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Additional attic venting to assist ridge vents
Posted on 8/5/23 at 6:15 pm
Posted on 8/5/23 at 6:15 pm
In an effort to help remove some of the excess heat from our attic, I was told to consider adding a couple of turbine roof vents. We currently have ridge vents but with the extreme temperatures, can’t seem to get the heat out efficiently. Reading up on the two types of systems, I’m getting conflicting info on if it’s ok or not ok.
Anyone added additional venting to help your ridge vents and if so, which type. Appreciate any insight.
Anyone added additional venting to help your ridge vents and if so, which type. Appreciate any insight.
8
Posted on 8/5/23 at 7:25 pm to Shepherd
The heat wave is temporary but holes in your roof are forever.
Posted on 8/5/23 at 8:29 pm to Shepherd
If you’re wanting to add turbines, you’ll be better off deleting the rv and adding turbines. Having both ridge vent and turbines doesn’t hurt, but it’s not really helping anything either.
Posted on 8/5/23 at 8:34 pm to Shepherd
Do your ridge vents really vent? It's not unusual to have no gap or too small an opening in the plywood at the ridge to vent much if any air.
Posted on 8/5/23 at 8:49 pm to Shepherd
I'm considering this myself.
Posted on 8/5/23 at 8:56 pm to Shepherd
This company sells fan mounts for ridge vents and fans I believe. https://atmox.com/catalog/attic-fans/attic-exhaust-fan-multi-mount-225-cfm-atmox/
And there is this but it is solar-powered. You might be able to either retrofit an AC motor or power it through a power supply.
And there are probably others out there
https://www.amazon.com/Solar-Attic-Fan-Ridge-Vents/dp/B005I6AZ1A
And there is this but it is solar-powered. You might be able to either retrofit an AC motor or power it through a power supply.
And there are probably others out there
https://www.amazon.com/Solar-Attic-Fan-Ridge-Vents/dp/B005I6AZ1A
Posted on 8/6/23 at 3:44 am to weadjust
The ridge vents were functional for sure before a roof replacement late last year. Not sure if that caused a malfunction or if it’s just that damn hot. I have a call in to the roofing company to ask for an assist regarding the potential install of something new. He also agreed maybe the second style of venting may not be a good idea and reached out to some companies for insight.
I truly appreciate all of the responses and I’ll update when possible.
I truly appreciate all of the responses and I’ll update when possible.
Posted on 8/6/23 at 6:12 am to Shepherd
Soffit vents MUST be clear of any obstruction for ridge vents to work… any venting for that matter to work well.
Make sure ridge vents are actually penetrating the underlayment and decking.
Don’t add a whirly bird too close to a ridge vent or else you’ll create a vacuum effect and will reverse draft your vents.
Bottom line is that we’re in a heat wave and it’s temporary.
Make sure ridge vents are actually penetrating the underlayment and decking.
Don’t add a whirly bird too close to a ridge vent or else you’ll create a vacuum effect and will reverse draft your vents.
Bottom line is that we’re in a heat wave and it’s temporary.
Posted on 8/6/23 at 12:54 pm to Shepherd
I just did it. Turbines to a roof with insufficient ridge vent area. Very glad I did it. You can read my journey here
TD Home board thread from a month ago with my findings regarding short circuiting
TD Home board thread from a month ago with my findings regarding short circuiting
Posted on 8/6/23 at 2:40 pm to RaginCajunz
First off, thank you.
Second, TD never ceases to impress me with the level of intelligence of some posters. Great read.
Second, TD never ceases to impress me with the level of intelligence of some posters. Great read.
Posted on 8/6/23 at 2:52 pm to Shepherd
You can have too much ventilation, especially with power vent fans or even wind turbines. You can create a negative pressure in your home which is another set of issues to deal with. Look up negative pressure - attic ventilators.
Posted on 8/6/23 at 5:02 pm to jagrays
I have ridge vents and added 5 turbines (non powered). My attic temperature at 4 pm with full sun & 102 deg F outside Temp is at 122 deg F. I added 6" of fiberglass insulation between the roof rafters and covered that with 5/8" plywood decking. The more 'through roof' open area for venting, the lower the attic temperature will be. Decking over the rafters simplifies attic air handler maintenance/replacement (also attic water heater).
Posted on 8/7/23 at 6:16 pm to Nawlens Gator
Also, remember if you add additional roof venting you must also add additional "inlet" air venting in the soffit.
Ridge vents are just nailed on to the roof. You can just pry up one section to see if the plywood or "tar paper" is blocking the air flow. With a good flashlight, you might be able to see what size the "GAP" is for the air flow by looking from in the attic.
Ridge vents are just nailed on to the roof. You can just pry up one section to see if the plywood or "tar paper" is blocking the air flow. With a good flashlight, you might be able to see what size the "GAP" is for the air flow by looking from in the attic.
This post was edited on 8/7/23 at 6:18 pm
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