anchor Design & Testingconductive,italsobecomeseasiertoRoong Design & Sepcications Green Roofs & Photovoltaicignite. This is because in its carbonized604.295.8070state, it takes less heat energy to bring itto combustion.Why is this a problem for electrical wiring? Because an electrical fault thatLEADING SUPPLIER OF generatesheatbutdoesnotgenerateROOF & FACADE SYSTEMSovercurrent sets the perfect stage for a fire. For example, a roofing screw mayWE METAL YOUR BUILDINGCMYK%: C=0 M=74 Y=100 K=0RGB color space: R=242 G=103 B=34Web HTML HEX: f26722damage(injure)awirebutnotseverPantone equivalent: 179TMKalzipStructural Standing it.ResistancecreatedbythefastenerCMYK%: C=58 M=50 Y=45 K=14RGB color space: R=111 G=111 B=115 Seam (Convex, Concave, Taper, Web HTML HEX: 6f6f73elevatesheatatthepointofinjury,Pantone equivalent: 437 PerfWall & Roof)and heat then gradually carbonizes theCMYK%: C=30 M=24 Y=25 K=0TMSempre Panel HD RGB color space: R=180 G=180 B=180Web HTML HEX: b4b4b4insulationaroundtheconductor.ButPantone equivalent: 436 Pigmented Fiber Cementthat heat will also be conducted by the Y=0 K=100CMYK%: C=0 M=0S-5!Metal Roof Attachment RGB color space: R=35 G=31 B=32fastener into deck or framing material,Web HTML HEX: 231f20Pantone equivalent: 426 Systems (Solar & Snow Retention)and if that material is wood, it too willR The font used in the logo is based on Adobe Typekits licensed Ten Plus Louvers, Screen, Eurostile Heavy. Its unique appearance in the ngineered rchitecturalsis created by compressing the original font while manually adjusting itsbegin to carbonize (Figure 2). Once thehorizontal tracking for each respective word. Grilles & SunshadesThe E & A, of engineering and architecturalsmaterial near the screw has been suffi- has been isolated and placed over a verticalRSeries 500 ACM Rainscreen orange rectangle.ciently reduced to carbon, it may takeOrange has very high visibility, and is used tocatch attention and highlight the most important Frames and ALPOLIC Sheetselements of design. Orange has an invigoratingonly a few arcs through the charred wireeffect on the human psyche and is related tostimulating mental activity, a trait highly valued traitby engineering professionalsinsulation to ignite a fire. The E & A is created from the Adobe Typekits800-737-5811licensed Eurostile Heavy.Ihavepersonallyseenthedestruc- LTD engineeredarchitecturals.comThe design is inspired by extrusion materialdesigns related to architectural engineering principles.This unique shape cannot be altered bytive results of carbonization. As a claimshorizontally expanding/narrowing or verticallydecreasing/increasing its scale.In instances where a color version of this design isnot possible, the black and white (technically no coloris used within the rectangle outline) is l31acceptable for use. www.rcabc.org LTD Confidential property of Engineered Architecturals LTD and should not be copied, modified, retransmitted, or used forany purpose except with Engineereed Architecturals L. TDs written authorization. If you are not the intended recipient,please delete all copies and notify us immediately'