roof exhaust vent title
The Missing Link in Passive Air Make-up
exhaust vent with collar
roof exhaust vent
PV-12 shown with optional 6" collar
  • Provides Outdoor Air Directly Into Fresh Air Ducts, Attics Or Buildings
  • Extensively Used As A Conventional Roof Exhaust Vent
  • Durable All Aluminum Construction
  • Collars Are Available To Increase The Height Of The Vent
  • Head Assembly is Removable for Easy Installation and Maintenance
  • Wind Tested To 110 Mph
  • Powder Coating Available
  • Lifetime Guarantee
DIMENSIONS & SPECIFICATIONS
As of Jan. 1, 2005
Model No. (A)
Inside Diam
in inches
(B)
Outside Diam
in inches
(C)
Std. Ht. of Head
Assy
(D)
Add'l
Collar
Heights
(E)
Overall
Height
w/6" Collar
Free
Area
Sq. in.
Weight
in Lbs.
Application
Sq. ft.
PV-4 4 8 * ** 11 12.5 1 52
PV-6 6 10 * ** 11 28 1.5 100
PV-8
8
12
*
**
11
50
1.75
200
PV-10
10
14
*
**
11
78
2
325
PV-12 12 16 * ** 11 113 2.5 450
PV-14 14 18 * ** 11 144 3 600
PV-18 18 23 7 ** 13 254 6 1050
PV-24 24 29 9 ** 15 452 10 1883
* 5", Without Collars
**1,2,4, or 6"; also collars can be combined. E.g. two 6" collars combine for a 12" stack
This is based upon the 1/300 rule: One square foot of ventilation on top for every 600 square feet of floor; 50% exhaust, 50% intake.
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