Attic Insulation

Energy Stary LogoThe number one enemy facing an
attic is moisture. It can enter from any
direction – above, below, or from the
side – and it can warp and damage the
roof, render insulation useless, and
create moisture problems in the main
living areas of the house.


Attic moisture intrusion is often
closely linked to the next biggest
problem facing the attic: improper
ventilation. Avoiding moisture intrusion
and ensuring proper ventilation
are the keys to a durable attic.

So then, on to insulation.

Warning: if you think you have vermiculite insulation in your attic, there's a chance it could contain asbestos. Don't disturb it. Only insulation contractors certified to handle and remove asbestos should deal with vermiculite insulation.

The recommended level of insulation for most attics is to insulate to R-38 or about 10 to 14 inches, depending on insulation type. How can you tell if you have enough?

If your insulation is just level with or below your floor joists (i.e., you can easily see your joists), you should add more. It is important that the insulation be evenly distributed with no low spots; sometimes there is enough insulation in the middle of the attic and very little along the eaves.

Don't forget about the soffits! Complete coverage of the attic floor along with sealing air leaks will ensure you get the best performance from your insulation. Rafter vents ensure the soffit vents are clear and there is a channel for outside air to move into the attic at the soffits and out through the gable or ridge vent.   

Contact us for a free quote to evaluate what options make the most sense for your home.
sources: http://www.energysavers.gov/pdfs/guide_to_durable_attics.pdf

http://www.energysavers.gov/your_home/insulation_airsealing/index.cfm/mytopic=11390

http://www.energystar.gov/index.cfm?c=diy.diy_attic_insulation

http://www.energystar.gov/index.cfm?c=diy.diy_rafter_vents

Serving Fairfield County , New Haven County, Litchfield County and surrounding Connecticut cities and towns
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