Handbook: A Floating Insulated Subfloor For Slab On Grade Construction

May 13, 2022

Five videos and animations about how to install a subfloor over thick insulation rigid foam board or Rock Wool) without adding sleepers. The insulation can be installed over a concrete slab, or, as is the case in this project, a slabless slab composed of compacted gravel.

Two layers of subfloor are offset and glued together forming a floating subfloor over a floating layer of insulation.

Sketch Pad

Jobsite Footage