top tips for mounting on low-slope roofing

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Top Tips for Mounting on Low-Slope Roofing

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q  This webinar will be available afterwards at solarpowerworldonline.com & email

q  Q&A at the end of the presentation q  Hashtag for this webinar: #SolarWebinar

Before We Start

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Steven Bushong Editor - Moderator Solar Power World

Brian Stearns Founder & President

EcoFasten Solar & Alpine SnowGuards

Addie Webster Sales/Client Support

EcoFasten Solar


Meet your presenters…

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EcoFastenSolarHistory•  FamilyownedandoperatedinMorrisville,VT•  1998:AlpineSnowGuardsisfoundedbyaformerslateroofer•  2008:EcoFastenSolarisbornwhensolarpanelinstallersstartedaskingifAlpineSnowGuards’proven,waterIghtroofpenetraIonswouldworkforsolarinstallaIons

•  2013:Thetwocompaniesmergedtechnologiesandlaunchedanewproduct,SolarSnowMax,asnowmanagementsystemforsolarpanels

•  2015:EcoFastenSolarintroduceditsfirstrail-freeroofmount,Rock-ItSystem(UL2703compliant)

•  2016:EcoFastenSolarrelocaIngtoPhoenix,AZ

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Thetopinstallersrelyonusfor:

ü  Fast,easyinstallsü  Cost-effec1vesolu1ons

ü  Patented,water1ghttechnology

EcoFastenSolarToday

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FeaturedSpeakers

[email protected]

BrianStearns

•  EcoFastenSolarSales/CustomerSupport•  GraduateofBarnardCollege•  Backgroundinsales•  Spentadecadeinthesustainableagricultureindustry•  Strongproponentofrenewables

•  FounderandPresidentofEcoFastenSolar&AlpineSnowGuards•  Formerroofer–begancareerinthe1970’s•  Well-knownandrespectedindustryvoice&thoughtleader•  Co-authorofTheSlateBook

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•  Thepitchofalow-sloperoofisequaltoorlessthan3:12-definedbyNRCA

Whatisalow-sloperoof?

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•  Installinganyroofingmaterialonaroofwithlessthan3:12pitchdoesnotmakeitlow-sloperoofing

•  Theminimumslopeasphaltshinglesshouldbeinstalled

onistypically2:12pitch•  Low-sloperoofscanbeusedoncommercialroofingas

wellasresidenIal•  Low-sloperoofshaveaminimum¼”riseovera12”run

(followroofingmanufacturer’sinstrucIons)•  Alllow-sloperoofsmustallowwatertodrain

•  Largecommercialstructureswillhavedrainagepaths

Low-sloperooffacts

Drainage

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•  Alllow-sloperoofsmusthavetheabilitytodrywithin24hours(humidityisanexcepIon)

•  Iftheroofdoesnotdrainproperly,bacteriaandorganicgrowthwillappearonthesurfaceoftheroof

•  Thisorganicgrowthwillbreakdowntheroofingmaterialsprematurely

Low-sloperooffacts

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•  RoofinspecIonsincreasethelifeoftheroof,andshouldbedoneaminimumoftwiceperyear•  Low-sloperoofsareoeenpatchedduringroofinspecIons•  Rooferslookforsignsofwearandpatchtheroofpriortoanyproblems

Low-sloperooffacts

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•  Roofdeck-CanbeSteel,ConcreteorWood•  OpIonalAirorVaporBarrier-makesthebuildingenergyefficient•  InsulaIon-Canbeinstalledaslayers•  CoverBoard-CreatesahardsurfaceoverinsulaIon,actsasfirebarrier•  WaterproofCovering-SinglePly,BuiltUpRoofing,ModifiedBitumen,MetalPanels,SprayPolyurethaneFoam

Whatarethegeneralcomponentsofalow-sloperoofassembly?

AirorVaporBarrierRoofDeckInteriorCeiling

RoofStructureInsulaIonCoverBoardWaterproofCovering

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SinglePly-EPDM,TPO,PVC

•  PlasIcorRubberBasedMaterials•  Variousahachmentmethods:

Adhered,ballastedorthrough-fastened

•  Heatweldedoradheredatseams•  CanbemulIplesheetsorseamless

dependingonmanufacturerandroofsize

WeatherproofCoveringOpIons

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•  MulIplelayerswithCapSheets,orBallast/Granules

•  Variousahachmentmethods:Self-Adhered,Torchdown,HotMopped,Fastened,orBallasted

•  Asphalt,tar,orgravel-based

materials•  Lowmaterialcost

WeatherproofCoveringOpIonsBuilt-UpRoofing

Example

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WeatherproofCoveringOpIons

SprayPolyurethaneFoam

PolymerModifiedBitumen

MetalStandingSeamPanel

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•  PlenIful(manylargecommercialbuildings)

•  SecureLocaIons•  Favorablerooftowallarea

forgoodloadvalues•  Canaccommodatelarge

systems,goodreturnoninvestmentforbuildingowners

Whyarelow-sloperoofsagoodplajormforsolar?

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TheroofmustremainwaterJght!•  Inmostlow-sloperoofing,thisisachievedthroughflashingtheahachmentpoints•  Differentlow-sloperoofcoveringswillhavedifferentflashingrequirements

DesignconsideraIonsforsolaronlow-sloperoofs

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WhatcodesgovernwaterIghtPVinstallsonlow-sloperoofs?

•  ICC:InternaIonalCodeCouncil:BuildingcodesareperformanceandprescripIverequirementsforbuildingconstrucIon—includingroofsystems—thatareestablishedandenforcedbystateorlocalgovernmentagenciestoensurepublicsafety,health,andwelfareincommercialandindustrialbuildings.

•  IBC:InternaIonalBuildingCode•  IRC:InternaIonalResidenIalCode•  BoththeIBCandIRCrequirethataflashingmustbeusedwithallmechanical

ahachments.ThisflashingmustbeinstalledperroofingmanufacturersinstallinstrucIons.

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Windresistance•  Thereare3zonesforwindresistanceanalysis:

1.  FieldZone-interior-lowestwindloads2.  PerimeterZone-ends-middlewindloads3.  CornerZones-highestwindloads

•  Windupliecouldmoveorripoffandruintheroofsurfaceifthesystemisnotengineeredforthecorrectwindresistance


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Fireresistance•  RoofSystemsareclassifiedfortheleveloffireresistance

•  ClassA-highestrated(max.spreadofflames=6e.)•  ClassB(max.spreadofflames=8e.)•  ClassC(max.spreadofflames=13e.)

•  ThePVsystemmustbeengineeredwithmaterialstomatchthefireclassificaIonoftheroof•  ThisfireraIngforPVcomponentsisgovernedbyULtesIng

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Roofwarranty•  LimitedManufacturerwarranIesmaybevoidifdesign/install/maintenanceproceduresarenot

followed•  FlashingmustmatchtheroofingmanufacturersinstallinstrucIons•  RooeopPVcannotinterferewithroofmaintenance•  Workwithroofingmanufacturerandtheroofingcontractor

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Maintenance•  TheroofshouldbeingoodcondiIonbeforeinstallingPV-theroofshouldatminimumlast

aslongasthePVsystembeinginstalled•  TheremovalandredesignofaPVsystemaeeronly10-15yearsisalargeexpense•  ThereturnoninvestmentofthePVsystemwouldbediminished

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Beforealow-sloperooeopsystemisdesigned,thefollowingshouldbeevaluated:•  StructuralevaluaIonoftheroofdeck•  StructuralevaluaIonofthebuilding•  Ageoftheroofingmaterials•  Typeofroofingmaterials-toassurethatthecorrectstepsaretakentoupholdtheintegrityof

theroof•  Roofdrainage•  Dirtbuildup•  Rooftraffic•  AccessandSafety

EvaluaIonpriortoPVarraydesign

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Low-SlopePVMoun1ngOp1ons

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AdheredPV-PVlaminate:•  Verylowprofile-aestheIcandwindloadbenefits•  Lightweight•  Usedwithadheredmembraneswithaminimumthicknessof72mil•  CanonlybeusedwithhightempresistantmembranesandinsulaIonsasitcanheatupveryquickly

Low-slopePVmounIngopIons

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Ballastedsystems:•  NoroofpenetraIonsrequired•  Solarpanelsandrackingareheldinplacewithweight•  ProvidesaquickretrofitsoluIon•  Canblockdrainage&compressinsulaIoncreaIngpondingwater•  Thermalexpansion/contracIoncausesdamage/wear&tear•  CanmovefromHVACvibraIons•  Createsdifficultywithroofmaintenance,inspecIonandrepair


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MechanicalaNachments:•  PenetraIngsupportsthatahachtostructuraldeckorbeamsandareflashedintoroofcovering•  FlashingshouldfollowroofmanufacturersinstallinstrucIons(6-8”offroofsurface)•  Strongerahachments•  Canhandlewind,seismicandvibraIonsfromothermachineryonrooeopbeherEx:vibraIonsfromHVACandACunits•  Lighterthanballastedsystems•  Won’tdamageinsulaIonfromcompression•  Reliablewaterproofing•  Mountedhigherofftheroof,easytoinspectandrepair


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Low-slopePVmounIngopIonsMechanicalaNachmentexamples

Ferrule

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PitchPocket(lastresort–avoidwhenpossible)

Low-slopePVmounIngopIonsOtherflashingopJonsformechanicalaNachments

Torchdown

Liquidflashing

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Newtechnologiesthatmakelow-slopeinstallseasierLow-slopePVmounIngopIonsLow-slopemetalstandingseamroofingASGUClamps

•  Clampahachesmechanicallywithsetscrews•  Easy,fastwaytoahachjustaboutanythingto

anystandingseamroof

•  Usesnoadhesive,whichcanbeaffectedbychangesintemperatureorbarometricpressure

•  AcceptedbymajorroofingmaterialsmanufacturerswithoutvoidingwarranIes

•  ManufacturedbyourSistercompany,AlpineSnowGuards,themakerofSolarSnowManagementproducts

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Whatshouldyoulookfor?

•  RaintesIng•  Mechanicalloading•  Standingwatertest

TesIngforlow-slopeproducts

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NewtechnologiesinPVMoun1ngOp1ons

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SimpleGripLow-sloperesiden1al

Newtechnologies:Makinglow-slopeinstallseasier

•  Lightweight,durableconstrucIonenhanceswinduplieandseismicvalueswithoutaddingaddiIonalweight

•  Extensivelytestedforpulloutandshear•  CustomizedsoluIonstomatchanyproprietary

hardware

•  Meetsorexceedsallknownbuildingcodes•  PatentedwaterIghtsealformsanimpenetrablemoisture

barrier•  LargebaseandmulIpleahachmentpointsdistribute

compressiveloadsoverstandardinsulaIon•  AlltesInginfoisavailableonourwebsite•  Contactusifyouwouldlikeasample

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SimpleGripLow-sloperesiden1al


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•  CompaIblewithmostTPO,PVCandEPDM•  Wideflangeiseasytoweldinplace•  Takesthewindloadoffofthemembrane•  ManufacturedbyEcoFasten&DistributedbyOMG•  IncludedinSolarPowerWorld’s2015TopproductsMounIngProducts(PowerGripPlus)

PowerGripandPowerGripPlusLow-slopecommercial


•  2000lbs.tensilestrength/1075lbs.shearstrength•  Securelyanchorstotheroofdeck•  Foruseonlow-slopecommercialapplicaIons•  Helpsprotectsingle-plyroofcoversfromdamagedueto

ballastedrackmovement

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Only technicians trained in single-ply roof installation should install this product.

Always check with roof system manufacturer for installation criteria and written acceptance of the intended application prior to installa-tion. Failure to do so could void the roof warranty.

Only technicians trained in single-ply roof installation should install this product.

Always check with roof system manufacturer for installation criteria and written acceptance of the intended application prior to installa-tion. Failure to do so could void the roof warranty.

PREPARE1. Mark location where PowerGrip

Plus is to be installed. Prepare membrane surface at each location following roof system manufacturers’ requirements.

DRIVE 2. Install recommended fastener through the roof and deck (min. deck penetration 3⁄4-in. for steel, 1-in. for wood) using the depth gauge provided, and allowing the fastener head to sit firmly on the gauge card. Do not overdrive.

ALIGN3. Locate the notch on the perimeter of

the PowerGrip Plus flange and note how it aligns with the plate on the underside of the PowerGrip.

PREPARE1. Mark location where PowerGrip

Plus is to be installed. Prepare membrane surface at each location following roof system manufacturers’ requirements.

DRIVE 2. Install recommended fastener through the roof and deck (min. deck penetration 3⁄4-in. for steel, 1-in. for wood) using the depth gauge provided, and allowing the fastener head to sit firmly on the gauge card. Do not overdrive.

ALIGN3. Locate the notch on the perimeter of

the PowerGrip Plus flange and note how it aligns with the plate on the underside of the PowerGrip.

Installation Instructions

Installation Instructions

153 Bowles RoadAgawam, MA 01001 USA800.633.3800 | 413.789.0252www.OMGRoofing.com

153 Bowles RoadAgawam, MA 01001 USA800.633.3800 | 413.789.0252www.OMGRoofing.com

Based on technology from EcoFasten Solar. U.S. Patent No. 8,683,751.

Based on technology from EcoFasten Solar. U.S. Patent No. 8,683,751.

SLIDE

4. Slide the PowerGrip Plus into place over the head of the fastener.

DRIVE 5. Lift the flange and install eight additional fasteners through the PowerGrip Plus plate, hitting the top flutes. Do not fold or crease the membrane during fastener installation.

WELD6. Heat weld the flange of the

PowerGrip Plus to the manufacturer’s specifications and seal cut edges as required.

SLIDE

4. Slide the PowerGrip Plus into place over the head of the fastener.

DRIVE 5. Lift the flange and install eight additional fasteners through the PowerGrip Plus plate, hitting the top flutes. Do not fold or crease the membrane during fastener installation.

WELD6. Heat weld the flange of the

PowerGrip Plus to the manufacturer’s specifications and seal cut edges as required.

RM1008 Rev. 0314

RM1008 Rev. 0314

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Questions?

Steven Bushong Editor - Moderator Solar Power World [email protected]

Addie Webster Sales/Client Support EcoFasten Solar [email protected]


Brian Stearns Founder & President EcoFasten Solar & Alpine SnowGuards

#SolarWebinar

Thank You q  This webinar will be available at

solarpowerworldonline.com & email

q  Tweet with hashtag #SolarWebinar

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