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.
Cedar decks generally last from 15 to 20 years, but they can deteriorate faster, particularly on the ground-floor and in shaded areas that take longer to dry out. The average material cost for cedar is $5 to $15 per square foot, for an estimated cost of $6,400 to $24,000 to replace a 16-by-20-foot deck.