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Venting is fine on that house.Wind blowing flushes heat out and natural convection from soffit vent keep heat build up going through ridge vents.

My first house was built in the late 1920’s. No vents at all, never had a problem.

Clickbait thumbnail hope you rot in you know where.

i dont agree that 'over-ventilating' is a problem. you're saying cool air entering through the gable vent will prevent soffit vent intake and essentially short circuit the ventilation system. however, the cool air from the gable vents will not flow directly upwards to the box vents or ridge vent. instead, because cooler air is more dense it will fall to attic floor to displace the air exiting near the roof peak. the air near the box vents or ridge vent will always be the hottest air in the attic. nice thing about gable vents is it's quick and easy and inexpensive to get a lot of ventilation square footage out of them, and they offer little resistance to air flow. and these ones are already in place so maybe the homeowner wants to replace the box vents with ridge vents to expand the roof exhaust. but there is no good reason to defeat the existing gable vents and good reason not to

Gabel vent for the win

I’m an HVAC tech in Iowa mine is installed and have had no issues

Some roofs don't have any ventilation.

👍💯

Good to know!

Good to know. Thank you.

Hi, Does the roof need to be replaced where it’s stained with algae in the other areas?

I would never have a ridge vent. They weaken the peak of the roof, are prone to damage, prone to shrinkage which makes them leak, and they block the peak of the roof from walking and materials during maintenance. They slightly improve ventilation but create numerous other problems.

That's why I'm using metal. Indiana.

I can fix all the problems you mentioned! Roof your house with metal 😝

Reading a manual without showing pictures

Where I live, if you don’t tar those shingles that roof flies off on a nice day. The manufacturer says it voids the warranty but who wants to pay for a roof replacement every week.

IMO, ridge vents are worthless. Far too little air flow. As to your contention that the gable vent will become an intake and the hot air at the lower portions of the attic will not vent, that does not follow physics. The hot air will rise and draw from the soffit vents.

Something is bad wrong with the calculations. Every time one of my customers gets a new roof, they remove the roof vents and or power vents and install a ridge vent. Now in the summertime the attic is 30° hotter than it was. Stop doing this, you are wrong! Your customer paid a lot of money to put that power ventilator on their house, leave it the hell alone! YOU ARE WRONG - STOP DOING THIS!!! You are getting your information from the manufacturer of the ridge vents.

For people looking to keep their house cool. Plant some trees that will provide plenty of shade around your house and if you already have large trees, leave them.

I had ridge cobra vents installed with my new roof along all ridges and a I installed a motorized vent fan over my garage on the roof. Its the old school one with the dome over it. Its a 1955 house so there is no ceiling in my garage. That motorized roof vent works awesome. I have a big thermometer attached to the inside peak and the motorized fan lowers the garage temp by ten degree's. That and I had 2 feet of blow in installation installed in the ceiling. Lowered my electric bill 40%.

I can't count the times I've had to argue with people about mixing soffit-ridge ventilation with gable vents. Not only do gable vents reduce the flow from the soffits they also cause a cross wind effect. That disrupts the up-flow which is already reduced. Very bad practice.

The critical thing for ventilation is air intake and air exhaust. If you only have exhaust air will stagnate and not move throughout your roof system. The engineers and experts state that you need equal to or greater than net free area of air intake to feed the exhaust or it will not naturally self convict, but will stagnate within your roof system.😅

Guys don't like to see other guys close up at all.........

Sounds logical

Well that explains why architectural shingles are so much heavier. I thought I was just getting weak lol.

Ridge vents are bad because they have a filter that clogs with dirt and snow. They also need to be installed perfectly. Those box vents are not installed properly. If you mount them on both sides of the roof they draw from each other and not the soffit. Those calculators are also not great. Some rooflines are not boxes so you need to accommodate for all attic spaces.

I live in the desert...... worked in hundreds of attics......... on a summer day attic with out vents 120 degrees attic with vents 119 degrees........ the inside of house is not affected ,,,,,,,,

Good solid information.

Not funny.

1/150 seems like too general of a rule. I would think that you want more ventilation in Florida than Wisconsin!

My home has ridge vents and mini-gable vents. There are also soffits, but most are blocked which will require a contractor to remove the blocking material.

One of the first guys I heard talk about the most important thing!!! VENTALATION ! Excellent !

Ridge vents make a lot more sense than those steel hole vents and look way better.

I'm not sure I agree. You seem to want me to believe that by having gable end vents in addition to box vents (turtle vents where I come from), the laws of physics get suspended and hot air no longer rises from below the g.e. vents. Think about it. Other than power attic vents, the most efficient vents are turbine vents. Continuous ridge vents next and then box vents. The last two are more prone to getting covered with snow (obviously) and losing effectiveness, hence why g.e. vents aren't affected by two feet or more of snow on the roof and still ventilate the attic space.

I have an uninsulated detached garage with open soffits that leaks like a sieve. My Village required the contractor that replaced the roof to install 3 vents. :-C

Friend of mine worked as a shingle salesman, he told me almost every single home in new developments have 1/2 the amount of vents required. And he is ok with that as the shingles fail after 10 years and not 20+ due to them cooking from the inside.

In Alberta Canada in a rural area with very little trees. Those ridge vents can let snow in when the wind is howling at the right direction. Great otherwise

I hope you are fit and fine. I’m a Subscriber of your channel.I want to inform you about some details of your youtube channel. I saw you have around (464 )subscribers and (37 )videos at the Roofing service related niche. Your content and thumbnail qualities are pretty good.

I hope you are fit and fine. I’m a Subscriber of your channel.I want to inform you about some details of your youtube channel. I saw you have around (464 )subscribers and (37 )videos at the Roofing service related niche. Your content and thumbnail qualities are pretty good.

Trying to sell services

@At Your Service Roofing ... Your video is accurate. Of course, too many just cannot seem to wrap their head around facts. EDIT That's why they _need_ people like you! :-)

Thanks for sharing your knowledge

I got rid of my whirlybirds and installed a ridge vent. Huge improvement.

i have a well insulated home .i had ridge vents .i installed whirly birds havent turned the air conditioner since . everything was properly installed but had heat build up till the whirly birds . so i dont know why the heat didnt exscape well enough . i have proper soffet venting . jusy dont know now .

Many ways to vent a roof.

First Understand this video is an advertisement for Owens Corning products. Air exchange is the objective, gable vents will work just fine if soffit vents aren’t in place. Don’t over think it

And a ridge vent is more proper than box vents? Seems it is an alternative.

Just add an exhaust fan from Home Depot on the side vent and that will solve your problem,also it’s an easy installation

great info, thank you!!!

My question/comment is in reference to current building science and the latest building codes. I have recently built my own off grid house and am currently building an off grid cottage. Both structures have 6 and 4 inches respectively of XPS rigid insulation on the roof deck under 2x4 battens and the steel roofing. The area under the roof is conditioned space. My house has been through 2 full winters in the mountains of CO climate zone 7 I believe. I have 0 roof vents and have experienced no condensation or moisture problems that I'm aware of. How do you or anyone else with roofing experience feel about my choices? Oh, it's a 1300sqft 2 story house off grid with solar power for electric heat and a propane backup rinnai wall heater. I'm also using a whole house HRV.