The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available.
Is a roof ridge vent necessary.
Take for example ridge vents.
The additional expense combined with the higher probability of snow blowing in the larger surface area does not warrant installation on all roofs.
I would recommend that you talk to a roofing pro in your area that can come onto the site and advise further and what vent would work best for you.
Continuous ridge vents are more effective because they are installed at the peak of a roof s ridge allowing for warm air to escape from the attic.
The shape of the roof impacts how much air comes through the system which means this vent must always be placed at the peak of the roof along your ridges.
The way a ridge vent works is that it needs intake vents in order to create a vacuum to allow hot air out of the top of the roof.
Vents that run along the roof ridge are an alternative to those that exit through the roof decking or gables and if the ridge is long enough they may be the only roof vents.
My office has a hip roof with ridge vents in my opinion there is far too little ridge for proper ventilation.
Ridge vents adding passive off ridge vents.
If these are absent the ridge vent cannot function.
What are the cons.
Once inside the air heats up and rises higher ultimately exiting through venting at the roof s gables through ridge vents cut into the roof s apex or other vent holes in the roof.
If you were to install about 40 feet of roof ridge vent the area would span up to 10 turbines in this case 10 turbines would cost you substantially more to purchase and install.
As the air leaves it creates negative pressure behind it sucking in cool air from below into the soffits and creating a self repeating ventilation process.
The problem with gables is they short circuit the air flow paulcp writes.
If your home has a flat roof then you will not benefit from the use of a roof ridge vent.
It also works better because it creates a vacuum.
But the ridge vent maintenance and running cost is a lot less than for turbines when.
It has the ability to work with vaulted ceilings and you only need one of them to get the job done for ventilation as compared.
I m a real estate broker so i ve heard different views from home inspectors.
Even without soffit vents a ridge vent is much more effective than gable vents paulcp thinks hammer is right.
The whole point to a ridge vent is that it takes air from all along the bottom of the roof line and exits it out the top kind of like a toilet.
While hardly anybody agrees on the best roof ventilation system everybody agrees some roof vents do hardly any good at all.
I have roof vents so i have roof ventilation.
I want the builder to add a 4 6 off ridge passive vent to improve the hot air release.
