Insulated Precast Foundation Walls for Modular Home Basement
Most modular home contractors would prefer to cast insulated precast foundation walls for their customers. For concrete contractors, either erecting or actually casting precast panels could be a lucrative addition to your modular home.
The most popular insulated precast foundation walls come with a nearly a highly insulated finished panels and interior studs ready to accept drywall. Construction of the precast foundation can proceed in virtually any weather without concern about freezing or wet conditions. Insulated precast foundation erection is also simpler than cast-in-place or ICF construction and can be done by low-skilled workers with only one trained lead.
Benefits of Insulated Precast Foundation
Insulated precast foundation come in various configurations, and gives several benefits. Thicker insulation can increase that to R-21, leaving highly efficient walls for the basement.The insulated precast foundation walls can incorporate window or door openings. There are no stock panels; walls are cast specifically for each project and each panel is cast with its neighbor to match exactly.
This insulated precast foundation system results in crack-free and waterproof walls. The walls are made with 5000-psi concrete with low permeability. Since the concrete is cast in a factory setting, all shrinkage has taken place prior to erection of the walls so panels virtually never crack in service. A broom finish is standard for the exterior of the panels, although other finishes are available, including simulated brick or flagstone textures.
Construction of Insulated Precast Foundation
The base for insulated precast foundation panels is crushed, compacted gravel—no footing is poured. After excavation, 4 inches of ½-inch crushed stone is placed and compacted with a drainage system beneath. This base is adequate for most soils and loading conditions.
The panels are shipped from the factory through a crane. Panels for a typical modular home can be shipped using two or three trailers. Erection is handled with a crew of three or four workers, including at least one lead worker who is certified in the process by the manufacturer. Panels are lifted with a specialized sling and strong back.
Once all panels are in place, a vapor retarder is placed and a 4-inch basement slab is poured. Prior to backfilling, both the slab and the floor joists or trusses must be in place. Some subcontractors also provide hollow-core concrete planks for floors. Waterproofing, drainage panels, or both is applied to the outside face of the panels where needed.
In case you still have question about modular homes, 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
