Too Much Blown Insulation In Attic

Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.

Too much blown insulation in attic.

Inspecting your attic insulation first things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. So yes it is possible to over insulate your house. 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. The wood sheathing on your roof under your shingles can rot or become dry and brittle.

Fasten blocking around the hatch or door to allow the material to be installed around this area without escaping. The point of diminishing returns. You d need a thickness of. It s the type that looks like cotton pieces.

Too much insulation is not a problem. You could see your energy bills go down by as much as 15 to 25 percent depending on your climate and existing levels of insulation. The previous owners had too much insulation blown in. It is therefore important to allow the entry of fresh air into your attic to prevent the build up of humidity.

There comes a point where too much insulation starts to have a negative effect financially environmentally and in terms of the longevity of your home. When blown into attics and wall spaces loose fill fiberglass offers an average r 2 5 thermal value per inch the higher the number the greater the insulating effect. However there can be a downside if your insulation material is blocking your vents. There is no airflow and need to remove a large chunk of it.

Fortunately insulation fixation is a monkey not many people have on their backs. Your attic vents allow warm air to expelled more naturally replacing it with cooler air from outside. If a home is over insulated and is too tightly sealed moisture can get trapped inside. Poor ventilation can also wear down your roof prematurely causing shingles to blister due to too much of a heat build up in the attic.

This calculator is to be used as an estimating tool only. The long term payoff of insulating an attic is impressive too. But saving 1 000 or more with blown in ceiling insulation will make up for your aching back. To make it easy to eyeball how level the material is as you blow it in screw depth guides to joists throughout the space.

Click the button to calculate the depth in inches and pounds of total insulation required for this job.