|
5 Great Reasons
To Choose
 
Attic Ventilation Products
|
- Professional Grade Quality...
All products have been designed for the professional roofing contractor,
and feature fast, easy installation, plus long-term reliability for less callbacks
| - Backed By GAF
- And Good Housekeeping...
Product warranties are backed by North America’s largest roofing
and ventilation manufacturer and have even earned the Good Housekeeping Seal! |
 |
- Extra-Wide Nailing Flanges... When you see this symbol, it
means that the product has been designed with an extra-wide nailing
flange and pre-drilled nail holes
for faster, easier installation
saving you labor
- Latest Design Technology... Many of the products in this
catalog
have been re-engineered for superior performance, longer life, and
easier installation
- New For 2000...Responding to your needs
for quality new products!
|
What ls
Proper Attic Ventilation?
Attic ventilation is any method that removes superheated or moist air away from an attic and replaces it with fresh air.
It is estimated that 9 out of 10 homes In North America do not have proper attic ventilation.
Proper attic ventilation systems allow
a continuous flow of outside air through the attic, protecting the efficiency of the insulation and helping to
lower temperatures in the living space. It consists of both
air intake and air
exhaust.
Why Ventilate?
The primary reason to ventilate is to reduce the effects of heat, moisture and ice dams.
In improperly vented attics, summer heat builds, raising the temperature in excess of 160 degrees Fahrenheit.
This superheated air reduces the life of the roofing materials and eventually
penetrates the ceiling insulation into the living area below. A properly
ventilated attic can help reduce the load on your air conditioner by moving the
superheated air out of your attic before it builds up and causes damage.
Types of damage can include:
• Premature aging of your roofing system
• Higher energy costs
• Warping, cracking, or breaking down of wood framing and damage to exterior siding and paint.
|
In the winter, various household appliances, bathtubs, showers and cooking
vapors
all can contribute to excess moisture build-up. Improperly ventilated
attics will allow this moisture to collect and cling to the underside of the
roof. There, it will condense and fall, soaking the attic insulation and
reducing its efficiency. Additional structural damage can include roof deck
warping and rotting of the wood frame. It can also promote mildew growth,
buckling of shingles and felt, premature sheathing and
siding decay and
peeling of exterior paint. Finally, attics should be properly ventilated to
help prevent ice dams in cold northern climates. During the winter, ice
and snow
on a roof will melt and run down the deck to the cooler eaves.
The eaves will then cause the run-off to freeze and create an ice dam
that will trap moisture on the roof.
|
Choosing
The Right Ventilation Components
|
|
GOOD |
BETTER |
BEST |
Homes
WITH
Soffits |
Intake |
MasterFlow
Soffit/Undereave vent
|
MasterFlow
Continuous Soffit Vents
|
MasterFlow Continuous
Soffit Vents
MasterFlow Whole House Fan (optional)
|
|
Exhaust |
MasterFlow Roof Louvers
MasterFlow Wall Louvers (Gables)
MasterFlow Rotary Turbines |
MasterFlow
Metal Ridge Vents
MasterFlow Power Roof Vents
MasterFlow Power Gable Vents |
Cobra
Ridge Vent or Cobra RidgeII exhaust Vents
|
|
Commercial -
