Interior Wall Insulation Code
Most communities have building codes that require a minimum amount of insulation in a house s exterior walls and ceiling.
Interior wall insulation code. No specific code requirements. The following plan review section provides the code sections for alterations followed by the details of inspecting the alteration under the field inspection section regarding. Add r5 insulative wall sheathing beneath the new siding. When designing and building an interior wall using spray foam insulation you need to take into account code related to.
Wall insulation whenever exterior siding is removed on an. While rated differently these two types of insulation are close enough in thickness that they can both fit into modern two by four wall systems. You can mix the type and material of insulation too. Achieving greater r values in attics.
The ideal attic insulation r value is different than the ideal wall insulation r value. Section r316 local codes based on irc 2012. Add r5 to r6 insulative wall sheathing beneath the new. Local codes based on irc 2009.
Insulating interior walls isn. In most wall applications you will use r 13 or r 15 kraft faced fiberglass insulation rolls for these two by four stud walls. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and. Make sure your home is properly insulated in all these locations.
Local codes based on irc 2009. Building thermal envelope code.