R 7 7 rigid foam insulation model 310891 18 35 18 35.
Rigid insulation under concrete slab.
For me this is a no brainer.
Case study salesforce tower.
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.
Eps 3 xps 2 faced or unfaced.
Walls foundations roof and roof decks air distribution ceilings interior.
One of the best ways to save money on rigid foam insulation installed under concrete slabs is to ensure the material is not over engineered.
Water resistant rigid board for under concrete slab insulation and slab support in traffic bearing applications.
I will always place the poly on top of the rigid insulation as spoke of in the superinsulated slab article.
Additional insulation is applied along the edges of the slab because that is a primary surface for heat loss.
Concrete 4 existing drywall 2 plywood 5 wood 3 sheathing type.
A careful evaluation of these materials performance attributes against the project s needs can dramatically shrink labor and material costs.
Horizontal insulation placed less than 12 inches below the ground surface or that portion of horizontal insulation extending outward more than 24 inches from the foundation edge should be protected against damage by use of a concrete slab or asphalt paving on the ground surface directly above the insulation or by cementitious board plywood.
We re proud to say our products can be found in some of the tallest and safest buildings around the globe like salesforce tower.
Get free shipping on qualified under slab foam board insulation or buy online pick up in store today in the building materials department.
With a minimum of 70 recycled content the installed thermafiber products contributed to valuable leed credits helping the building earn a leed platinum certification.
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.
A common design assumption leads to specification of rigid foam strengths that are many orders of magnitude higher than necessary which can double the insulation material cost.