For the love of God, thank you for this video. I finally understand why my 4-year old roof shingles are bubbling - roofer didn't pay attention to correct ventilation. 😡

Excelllent explanation of ventilation.

You are one hell of a salesman. Great work educating on best practices for attic ventilation. Outstanding.

With Paul’s presentation, I’m completely sold ✊🏾 This guy was great!

Awesome presentation on ventilation

This guy loves his job

I am subscriber 1,000. Congratulations, 😆👍🏻🔥

Still not sold on a ridge vent. It just doesn't seem like it moves much air. My whole house fan I installed in the hall ceiling myself turns the inside air temperature into the outside air temperature in 5 minutes. HVAC guy who had to get into the attic said he couldn't believe how much more comfortable it was. If we only had a ridge vent he would have roasted alive!

Ridge vents work well in cooler climates or small homes gable roofs. On my house, the ridge is 30ft long. Thats about 540-570 sqin outflow. My soffit intakes are 36sqin. Obviously my intakes are suffocating the attic. However the ridge vent only supplies half the exhaust needed for my house to fall into code. The attic is 1050sqft. This means that a large home will need box vents supporting the ridge.

Idaho homeowner here: this was helpful. I have a new roof on the way, and am considering how to vent better in my attic. Thus replace box vents with ridge vents. What about dormers that stick out? Gets very hot under the one for the MB, which is upstairs. Also, what about the gable vents? will they cause short circuiting with a ridge vent? Great presentation!

Excellent presentation. I agree that intake ventilation is not given the coverage it deserves. Can you combine roof intake vents with existing bird vents? Can you use intake vents with an overhang (roof)?

Can you achieve balanced attic ventilation without using an attic exhaust fan to ensure continuous air change rate under all types of external climate conditions?

Great information! I wished I knew before my roof installation. I have winter condensation issues in attic. I changed roof. I am not sure my roofer made sure for balanced ventilation. We have drip edge ventilation. Insulation guy added insulation and sealed openings. But, problem is still there and I believe it's ventilation issue. But, I am not sure how to balance. Whom should I contact? TIA

Can you have too much intake? I have a ridge vent but my intake under the soffit does not seem adequate. I have plywood panels with little holes in them, and then they put metal soffit under that, again with little holes. I assume the airflow is very restricted as my attic gets very hot in the summer. I have no idea how to calculate the square inches that are there due to the multiple panels. If I cut through the soffit panels and the plywood to install the rectangular shape intake vents, do I risk getting too much air intake?

“So john what are you going to do to keep busy now that you have hit the mandatory retirement age at the National Security Agency?” John- “Ventilation seminars”

“short circulting” and examples straw pin hole are both unproper words. Mix ridge and box vent might cause back set or vortex, but not always. they are not short circuiting, and if you suck both end of the straw and pin hole, you are likely to have more output. Anyway, none of roof mfg are mathmatically or physically good, so, only practical test can say yes or no which I have not seen. I have no ridge vent but box vent, attic is very hot, yet when I touch the vent from inside, the hot air are not goes out but cold air is goes in.

Wish I had seen this before I had my roof done 2 months ago and I would have had them put this on my roof.

I have an unheated 30' x 40' pole building in eastern Washington. The building was metal/plywood/tyvek wrapped when built but is currently only half insulated. I have some machine tools that are heavily collecting condensation in the winter. Is this because the insulation is incomplete? When complete it will have an attic and gable vents on both sides. Thanks!

Can you have a gable and ridge on the same roof.

Thx.

does a shingle over roof intake vent work in north east with snow and potential of snow/ice buildup?

At 25:50 I don’t understand his point talking about “over the vent….. If I use felt, I’m not putting felt over the vent. Makes no sense

This dude is offering zero numbers! The difference between gable venting and ridge venting is 10 degrees F at best. This guy is trying to sell ridge vent but he doesnt tell you that they leak and thenines with filters have crapy airflow. Eventhough net free area is 18 sq inches the filter reduces the effective area. Go with soffit vents all around and gable vents and let it go. Ridge vent is easy and very lucrative for contractors to scare you with so they can make 1000 extra bucks per 2000 sq ft house.

Dude remind me of Jim Carey as Fire marshal bill in Living color 😂

Can't find anyone Selling Them, or can't get them, I live in PONCA CITY OKLAHOMA 74601

Great salesman, but dont work as claimed. Fancy computer generated arrows are deceiptive.

This guy is a bit to animated for my liking. Typical salesman hustler behavior.

does this guy always talk like this?