Laserfiche WebLink
Project <br />1011 <br />Job Ref. <br />Section <br />CLADDING <br />Sheet no./rev. <br /> 2 <br />Calc. by <br />N.K <br />Date <br />12/12/2023 <br />Chk'd by Date App'd by Date <br />Peak velocity pressure for internal pressure <br />Peak velocity pressure – internal (as roof press.);qi = 11.19 psf <br />Equations used in tables <br />Net pressure;p = qh  [GCp - GCpi]; <br />Components and cladding pressures - Wall (Table 30.3-1) <br />Component Zone Length <br />(ft) <br />Width <br />(ft) <br />Eff. area <br />(ft2) <br />+GCp -GCp Pres (+ve) <br />(psf) <br />Pres (-ve) <br />(psf) <br /><=10 sf 4 --10.0 1.00 -1.10 13.2 #-14.3 # <br />50 sf 4 --50.0 0.88 -0.98 11.8 #-12.9 # <br />200 sf 4 --200.0 0.77 -0.87 10.6 #-11.8 # <br />>500 sf 4 --500.1 0.70 -0.80 9.9 #-11.0 # <br /><=10 sf 5 --10.0 1.00 -1.40 13.2 #-17.7 <br />50 sf 5 --50.0 0.88 -1.15 11.8 #-14.9 # <br />200 sf 5 --200.0 0.77 -0.94 10.6 #-12.5 # <br />>500 sf 5 --500.1 0.70 -0.80 9.9 #-11.0 # <br /># The final net design wind pressure, including all permitted reductions, used in the design shall not be less than 16psf acting <br />in either direction <br /> <br />Components and cladding pressures - Roof (Figure 30.3-2C) <br />Component Zone Length <br />(ft) <br />Width <br />(ft) <br />Eff. area <br />(ft2) <br />+GCp -GCp Pres (+ve) <br />(psf) <br />Pres (-ve) <br />(psf) <br /><=2 sf 1 --2.0 0.70 -1.50 9.9 #-18.8 <br />20 sf 1 --20.0 0.46 -1.50 7.2 #-18.8 <br />Page 33 of 108 <br />1011 W Second St <br />5/1/2025