HOMATHERM flexCL 040 is a very practical insulation material in flexible batt form, made from recycled newspaper and recycled jute sacking. The material is treated with borax to resist insects and to make the insulation fire-resistant. The material is very comfortable to work with, and can be readily cut to fit where necessary. Installation is safe and easy, protecting the health of both installers and building occupants.
Homatherm improves the climate in the building because of its thermal and vapour diffusion capacity - the ability both to regulate temperature and to absorb moisture and gently give it off again. It protects the structure and keeps it dry, prolonging the lifetime of the building fabric.
Homatherm can be used between rafters, joists and timber studs in breathing constructions. It can also be installed as a partial fill insulation for cavity wall construction with a ventilated air gap.
HOMATHERM flexCL 040 batts are high-density semi-rigid insulation slabs made from recycled newsprint and 7 - 10% polyolefin fibres.
The cellulose fibres enable the insulation to absorb up to 17% moisture without losing on thermal performance. And since moisture is absorbed by the insulation, not the timbers, structural timbers without preservative treatment can be used.
The polyolefin fibres enable the slabs to be flexible in all directions (their inclusion also resulting in a significant reduction in the embodied energy of the product).
The density of the batts (typically 60-90 kg/m³) ensures superior acoustic performance relative to mineral wool insulation materials whilst the excellent specific heat capacity of the batts ensures that FlexCL batts not only insulate during the winter, but also prevent summer overheating (2.4 times better than a mineral wool of equivalent density).
• Suitable for floors, walls, and roof constructions
• Suitable for partial fill cavity wall construction
|Raw materials||Cellulose from newsprint|
|Fire protecting agent||Borax, Boric Acid|
|Hydrating agent||Aluminium sulphate|
|Batt size||1200 x 625 mm|
|Batt thickness||50 / 80 / 100 / 140 / 160 mm|
|Coverage per pack||4.5 / 3.0 / 2.25 / 1.5 / 1.5 m²|
|Coverage per pallet||63 / 42 / 31.5 / 24 / 21 m²|
|Density, ρ||60 - 90 kg/m³|
|Thermal conductivity, λ10||0.039 W/ m.K|
|Thermal conductivity, λR||0.040 W/m.K|
|Specific heat capacity, c||2000 J/Kg.K|
|Diffusion resistance, µ||1,2|
|Tensile strength||≥ 6 kN/m²|
|Tear strength||≥ 3 kN/m²|
|Fire rating||Class B2|
• Certification Z-23.11-1338 (DIBt)
|Date published||Title||File size||Document type|
|167 KB||Product sheet|
|12 KB||Technical data sheet|
|390 KB||Technical data sheet|