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NOTE
INSULATION IS NOT cONTINUOUS SO This DETAIL NOT REcOMMENDED FOR EXTREME OJMATES UNLESS wALLS ARE SUpERINSULATED.
SEE 121B
FLOOR INSULATION AT FOUNDATION
Heated Basement/Joist Flush with Mudsill
FLOOR INSULATION AT FOUNDATION
Heated Basement/Joists Flush with Mudsill
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Ватт INSULATION OR SPRAУED-iN-PLACE Foam INSULATION in cAviTiES BETwEEN JOiSTS, BLOOKING
& subfloor
place vapor retarder on
WARM SiDE OF iNSULATiON
rim joist or blocking AS
REQUIRED BY JOIST BEARING SUBFLOOR
JOIST WiTH 1V2-IN. BEARING (MIN.) OR JOIST HANGER
continuous vapor RETARDER wraps OUTSIDE FLOOR FRAMING & EXTENDS TO INTERIOR OF pLATES TO BE SEALED TO WALL vApOR RETARDER.
blocking AS REQUIRED FRAMED WALL
д) UPPER-FLOOR INSULATION
Platform Frame: Alternative Detail
2X4 OR 2X6 FRAMED WALL WiTH FUTURE WALL INSULATION, vApOR RETARDER, MOiSTURE BARRiER & SiDiNG
fire/nailing block
SUBFLOOR
NOTE:
because the JOiSTS do not penetrate THE WALL cAviTiY, it is possible TO provide A GOOD SEAL against air infiltration. however, this detail DOES NOT provide THE LATERAL STRUCTURAL STRENGTH OF ALTERNATivE DETAIL. SEE 63D
2X4 OR 2X6 FRAMED WALL WiTH FUTURE WALL INSULATION, vApOR RETARDER, MOiSTURE BARRiER & SiDiNG
fire/nailing blocks
SUBFLOOR
WALL cAN BE INSULATED AT TIME OF INSULATION OF WALLS ABOvE & BELOW ONLY IF NAILING BLOck IS
installed in coordination
WiTH INSULATION.
vapor retarder at warm
SiDE OF INSULATION
continuous let-in
LEDGER
NOTE:
BEcAUSE JOiSTS pERpENDicULAR TO THE WALL penetrate the wall cavity, it is difficult TO
GET A TIGHT SEAL AGAINST AIR INFILTRATION FOR ALTERNATivE DETAIL. SEE 63c
Balloon Framing/Joists Perpendicular to Wall
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