Do not use mechanical means electric attic fans.
How much attic insulation is too much.
This is oddly enough a question that needs to be addressed also is it even possible to install too much insulation in a home.
As a certified licensed home inspector it is not correct to say too much ventilation is bad for an attic unless rain moisture is getting in.
At some point the cost of adding more insulation becomes hard to justify.
I realize the focus was on too much insulation and found it very interesting and instructive that for example increasing roof r from 60 to 90 yielded a measly 89 kwh savings.
According to home advisor insulating your attic can cost between 1700 to 2100.
For instance r 13 insulation typically is available for filling 2 by 4 stud walls r 19 fits into a 2 by 6 stud depth.
Square footage of your attic.
Sometimes people can get a little over ambitious and install far more insulation than is necessary or even effective.
Type and material of your insulation.
Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter.
One of the reasons that you have too much insulation is probably to save you from spending too much.
Without proper ventilation a home can build up too much moisture especially in the attic warm air rises which can cause mold problems and overall lower indoor air quality.
Even with grid supplied resistance heating that s perhaps 10 15.
Batt insulation is available in various r values depending on given spaces.
Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed.
How much insulation is too much.
Added insulation into your attic will be decreasingly cost effective the more insulation you add and it will get to a point where it will make no difference.
If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs.
When it comes to insulation it s hard to have too much but you can put in so much that it s no longer cost effective to keep adding more.
Net zero case study space heating cold climates.
By martin holladay issue 265 feb mar 2017.
Contractor or insulation installer s fee.
This is not to say that if you have mold in your home too much insulation is the culprit.
If your home is too warm and your air conditioner is running excessively it may be time to look into beefing up your attic s insulation.
