Throughout the balance of this digest the terms attic and roof will and can be used interchangeably.
Purpose of attic vents.
In cold climates the primary purpose of attic or roof ventilation is to maintain a cold roof temperature to control ice dams created by melting snow and to vent moisture that moves from the conditioned space to the attic ventilation acts to bypass the vapour barrier created by most roof.
Why plumbing air vents are important.
The purpose of these vents is to keep air circulating in the attic which helps control ice dams in winter prevents overheating in summer and controls moisture all.
Releasing all of the heat that rises and gets trapped in the attic can be achieved with one or a combination of the three following vent models in addition to the multipurpose gable.
Continuous or individual soffits.
I have roof vents so i have roof ventilation.
In theory these are excellent tools for circulating air in the attic and keeping the attic temperature low.
Its drainage and vent functions are actually two systems.
While heat migrates in the summer because your attic is acting as a giant pressure cooker in the winter the attic space is colder allowing more room for the heat to rise and bring all that warm cozy.
However in pursuit of attic ventilation some people choose to install attic power ventilators.
Now that we ve reviewed how ventilation works.
The intake vents work with ridge vents to allow cool air to enter the attic space forcing warm air to exit through the ridge vents.
It is a great ventilation system for your attic or roof on a budget.
Soffit vents are one of the most popular intake vent styles.
It channels the exhaust gases to the vent and helps maintain proper atmospheric pressure in the waste system.
You would think that venting an attic would be counterintuitive in the winter or cold months.
Located at the edges of the roof these intake vents can be installed at the eaves under the soffit at the drip edge or under the shingles at the roof s edge.
The vent stack is the pipe leading to the main roof vent.
These vents allow for a cross breeze through your attic blowing out the warm air and replacing it with cooler less humid air.
While hardly anybody agrees on the best roof ventilation system everybody agrees some roof vents do hardly any good at all.
Attic ventilation in the winter.
The same goes for attic ventilation.
Take for example ridge vents.
They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic.
Gable end vents is a roof ventilation system that is placed on either side of a gable roof that assists in cooling down your attic or roof.
The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available.