Product Details

Description

STEICO Internal (wet) wood fibre insulation boards offer a high-performance solution for internal insulation of masonry and timber frame structures. Certified by the German Institute for Building Biology Rosenheim, these boards support natural moisture regulation and protect building integrity through their diffusion-open and sorptive properties. Compatible with lime and clay plasters, they contribute to a healthy indoor climate while maintaining building physics safety. Ethically sourced from PEFC-certified responsible forestry, STEICO Internal (wet) ensures sustainability alongside effective insulation.

What does "wet" mean? 
In the wet process, the soaked fibres are formed into panels. Then the panels are calibrated in thickness and dried as whole pieces. The clever bit: in the wet process, the wood's own natural lignin binds the panels. This means that no external adhesives are required, making wet-process insulation boards very eco-friendly and beneficial for your living environment. 

Key Points
Can be combined with recommended Lime and Clay plasters
Contributes to the regulation of indoor air moisture
Diffusion open and sorptive - natural moisture management to protect the construction
Specification
Length 1200mm
Width 380mm
Density 160 kg/m³
Water Vapour Diffusion Resistance
Specific Heat Capacity 2,100 J/(kg*K)
Compression Strength 50 kPa
Declared Thermal Resistance [(m²*K)/W] 40mm = 1.05 / 60mm = 1.55 / 80mm = 2.10 / 100mm = 2.60
SD Value [m] 40mm = 0.20 / 60mm = 0.30 / 80mm = 0.40 / 100mm = 0.50
Application

Internal masonry and timber frame walls.
Can be plastered.

Description

STEICO Internal (wet) wood fibre insulation boards offer a high-performance solution for internal insulation of masonry and timber frame structures. Certified by the German Institute for Building Biology Rosenheim, these boards support natural moisture regulation and protect building integrity through their diffusion-open and sorptive properties. Compatible with lime and clay plasters, they contribute to a healthy indoor climate while maintaining building physics safety. Ethically sourced from PEFC-certified responsible forestry, STEICO Internal (wet) ensures sustainability alongside effective insulation.

What does "wet" mean? 
In the wet process, the soaked fibres are formed into panels. Then the panels are calibrated in thickness and dried as whole pieces. The clever bit: in the wet process, the wood's own natural lignin binds the panels. This means that no external adhesives are required, making wet-process insulation boards very eco-friendly and beneficial for your living environment. 

Key Points
Can be combined with recommended Lime and Clay plasters
Contributes to the regulation of indoor air moisture
Diffusion open and sorptive - natural moisture management to protect the construction
Specification
Length 1200mm
Width 380mm
Density 160 kg/m³
Water Vapour Diffusion Resistance
Specific Heat Capacity 2,100 J/(kg*K)
Compression Strength 50 kPa
Declared Thermal Resistance [(m²*K)/W] 40mm = 1.05 / 60mm = 1.55 / 80mm = 2.10 / 100mm = 2.60
SD Value [m] 40mm = 0.20 / 60mm = 0.30 / 80mm = 0.40 / 100mm = 0.50
Application

STEICO Internal (wet) wood fibre insulation boards offer a high-performance solution for internal insulation of masonry and timber frame structures. Certified by the German Institute for Building Biology Rosenheim, these boards support natural moisture regulation and protect building integrity through their diffusion-open and sorptive properties. Compatible with lime and clay plasters, they contribute to a healthy indoor climate while maintaining building physics safety. Ethically sourced from PEFC-certified responsible forestry, STEICO Internal (wet) ensures sustainability alongside effective insulation.

What does "wet" mean? 
In the wet process, the soaked fibres are formed into panels. Then the panels are calibrated in thickness and dried as whole pieces. The clever bit: in the wet process, the wood's own natural lignin binds the panels. This means that no external adhesives are required, making wet-process insulation boards very eco-friendly and beneficial for your living environment. 

Datasheets, Guides & Documents

Replacement for Steico Therm (wet)
This product now replaces Steico Therm (wet).

STEICO Internal (wet)

Internal (wet) by Steico
40 mm Thickness
0.038 W/mK Thermal conductivity
0.456 m² Coverage
Regular price
£6.24 per item
Unit Price
£13.68 per m²
inc. VAT
Ex-Vat Price
£5.20 per item
Unit Price
£11.40 per m²
ex. VAT
Regular price
£0.00 Save £-6.24
Sale price
£6.24 per item
Unit Price
£13.68 per m²
inc. VAT
Regular price
£0.00 Save £-5.20
Ex-VAT Price
£5.20 per item
Unit Price
£11.40 per m²
ex. VAT
In Stock (More than 40 available)
Estimated delivery: 1 - 2 working days

If this product is showing out of stock please contact our team, as we have deliveries coming in frequently.

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Product Code: SKU: STE/INTSE-40

MPN (Manufacturers Part Number): MPN: 384297

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