Roof Rigid Insulation Weight Psf

Weights of building materials.

Roof rigid insulation weight psf.

In the past couple of years many of you have pursued bid work primarily because the current market for our traditional design build business has dramatically declined. Hardwood 1 nominal 4 0psf quarry or ceramic tile 3 4 10 0psf linoleum or soft tile 1 5psf vinyl tile 1 8 thick 1 4psf soft tile and sheet 1 5psf gypcrete 3 4 6 5psf. Roof trusses span ft weight psf of horizontal plan area 30 5 0 35 5 5 40 6 0 50 6 5 60 7 5 80 8 5 100 9 5 120 10 5 150 11 5 floor joists i joists and open web depth in weight psf of horizontal plan area 9 1 2 2 5 11 7 8 3 5 14 4 0 16 4 5 18 5 0 20 5 5 24 6 0 26 6 3 28 6 6 30 7 0. Eps foam is typically around 1 psf per 12 of thickness 1 pcf.

Rigid fiberglass 1 thick 1 5psf syrofoam 1 thick 0 2psf poured gypsum 1 thick 6 5psf rock wool roll or batt 1 0 4psf glass wool roll or batt 1 0 2psf vermiculite concrete 1 2 6psf sheathing 1 2 3psf petrical 1 thick 2 7psf. The weights of material table in the steel manual and the minimum design dead loads table in asce 7 lists rigid insulation at 1 5 psf per 1 of thickness. Asce states that rigid roof insulation weighs 1 5 psf per inch of thickness whereas polyiso insulation like thermax is 0 25psf per inch. Choose rigid insulation wisely and consider the effect its characteristics will have on the performance of the your project overall product cost and the best way to get the bang for your buck.

Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same. When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary. A table of roof material weights including sheathing insulation and other decking materials. Roof dead loads in psf material weight felt per ply 5 gravel 4 roll roofing 1 235 ib shingles and paper 2 5 2 15 ib and i 90 ib 1 7 3 15 ib and i 90 ib 2 2 3 ply ready roofing 1 3 ply felt and gravel 5 6 4 ply felt and gravel 6 built up roof 5 ply felt and gravel 6 5 concrete plank 6 5 insulrock 2 7.