Replacing Old Insulation In Attic

Because the simplest and cheapest way to insulate an attic is to add material to the floor.

Replacing old insulation in attic.

But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates. Mold can grow from the warm humid atmosphere in an attic causing hazardous air quality for your home. Plan to pull up the flooring and layer new insulation on top of the old. 0but olson says in many cases the old insulation does not need to be removed which keeps costs down.

Dirty attic insulation on the other hand could have been the result of pests like rodents and birds that contaminated the insulation which can lead to an unhealthy home. Depending on environmental conditions this insulation can last 80 years or more if installed properly. Spray foam insulation is often used in places that are difficult to access and install other types of insulation. Or you could blow in more insulation but then you ll find out what dust is really like.

There are a few telltale signs it s time to replace your old attic insulation with new insulation by able roof. Old attic insulation is often inefficient and could lead to unnecessarily high energy bills. Signs it s time to replace insulation in. If your crawl space or attic insulation is ineffective it can create problems with indoor air quality temperature regulation and heat transfer all of which can affect your roof.

This is likely the type of insulation you are most familiar with as it is the most common variety used in homes. Removing the old insulation while most blown in insulation contains cellulose fibers if the house was built and insulated before 1950 the insulation might contain asbestos. If your attic has old or dirty insulation it may be time to get it looked at and replaced. Just add non faced batt insulation on top of the existing.

Nothing wrong with the old insulation unless it s been disturbed and compressed. We typically work through and seal the attic bypasses with the existing insulation in place olson says.