Attic Insulation Requirements California

What is california s recommended attic insulation r value as you can imagine the r value for insulating an attic in alaska isn t necessarily going to be the same for insulating an attic in california.

Attic insulation requirements california.

R value is a measure of insulation s ability to resist heat traveling through it. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. For over 50 years insulfoam has been enabling building professionals to construct high quality building insulation systems at a minimal cost. An insulation certificate must be posted indicating that the installed insulation is consistent with the plans specifications and manufacturer s recommendations.

High performance attics prescriptive attic options climate zone hvac duct insulation leakage radiant barrier r 30 at ceiling attic floor r 38 at ceiling attic floor fiberglass below roof deck between rafters air handler ducts in the attic option b 1 r 6 or r 8 depending on cz all with 5 leakage 2 3. Csl and is the nation s largest manufacturer of block molded expanded polystyrene eps. Insulfoam is a division of carlisle construction materials a wholly owned subsidiary of carlisle companies nyse. Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. 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. The higher the r value the better the thermal performance of the insulation. In fact there are building codes that require a certain r value for insulation depending on where in the country you live.

Inspecting your attic insulation. The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home. 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. While federal and in some cases state guidelines for insulation levels are merely recommendations the local building code is the true authority over insulation requirements.

Insulation level are specified by r value. Title 24 insulation requirements california title 24 energy reports and calcs for all projects.