Attic Insulation In Old Houses

The bigger they are the thicker the insulation you can fit.

Attic insulation in old houses.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Measure the size of the roof rafters. This old house general contractor tom silva shows affordable ways to create an energy efficient attic how to know what insulation is behind your walls if you live in an older home understanding what pads your walls is essential to keeping your family safe. Insulating the attic and roof roughly a quarter of the average home s heat is lost through the roof.

Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. This is a safe first step to retaining heat and saving energy. Both can be added to uninsulated attics or layered over existing material. Sometimes wood products such as sawdust or balsa wood were used at insulation in old homes but these are very ineffective.

Even if you bought the house with insulation already installed into it it s best to double check. I ll say that one more time. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. For diy attic insulation you ve got two choices.

The insulation materials used in older houses are not as effective in keeping heat in as the new ones. Rather than insulating the whole home and potentially causing problems like excess humidity you can properly seal the attic of an old house. Loose fill or batt the common term for blanket insulation. One of the most common materials containing asbestos fibers is attic and wall insulation.

Start in the attic the attic should always be the first place you add insulation whether you live in florida or fargo. Are they 2 6 2 8 or bigger. If you live in an older house you ll have to inspect the insulation. Install attic insulation the answer to making an old house inhabitable is insulation.

Vermiculite and perlite are older granulated insulations with relatively low r values which describes the product s thermal resistance. Inspecting and evaluating your insulation check the attic walls and floors adjacent to an unheated space like a garage or basement. If you have an unfinished and unconditioned attic like many old houses my first recommendation would be to add batt insulation on the underside of the roof. Thickness must not be used as the sole factor in determining the r value of loose fill insulation particularly for attic insulation.

But just because your insulation is old doesn t mean it is dangerous.