Roof And Ceiling Mass

Collar ties rafter ties tension beams structural ridge beams.

Roof and ceiling mass.

Roofing material is estimated by the square which is equal to 100 square feet. Miscellaneous components in addition to other roof components. Open pdf file 163 kb for 780 cmr ninth edition residential chapter 8. The average roof is 3 000 square feet or around 30 squares.

Roof ceiling construction amendments pdf 163 kb this is part of. Stratco ceiling battens at 450 centres 0 35 0 45 0 78. Some of these can support the roof and prevent ridge sagging and wall spreading. Sometimes the water shows up at a ceiling spot distant from the leak.

Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. 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. Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces. 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.

If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic often water runs to openings in the vapor barrier such as at ceiling light fixtures. Weight kg m 2 code. As1170 1 2002 ta2 92kg m 2 per 100mm. Components of roof ceilings shall be fastened in accordance with table r602 3 1.

Some roof leaks are tough to locate. Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive. Ninth edition of the ma state building code 780 chapter 7. The massachusetts state building code 776 780 cmr seventh edition 12 28 07 1 1 08 ceiling roof area of the addition combined.

Weights of building materials in walls.