Replacing Old Insulation In Attic

Spray foam insulation is often used in places that are difficult to access and install other types of insulation.

Replacing old insulation in attic. Plan to pull up the flooring and layer new insulation on top of the old. 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. Depending on environmental conditions this insulation can last 80 years or more if installed properly.

Mold can grow from the warm humid atmosphere in an attic causing hazardous air quality for your home. A typical insulation project can range from 1 500 to 5 000 depending on the size of the project. Signs it s time to replace insulation in. Any moldy insulation should be replaced immediately.

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. Because the simplest and cheapest way to insulate an attic is to add material to the floor. Or you could blow in more insulation but then you ll find out what dust is really like. Just add non faced batt insulation on top of the existing.

There are a few telltale signs it s time to replace your old attic insulation with new insulation by able roof. You should also replace insulation if your roof has had a leak or you suspect water has gotten into the insulation. 0but olson says in many cases the old insulation does not need to be removed which keeps costs down. If your attic has old or dirty insulation it may be time to get it looked at and replaced.

This is likely the type of insulation you are most familiar with as it is the most common variety used in homes. Old attic insulation is often inefficient and could lead to unnecessarily high energy bills.