When identifying the compressive capabilities of an insulation material it undergoes two tests.
High compressive strength floor insulation.
Using an unnecessarily high strength insulation you end up paying for something you don t really need.
High compressive strength rigid foam insulation features and benefi ts strength designed for use in high load bearing applications.
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.
Since eps is lower cost per inch than xps and is available in a range of compressive strengths from 10 to 60 psi using it belowgrade and under slabs can save on insulation costs.
Moisture effective resistance against moisture mildew corrosion and rot.
Foamular 400 600 1000 high compressive strength rigid foam insulation product data sheet 467 kb pdf technical bulletins.
So does this mean an insulation board with a kpa of 70 compression strength at 10 compression and 20 compression strength at 1 compression is plenty for a garage floor.
Note that increasing the thickness of eps insulation decreases the overall subgrade modulus.
Astm c578 types and physical properties for foamular xps 106 kb pdf foamular extruded polystyrene insulation for cold storage applications technical guide 884 kb pdf.
Available in 40 60 and 100 psi compressive strengths.
Offering insulation products across a broad temperature spectrum to fit your needs.
It used to insulate solid concrete and suspended timber ground floors and has a thermal conductivity of 0 022 w mk.
Insulation compressive strength can be a very important design consideration.
Short term testing compressive behaviour bs en 826 2013 and.
Target an appropriate compressive strength 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.
If that s right then why bother with 150 kpa pr even up to 500 kpa.
Compressive stress when the compressive strength is not reached the point at which the load stress causes a 10 relative deformation of the insulation.
The highest kn m2 i have is 7 5 for boiler rooms plant rooms including weight of machinery.
The greater the compressive strength the more durable the insulation.
Using the above method to determine the pressure that a slab transfers to the subgrade allows for proper specification of rigid foam insulation and avoids over engineering the insulation for compressive strength.
High compressive strength material can resist damage by foot traffic vibration and various forms of external pressure.