As1170 1 2002 ta2 92kg m 2 per 100mm.
Roof and ceiling mass.
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Depends on roof and ceiling mass kg m2 below are only typical roof construction examples and may differ in your situation i didn t include tiled roofs which are higher numbers metal sheet tiles or medium gauge corrugated iron battens 12mm softwood ceiling lining sarking lightweight insulation 20kg m2.
Miscellaneous components in addition to other roof components.
The addition of up to 16 3 4 inches of 0 5 pcf glass fiber insulation r 40 either batt or loose fill to any 1 or 2 hour fire resistance rated floor ceiling or roof ceiling system having a cavity deep enough to accept the insulation is permitted provided that one additional layer of either 1 2 inch type x or 5 8 inch type x gypsum board is.
The r value requirements for opaque thermal envelope.
Roof ceiling construction amendments pdf 163 kb this is part of.
Open pdf file 163 kb for 780 cmr ninth edition residential chapter 8.
Terminology roof construction coupled roof ridge board rafter ceiling joist otherwise there is nothing to stop the walls from spreading rafters ceiling joist must be and the roof from collapsing fixed together at the pitching points ridge board when the rafters are tied rafter together by ceiling joists so that they cannot spread the.
Placing heavy furniture carpets and rugs are alternative ways for achieving the same purpose but with lesser effectiveness.
Ceiling roof area of the addition combined.
If any individual fenestration component exceeds the maximum u factor listed in 780 cmr table 6101 3 then the area weighted average u factor for all fene str ation c omponents must be less than or equal to the listed value.
Weight kg m 2 code.
Stratco ceiling battens at 450 centres 0 35 0 45 0 78.
Ninth edition of the ma state building code 780 chapter 7.