Steps in Erecting an Insulated Precast Foundation for Modular Homes

Insulated precast foundation offers durable, flexible solutions for floors, walls and even roofs in every type of domestic construction from individual cottages to multi-storey apartments. Concrete’s high initial embodied energy can be offset by its extended life cycle (up to 100 years) and high potential for reuse and relocation.

Common production methods of insulated precast foundation include tilt-up (poured on site) and precast (poured off site and transported to site). Each method has advantages and disadvantages and choice is determined by site access, availability of local facilities, required finishes and design demands.

In this article we are going to discuss the step by step process of how an insulated precast foundation is erected or installed in a modular home.

Planning of Insulated Precast Foundation.

The manufacturer will require details about soil conditions, the excavation and the structure’s design, and must receive approved drawings before production can begin.

Code Acceptance of Insulated Precast Foundation.

Designs that use insulated precast foundation walls should be submitted for pre-approval with other architectural details with the building permit application. Precast concrete manufacturers generally provide engineering and energy performance documentation to builders to facilitate their acceptance by local building departments.

Arrange Crane Access.

Modular home contractors make necessary arrangements for a crane and crane access to the site.

Prepare Insulated Precast Foundation Base.

The site is excavated, and a six to 12-inch gravel bed is prepared over drain pipe, for bearing and drainage. Make sure that gravel base is level to provide an even surface for the floor joist installation. No conventional poured footer is necessary for many residential applications.

Place and Assemble Panels.

A crane is used for lifting and placing precast concrete panels, which are then sealed and bolted together. Apply a waterproofing material if required by code or desired.

Pour Slab and Install floor Insulated Precast Foundation System.

Once insulated precast foundation panels are assembled, pour the basement slab. Floor joists are installed above the foundation to provide bracing before backfilling foundation walls.

Backfill.

Once braced by the slab and floor system, the insulated precast foundation can be backfilled. Manufacturers provide guidelines for bracing and backfilling

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: Insulated Precast Foundation

Steps in Erecting an Insulated Precast Foundation for Modular Homes