Qt = Total air flow of Dust collector. Q1 = Air Flow in first area. Q2 = Air Flow in second area. etc. Static Pressure is a loss due to the air flow pressure pickup area to exit the dust collector system.The pressure loss can occur in the suction, ducting, elbow and cyclone. Calculation of static pressure is based on the duct size.t = Total air flow of Dust collector. Q1 = Air Flow in first area. Q2 = Air Flow in second area. etc. Static Pressure is a loss due to the air flow pressure pickup area to exit the dust collector system.
What is the average cost per square foot to install roof? It depends on the type of roof. A single story low pitch asphalt shingle roof will cost around $40 - $80 per square (100 sq. ft.) to tear off and $75 - $100 per square to inst â¦ all new shingles.If the plywood sheathing underneath is damaged, it will cost extra, up to $50 per sheet replaced.hat is the average cost per square foot to install roof? It depends on the type of roof. A single story low pitch asphalt shingle roof will cost around $40 - $80 per square (100 sq. ft.) to tear off and $75 - $100 per square to inst â¦ all new shingles.
1 The price of a wood shingle roof is usually determined by the number of square feet of space it will be. 2  Common materials for a wooden roof are red cedar shake shingles and yellow pine. 3  Expect to pay between $100 and $200 per square for wood shakes and shingles. Expect to pay between $100 and $200 per square for wood shakes and shingles. 2  The price including installation is $200 to $325 per square foot. 3  For an average-sized roof of 2,000 square feet, this works out to $4,000 to $6,500.