Attic Ventilation Installation Springfield MO

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Air Connection
(417) 895-9290
2810 N Washington Ave
Springfield, MO
Monday 24 Hours
Tuesday 24 Hours
Wednesday 24 Hours
Thursday 24 Hours
Friday 24 Hours
Saturday 24 Hours
Sunday 24 Hours
AC Unit Installation, Boiler Installation, Central AC Installation, Furnace Installation, Heat Installation, Heat Pump Installation, HVAC Contractors, Outdoor Cooling System Installation, Refrigeration System Installation, Water Heater Installation
Service Types and Repair
AC Unit, Boiler, Central AC, Furnace, Heat Pump, Heater, Outdoor Cooling System, Refrigeration System, Water Heater

LCS Kleen Aire
(417) 883-5220
3210 S Scenic Ave Springfield
Springfield, MO
Spring Mountain Air
(417) 831-4036
452-C South Union Avenue
Springfield, MO

Data Provided By:
Master Air Heating & Cooling
(417) 866-4328
2026 W Thoman St Springfield
Springfield, MO
Heaven Engineering LLC
(417) 886-2778
1453 S Summer Pl Springfield
Springfield, MO
Trane Air Conditioning
(417) 863-2110
540 N Cedarbrook Ave Springfield
Springfield, MO
Edge Technologies LLC
(417) 882-6616
1031 E Battlefield St Springfield
Springfield, MO
Bankston Heating & AC
(417) 882-1331
2047 S Ferguson Ave Springfield
Springfield, MO
Thermal Components Company
(417) 882-7440
1936 S Stewart Ave Springfield
Springfield, MO
Temperature Control Company
(417) 866-3177
613 N Main
Springfield , MO
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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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