How Much Blown In Attic Insulation Do I Need

The thicker the better.

How much blown in attic insulation do i need.

If you need to add insulation in your attic save big by blowing in cellulose insulation yourself. Inspecting your attic insulation. How much insulation do i need in my attic. This range varies from a low of 30 for homes with heat pumps or natural gas furnaces in zone 3 i e.

The insulation in your attic should be at least 12 thick. Wy mt nh me wi etc. Blown in spray foam batts and blankets. When you need to add insulation to an attic crawl space or walls of a home the fastest and most cost efficient method is to use blown in insulation.

Blown in insulation overview. How much does attic insulation cost. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Blowing insulation into walls is best left to the pros because it involves drilling into stud spaces that may contain electrical.

Your options for attic insulation range from radiant barriers to sheets of mineral wool but most homeowners stick with products made from cellulose or fiberglass. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. Add the right kind of insulation. You can do it yourself for about 500.

It is not uncommon to see 15 to 20 of insulation in a well insulated 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. Handy homeowners can install blown in insulation in the attic. The zone you live in will determine how much insulation you need in your attic.

We offer our review of the three most popular types of attic insulation with a look at each one s pros and cons. Whether you need a wall insulation calculator or an attic insulation calculator lowe s blown in insulation calculator has you covered. Looking to install blown in insulation but don t know how much you need. Most of ga al ar sc ok etc to a high of 49 for zones 6 8 i e.

The higher the r value the better the thermal performance of the insulation. When adding additional insulation you do not have to use the same type of insulation that currently exists in your. The average cost of blown in insulation to achieve an r value of r 38 r 49 is 1 665 with most homeowners spending between 874 and 2 156 or 1 59 per square foot.