Critical Elements for Insulating the Modular Home Foundation

A carefully considered insulation strategy considers air sealing and ventilation must be done during the construction of a modular home. Insulation strategies improve the modular home foundation’s energy efficiency, which reduces your utility bills. There are many kinds of insulation and choosing the right one for a new modular home or remodeling project requires a carefully considered strategy.

How Much Insulation to Use and Where to Install It

At a minimum, insulation is placed in the floor of an unfinished attic, in the exterior walls and in the wall between the garage and the living space. It also may be installed over wall sheathing, which is a material placed between the exterior wall and the cladding material. In some regions, local building codes require the foundation walls and slab to be insulated, too.

Type of Insulation to Use In Modular Home Foundation

The builder should choose the insulation type based on the design of your modular home and your climate zone. A good resource for more information about choosing insulation is the U.S. Department of Energy website.

The following is a guide on what type of insulation is typically installed and in which parts of the modular home. This varies based on the climate and the individual characteristics of the modular home.

Exterior Walls

All building codes require insulation in the exterior walls between the wood studs that make up the frame of the walls. Of the many types available, fiberglass batt insulation is used most often. Fiberglass is an excellent insulator, and is very resistant to fire. Batt insulation is a type of insulation made of loosely matted fibers fashioned into a blanket-like form.

Foundation Walls

In some areas, building codes require modular home foundation walls to be insulated. To meet code, rigid fiberglass can be applied to the exterior of the foundation walls. For maximum benefit, foundation insulation is run from the wall sheathing to the bottom of the foundation wall.

In case you still have question about modular homes and insulated precast foundation, you may contact Legendary Homes Inc in Jackson, Michigan. A representative will be happy to assist you. Meanwhile you can check our modular home price sheets by signing up to our blog

Topic: Modular Home