Attic Insulation Requirements Indiana

Loose fill or batt the common term for blanket insulation.

Attic insulation requirements indiana.

Both can be added to uninsulated attics or layered over existing material. 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. R value is a measure of insulation s ability to resist heat traveling through it. R 5 shall be added to the required slab edge r values for heated slabs.

The following are the requirements taken directly from the irc. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Insulation requirements for slab on grade floors are further specified in iecc section r402 2 9. 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.

The majority of the requirements related to attic ventilation have not changed much from the previous editions. Special insulation exceptions related to ceilings with attic spaces ceilings without attic spaces masonry veneer and. In other words the desired inside temperature remains and the undesirable outside temperature stays well outside. Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.

The ventilation amount and opening size requirements can be found in section 806 roof ventilation of chapter 8 roof ceiling construction. For diy attic insulation you ve got two choices. The thickness of blown in or sprayed roof ceiling insulation fiberglass or cellulose shall be written in inches mm on markers that are installed at least one for every 300 ft 2 28m 2 throughout the attic space the markers shall be affixed to the trusses or joists and marked with the minimum initial installed thickness with numbers a. Insulation institute association provides resources and information on spray foam rockwool and fiberglass insulation insulation r values building code changes as well as instructions for homeowners and building professionals when installing insulation in attics ceilings and other interior locations.

Inspecting your attic insulation. N1101 4 1 blown or sprayed roof ceiling insulation. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. The higher the r value the better the thermal performance of the insulation.

The table below shows what levels of insulation are cost effective for different climates and locations in the home. The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home.