KORE Floor Insulation

KORE FLOOR INSULATION TECHNICAL DETAILS

PDF_small.png Download a copy of the KORE Floor Insulation Design Guide. You can also contact our technical team for condensation risk analysis and typical construction details. You can also learn how to install floor insulation for applications below the floor slab, below the screed, for block and beam floors and suspended timber floors.

FLOOR INSULATION U-VALUE CALCULATIONS

The U-value of a floor is calculated by dividing the floor exposed perimeter (P) by the floor area (A). TGD Part L of Building Regulations requires that the U-value of exposed floors must not exceed 0.21W/m²K or 0.15W/m²K when used in conjunction with at underfloor heating system. Contact our technical team for U-value calculations specific to your floor insulation project. 

A sample U-value calculation is provided below as an example:

Solid Concrete Ground Floors - Insulation Below the Floor Slab

KORE Floor Insulation - Insulation Below Floor Slab

 

KORE Floor EPS70 Silver (0.031W/mK) & KORE Floor EPS100 Silver (0.031W/mK)

Insulation Thickness (mm)  Perimeter/Area (m2)      
  0.2  0.3  0.4  0.5  0.6  0.7 
 U-Value W/m2k      
50mm 0.22  0.25 
75mm  0.18  0.20  0.22  0.22  0.22  0.22 
100mm  0.16  0.17  0.18  0.19  0.19  0.19 
125mm  0.14  0.15  0.16  0.16  0.16  0.16 
150mm  0.13 0.14  0.14  0.14  0.14  0.14 
175mm  0.11  0.12  0.13  0.13  0.13  0.13 
200mm  0.10  0.11  0.12  0.12  0.12  0.12 
250mm 0.09 0.09 0.10 0.10 0.10 0.10
300mm 0.08 0.08 0.08 0.08 0.08 0.08

 

KORE Floor EPS70 White (0.037 W/mK) 

Insulation Thickness (mm)  Perimeter/Area (m2)      
  0.2  0.3  0.4  0.5  0.6  0.7 
 U-Value W/m2k      
50mm 0.23  X
75mm  0.20 0.22  0.23  0.24  0.25  0.25 
100mm  0.17  0.19  0.20  0.21  0.21  0.21 
125mm  0.16  0.17  0.18  0.18  0.18  0.18 
150mm  0.14 0.15  0.16  0.16  0.16  0.16 
175mm  0.13  0.14  0.14  0.15  0.15  0.15 
200mm  0.12  0.13  0.13  0.13  0.13  0.13 
250mm 0.10 0.11 0.11 0.11 0.11 0.11
300mm 0.09 0.09 0.10 0.10 0.10 0.10

 

KORE Floor EPS100 White (0.036W/mK)

Insulation Thickness (mm)  Perimeter/Area (m2)      
  0.2  0.3  0.4  0.5  0.6  0.7 
 U-Value W/m2k      
50mm 0.23  X
75mm  0.20 0.22  0.23  0.24  0.25  0.25 
100mm  0.17  0.19  0.20  0.21  0.21  0.21 
125mm  0.16  0.17  0.18  0.18  0.18  0.18 
150mm  0.14 0.15  0.16  0.16  0.16  0.16 
175mm  0.13  0.14  0.14  0.15  0.15  0.15 
200mm  0.12  0.13  0.13  0.13  0.13  0.13 
250mm 0.10 0.11 0.11 0.11 0.11 0.11
300mm 0.09 0.09 0.10 0.10 0.10 0.10


Please keep in mind that this is only a sample U-value caluclation for one application. Please review our Floor Insulation Design Guide for additional floor insulation applications, or contact us with your project specifications for customised floor U-value calculations and technical details.

PHYSICAL PROPERTIES

Thermal Resistance of KORE Floor Insulation

Thermal resistance, known as the R-value, varies with the thickness of the insulation. To calculate the thermal resistance (m2.K/W) divide the thickness of the insulation by its thermal conductivity and round down to the nearest 0.05.

 

 

 KORE Floor EPS70 White KORE Floor EPS70 Silver

KORE Floor EPS100 White

KORE Floor EPS200 White 
Thickness Insulation (mm) Thermal Resistance(m2.K/W)    
 50mm 1.35 1.61   1.39 1.56 
 75mm 2.03  2.42 2.08 

2.34 

100mm 2.70  3.22  2.78  3.13 
125mm 3.38  4.03  3.47  3.91 
150mm  4.05  4.84  4.17  4.69 
175mm  4.73  5.65  4.86  5.47 
200mm  5.41 6.45  5.56  6.25 
250mm  6.75  8.06  6.94  7.81 
300mm 8.11 9.68 8.33 9.38

Tolerances

In accordance with IS EN 13163:2012 the following tolerances apply to all KORE Floor Insulation products:


 
 
Characteristic  Level/Class/Limit Value  Value (mm)  Standard 
Thickness  T2  ±2mm  EN823 
Length  L3  ±3mm  EN822 
Width  W3  ±3mm  EN822 
Squareness  S5  ±5mm  EN824 
Flatness 

P5 ≤ 0.72m2 

P15 > 0.72m2

±5mm 

±15mm

EN825 

 

The remaining physical properties of KORE Floor Insulation can be found in the Floor Insulation Design Guide.

Declaration of Performance Certificates

The following Declaration of Performance certificates can be downloaded for KORE Floor insulation directly below:

KORE Floor EPS70 Silver
KORE Floor EPS70 White
KORE Floor EPS100 Silver
KORE Floor EPS100 White
KORE Floor EPS200 White
KORE Floor EPS300 White
KORE Perimeter Strips EPS70 Silver
KORE Perimeter Strips EPS100 White
KORE Perimeter Strips EPS100 Silver
KORE Perimeter Strips EPS100 White

 

 
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