Attic Ventilation Installation Statesville NC

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D & J Clean Air Inc
(828) 495-7448
334 Riverview Rd Taylorsville
Taylorsville, NC
Canella Heating & Air Cond Inc
(828) 327-9680
1204 - 1st St W
Conover , NC
Bowers Heating & Air
(704) 528-1065
159 Benson Lane
Troutman, NC
Fitzgerald's Heating and Air
(828) 514-4354
1877 Jaya Drive
Sherrills Ford, NC
Race City Heating & Air Conditioning
(704) 799-2555
PO Box 1344
Mooresville, NC
Service, Sales, Replacement and Indoor Air Quality

Putnam Mechanical LLC
(704) 799-3665
131 Crosslakes Park Dr Ste 202
Mooresville , NC
Neely's Heating & Air Cond
(704) 872-7101
112 Flatrock Ln
Statesville, NC

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Air Energy Experts
(704) 799-2663
516-d river hwy #122
mooresville, NC
Donaldson Heating & Cooling
(704) 663-3482
117 Market Rd
Mooresville, NC
Service Experts
(704) 931-8061
8349 Arrowridge Boulevard, Suite S
Charlotte , NC
$25 off 1st Repair Service

Monday 24 Hours
Tuesday 24 Hours
Wednesday 24 Hours
Thursday 24 Hours
Friday 24 Hours
Saturday 24 Hours
Sunday 24 Hours
AC Unit Installation, Air Quality Testing, Amana Service, American Standard Service, Aprilaire Service, Armstrong Air Service, Boiler Installation, Bryant Service, Carrier Service, Central AC Installation, Commercial HVAC Service, Ducane Service, Duct Cleaning, Furnace Installation, Goodman Service, Heat Installation, Heat Pump Installation, Honeywell Service, HVAC Cleaning, HVAC Contractors, HVAC Maintenance, Lennox Service, Outdoor Cooling System Installation, Payne Service, Residential HVAC S
Service Types and Repair
AC Unit, Boiler, Central AC, Furnace, Heat Pump, Heater, Outdoor Cooling System, Water Heater

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Attic Ventilation Questions and Answers

Attic Ventilation Requirements

What is the proper ratio of ventilation per square foot of roof?

1.5 in per sq. ft. Just make sure that the ventilation is installed so an airway is formed to remove heat through the highest part from the lowest part. Ridge vents and soffit vents work best for this. Also, it is better to have ventilation the entire roof length rather than the 8x12 square vents occasionally in the soffit.

I can't say if it's cost efficient or not, but my attic fan cools the attic a lot. When it's in the 70s outside and the attic fan has not run at all, the attic is too hot to go in. On hot days (80+) it comes on in the early afternoon and runs until about 6:00pm. When it's running I can go into the attic without any problem and it's much cooler.

Another Answer:

The ventilation ratios go according to attic floor size not roof size. You can go as low as 1/300 of the attic floor area (for attics which have a continuous vapor barrier below) to a high of 1.5 in inches x the floor area in feet. So a 1000 sq. feet of attic floor area would require between 480 sq. inches to 1500 sq. inches. That is a huge difference in allowance. I would go with the higher number.
One other thing.. the best system uses ridge vents and soffit vents skipping gable end vents entirely. The number would be split about 50-50 between soffits and ridge.


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