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Attic Ventilation Installation Murrells Inlet SC

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Harbor Point Mechanical
(843) 608-8916
1711 Highway 17 South
Surfside Beach, SC
Hours
Monday 9:00 AM - 5:00 PM
Tuesday 9:00 AM - 5:00 PM
Wednesday 9:00 AM - 5:00 PM
Thursday 9:00 AM - 5:00 PM
Friday 9:00 AM - 5:00 PM
Saturday Closed
Sunday Closed
Services
Central AC Installation, Heat Pump Installation, HVAC Contractors
Service Types and Repair
Central AC, Heat Pump

Msw Air Ent
(843) 903-1160
516 Primrose CT Myrtle Beach
Myrtle Beach, SC
 
Climatic
(843) 448-1128
1608 Executive Ave Myrtle Beach
Myrtle Beach, SC
 
James Terry A/C
(843) 365-6818
RURAL ROUTE 7 Conway
Conway, SC
 
Carolina Cooling & Plbg Inc
(843) 238-5805
1294 Surfside Industrial Park
Surfside Beach , SC
 
James Terry Heating & Air
(843) 868-1991
300 Highway 66
Conway, SC
Hours
Monday 24 Hours
Tuesday 24 Hours
Wednesday 24 Hours
Thursday 24 Hours
Friday 24 Hours
Saturday 24 Hours
Sunday 24 Hours
Services
AC Unit Installation, Central AC Installation, Furnace Installation, Heat Installation, Heat Pump Installation, HVAC Contractors, Outdoor Cooling System Installation, Refrigeration System Installation, Residential HVAC Service, Water Heater Installation

Baker Distributing 535
(843) 626-2288
1396 Enterprise Ave Myrtle Beach
Myrtle Beach, SC
 
Alpine Air System Tracy
(843) 449-2952
4600 Central Pkwy # M7 Myrtle Beach
Myrtle Beach, SC
 
Grainger Electric & Hvac
(843) 248-5272
1306 King St Conway
Conway, SC
 
ONeill Bagwell Clg & Htg LLC
(843) 385-2220
711 Luttie Rd
Myrtle Beach , SC
 

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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