Attic Ventilation Calculator Canada

Divide your square footage by 300 sq.

Attic ventilation calculator canada.

To find out how many vents you will need then round up to make sure you re getting enough ventilation. According to the national building code you need 1 sq. There should also be a 50 50 balance of attic venting and roof venting. According to their requirements you should have 1 square foot of attic ventilation per 300 sq ft of attic floor space.

Of ventilation for every 300 sq. Here s how to determine your requirements. All lomanco attic ventilation product requirements are based on the minimum standard 1 300 rule as set forth by the international building code ibc and the international residential code irc. Roof ventilation calculator enter your attic area or length and width to determine your ventilation needs.

Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. Use the duraflo ventilation calculator to determine your home s ventilation requirements. Select ventilation product flex roll ridge vent multi roll multi purpose vent rigid roll ridge. Width or area.

Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Make sure you don t block any ventilation areas. Calculate or enter the square footage of the attic or area to be vented.

Our passive roof vents are ul certified and rated to withstand wind pressure in excess of 200 mph. Vent calculator design your balanced ventilation system. If your roof is 1200 sq ft soffit floor space you will need 4 sq feet of roof ventilation. Gaf attic ventilation calculator.

Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Home attic vent calculator for years we have been working with architects and specifiers to ensure affordable roof ventilation that upholds building code standards. If local code requires the 1 150 rule please double the requirements. Use this calculator to help determine the proper amount of attic ventilation based on u s.