轻型木结构构造细节2.ppt

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1、CanadaWoodLevel1-Wood-FrameConstructionConstructionDetailsHerbertOtto,B.Arch.,MRAICFoamBoardSheathingAirBarriersExtrudedpolystyreneorfacedfoamboardinsulatedsheathingssealedatalljointsandpenetrationsandsealedtoceilingandfoundationairbarriersSealingoptionsGasketsUreth

2、anesprayfoamCompatibledurabletapeMusttieintoceilingandfoundationairbarriersFoamBoardSheathingAirBarrierMaterialsExtrudedpolystyrenefoamboardFoilfacedpolyisofoamboardinsulationFoamedpolyethylenesillgasketAluminumfoiltapewithacrylicadhesiveContractor’ssheathingtapeorp

3、eelandsticktapeNailswithlargeplasticwashersFoamBoardSheathingAirBarriersGasketedjointSillgasketstapledtowoodframingatjointlocationShiplapXPSnailedatjointintowoodframingcompressinggasketGasketsealsusedatroughopeningsandwindowanddoorframessealedwithsprayfoamFoamboards

4、ealedtowalltopandbottomplatesforconnectiontofoundationandceilingairbarrierFoamBoardSheathingAirBarriersProvidesadditionalinsulationvaluetothewallassemblyReducesthermalbridgingthroughframingIfthefoamboardhasalowwatervapourpermeabilitywithoutcavityinsulationthiswallass

5、emblycanbeusedsafelyinanyclimateintheworld.TapedfoamboardsheathingairbarrierAirBarrierandVapourBarriersbyClimateClimatesrequiringheatingthemajorityoftheyear.AirbarrierlocationCanbelocatedanywhereintheassemblyifvapourpermeableIfvapourimpermeablemustbelocatedonortoward

6、sthewarmsideoftheinsulationVapourBarrierMustbelocatedonortowardsthewarmsideoftheinsulationInmostcoldclimatesmaybelocatedpartiallyinsidewallwith2/3oftheinsulationoutsidethevapourbarrierInarcticregions4/5’softheinsulationmustbeplacedoutsidethevapourbarrier.2/31/3Possib

7、leAirBarrierLocationsPossibleVapourBarrierLocationsOutsideInsideCladdingWRBSheathingInsulationInteriorFinishDrainage/VentilationPlaneAirBarrierandVapourBarriersbyClimateMixedclimatesrequiringheatinginthewinterandcoolinginthesummerAirbarrierlocationCanbelocatedanywher

8、eintheassemblyifvapourpermeableIfvapourimpermeablemustbelocatedatthecentreofthewallVapourBarrierMustbelocatedatthecentreofthewallIn