34 Grayson Ave, Papatoetoe, Auckland, New Zealand (09) 279 9611

Koolfoam Under Slab Insulation

 


Advantages 

  • Excellent compressive strength
  • Moisture resistant
  • Excellent thermal performance
  • 50 year durability when installed and used correctly
  • Multiple options - size - strength - thermal performance

 

Table 1- Common Sheet Sizes 

Size

Under slab - S

Under slab - H

 Under slab - VH

Under slab - BP

2.4*1.2

2.7*1.2

3.0*1.2

3.6*1.2

 

Table 2 - Under Slab Thicknesses and R Values

Thickness mm

Under slab - S

Under slab - H

Under slab - VH

Under slab - BP

20

R0.52

R0.55

R0.58

R0.62

30

R0.78

R0.83

R0.88

R0.96

40

R1.05

R1.11

R1.17

R1.30

50

R1.31

R1.38

R1.47

R1.61

60

R1.57

R1.57

R1.76

R1.93

 

Other thickness - refer to the Properties Section and the Koolfoam Thermal Chart for more infomation 

Table 3 - Compressive Strengths Versus Grade (minimum)

Unit

Under Slab - S

Under Slab - H

Under Slab - VH

Under Slab - BP

kpa

85

135

165

135