Building Envelope Kalzip insulation

Kalzip insulation

Kalzip insulation products conserve energy through their use by reducing the requirement to heat or cool buildings, limiting CO2 emissions.

They are also HCFC and HFC free and have a global warming potential (GWP) rating of less than five.

The most common insulation used is a quilt type, non-hygroscopic material that will not absorb any moisture, but simply retain it on the surface of the mineral wool thus encouraging evaporation to take place.

The use of a compressed insulation, completely filling the roof void above the vapour control layer, together with the breathability of the Kalzip sheet seams, negates the need for a breather membrane material within the Kalzip roof system.


Kalzip’s range of insulation products includes glass mineral wool quilt and rock and glass mineral wool slab with the newly available ECOSE™ Technology, rock mineral wool quilt, semi-rigid slab and high density slab. At the heart of the range are Kalzip Insulation Plus 32, 35, 37 and 40, which are high performance mineral wool quilts offering extremely efficient thermal performance.

To complete the range further, glass and rock mineral wool insulants are available offering a wide variety of thermal performance values together with the flexibility of use where additional acoustic performance is required.

ProductThickness/m2
Kalzip Insulation Plus 35
Glass fibrequilt
1200mm wide rolls
Lambda W/Mk 2003 = 0.035
80mm - 8.40m2/roll (151.2m2/supakube)
100mm - 7.20m2/roll (129.6m2/supakube)
120mm - 6.00m2/roll (108m2/supakube)
140mm - 5.16m2/roll (92.88m2/supakube)
ProductThickness/m2
Kalzip Insulation Plus 40
Glass fibrequilt
1200mm wide rolls
Lambda W/Mk 2003 = 0.040
100mm - 13.50m2/roll (324.00m2/supakube)
120mm - 11.28m2/roll (270.72m2/supakube)
140mm - 9.62m2/roll (203.88m2/supakube)
160mm - 8.46m2/roll (203.04m2/supakube)
180mm - 7.51m2/roll (180.24m2/supakube)
200mm - 5.82m2/roll (139.68m2/supakube)
220mm - 5.22m2/roll (125.28m2/supakube)
ProductThickness/m2
Kalzip Insulation Plus 32
Glass fibrequilt 1200mm wide rolls
Lambda W/Mk 2003 = 0.032
90mm - 5.28m2/roll (126.72m2/supakube)
100mm - 4.8m2/roll (115.20m2/supakube)
120mm - 3.96m2/roll (95.04m2/supakube)
ProductThickness/m2
Kalzip insulation
Rock fibre slab
140140kg density
Lambda W/Mk 2003 = 0.035 
30mm - 5.04m2/pack
10 packs = 1 unit
1 unit = 50.40 sqm
40mm - 3.6m2/pack
12 packs = 1 unit
1 unit = 43.2 sqm
50mm - 2.88m2/pack
12 packs = 1 unit
1 unit = 34.56 sqm
75mm - 2.16m2/pack
10 packs = 1 unit
1 unit = 21.6 sqm
100mm - 1.44m2/pack
12 packs = 1 unit
1 unit = 17.28 sqm
ProductThickness S/m2
Kalzip Acoustic Rock fibre slab
100kg (Tissue faced - white as standard)*
Lambda W/Mk 2003 = 0.035
30mm - 7.2m2/pack
16 packs = 1 unit
1 unit = 115.2 sqm
Kalzip Acoustic Rock fibre slab
100kg/m2 (non-tissue faced)
Lambda W/Mk 2003 = 0.035
30mm - 7.2m2/pack
16 packs = 1 unit
1 unit = 115.2 sqm

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