Large fans can put the house under significant negative pressure.
Ford blow pipe attic fan.
With an attic fan you can cool the attic to the same temperature as it is outside greatly reducing the house from heating as quickly.
Blown in insulation flows down around wall studs.
Materials can be layered for added protection.
During the summer an attic can be 40 to 50 hotter than the outside temperature which in turn heats up the house very quickly.
If the attic is insulated with fiberglass batts just pull back any that are blocking the flow of air.
If there s blown in insulation like ours rake back the fluffy stuff with a 3 or 4 ft long 1 x 6 or use a garden rake or hoe.
Look for an upside down or sideways t shape of pvc pipe with a removable cap.
Panasonic whisperline 240 cfm 1 4 sones ceiling mounted energy star rated exhaust fan with adjustable airflow for ducting multiple rooms model.
The soffit vents are now installed but you still need to make sure there s no insulation blocking the new vents.
If you eliminate just one of these elements mold will starve and die.
Look for white pvc pipe around 3 4 inch 1 9 cm in diameter coming out of your ac system s indoor unit.
Mold needs 3 things to grow.
Shop at lowe s for everything you need for your insulation project including brands like johns manville rockwool greenfiber and owens corning insulation.
I know it gets up to 160 f in my attic and that is also where the a c evaporator is located there by reducing the temp.
Blown in fiberglass is considered flame resistant.
This seems like a different issue to me.
Powered attic ventilators pavs.
Powered attic ventilators should provide at least 10 air changes per hour.
At least one window should be open before the fan is operated.
Thanks john that s what i pointed out when he was considering an exhaust fan hence the bad idea part of my original question.
Related to 3 above this practice can pump warm moist air into the attic where it can be trapped and begin the cycle of mold growth.
Insulation efficiently fills gaps.
This is because the wind must work harder blow through the attic the fan when properly done lets the wind blow easier through the attic.
Most but not all ac units will have an easy to locate access point to the drain line.
I also reduced my electrical cost was in summer about 300 and is now only 200.
Dryer vents plumbing vents kitchen or bathroom fans vented into the attic.
Multiplying the total square footage of the attic by 0 7 will provide the rate required.
But in reference to your response i m not sure how creating positive pressure in the attic via a fan blowing in would allow conditioned air to spill into the attic.
Quietcool attic fans work almost everywhere almost anytime.
