About the System

Nearing completion of 12" Raft Slab EPS


InsulRaft is an easy to assemble insulated concrete form foundation system.  This system is for those looking for an alternative to the traditional uninsulated foundation that leaks energy from your house.  What InsulRaft provides is an affordable, high performance, insulated pre-engineered foundation system designed to your targeted insulation performance, heating needs, and PassivHaus certification requirements.

Traditional foundations can be expensive as they require excavation and typically 3 separate concrete pours for the footings, walls and floor. InsulRaft’s system requires one concrete pour and can be built on grade with minimal excavation.  If a below grade foundation is required the slab and tray system works well with ICF walls to provide a very comfortable basement.

InsulRaft’s EPS foam sits under your structural slab foundation and provides a blanket of insulation for your entire home

Our team works with you to design an energy-efficient, affordable foundation system suitable for residential and commercial applications. Professional installation is available or DIY if you choose.

This system can be laid in a little as a few hours once final grade is set.