Dow Rigid Insulation Under Slab

Use gravel fill to establish a stable even base.

Dow rigid insulation under slab.

I wouldn t go as far as saying you couldn t use spray foam below a slab but i m not sure why you d want to. Since its discovery in 1941 styrofoam brand xps insulation has a long and rich heritage as a sustainable building product insulating to meeting core thermal moisture air and vapor performance requirements through its rigid foam board technology. Get all the construction documentation you ll need in a single click. When building a slab on grade eps rigid foam insulation is the most common choice of insulation for performance and cost.

For installation on concrete foundations and under floor slabs the rigid foam insulation you choose can make a difference of tens of thousands of dollars on a project. Reduces potential for condensation and moisture damage. Use foamular 400 600 or 1000 for industrial applications where floor areas will be exposed to heavy loads. Additional insulation is applied along the edges of the slab because that is a primary surface for heat loss.

View product details. Below grade under slab system with foamular extruded polystyrene rigid board insulation and radiant heating. Dupont styrofoam brand extruded polystyrene foam insulation is an ideal solution for under slab installations offering the following advantages. Owens corning enclosure solutions.

For under slab applications the rigid foam insulation typically should be installed over a gravel base with a poly vapor diffusion retarder between the gravel and insulation. Water resistant rigid board for under concrete slab insulation and slab support in traffic bearing applications. Under floor slabs for under floor slabs foamular 150 or 250 can be used for residential and light commercial applications where floors are subject to normal loads. A careful evaluation of these materials performance attributes against the project s needs can dramatically shrink labor and material costs.

Thermosetting resins from dow can be used as an alternative to traditional formaldehyde based resins for binding mineral fibers in the production of insulation blanket products that go into building insulation systems and specialty insulation. Below grade under slab system with foamular rigid board insulation. Get free shipping on qualified under slab foam board insulation or buy online pick up in store today in the building materials department. Spray foam for sure has uses where it is the best choice by a long shot but under a slab is not the place.

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