20mm STEICOtherm Wet Square Edge Wood-Fibre Insulation Slab - 1350mm x 600mm
20mm STEICOtherm Wet Square Edge Wood-Fibre Insulation Slab - 1350mm x 600mm
- Product Code: A1-6958
- Delivery Time: 2 - 4 days
- Brand: Steico
- Model: 1350mm x 600mm - 0.81m2
- Weight: 2.43kg
Our ratings on 13-05-2026:
4.8 out of 5
20mm STEICOtherm Wet Square Edge Wood-Fibre Insulation Slab - 1350mm x 600mm
Length: 1350mm
Width: 600mm
Thickness: 20mm
Single Coverage: 0.81m2
Density: 150kg/m3
Weight/m2: 3kg
Weight: 2.43kg
Thermal Conductivity: 0.038W/mK
R-Value: 0.5m2K/W
20mm STEICOtherm Wet is an ecological, vapour-open insulation board designed for applications where moisture management and thermal mass are critical. The Square Edge (SE) profile makes it particularly suitable for internal wall insulation (IWI) and floor systems where a tight, flush fit is required between slabs.
Each board features a square‑edge profile and two distinct faces:
- a lighter, machine‑sanded side, designed as the plaster‑carrying face, and
- a darker, untreated side, which faces inward during installation.
CHARCTERISTICS
- Fibres bonded using the wood’s own lignin - no synthetic resins.
- Ensures clean, precise installation.
- Light, sanded face for plaster; darker face untreated.
- Low thermal conductivity for improved energy efficiency.
- Vapour‑open and hygroscopic for healthy building physics.
- Dense structure reduces airborne sound transmission.
- Renewable wood fibres with low embodied carbon.
- Fully recyclable and resin‑free.
APPLICATION
- External wall insulation (EWI) systems
- Timber frame external walls
- Pitched roofs (over‑rafter or between‑rafter)
- Internal wall linings
- Renovation and retrofit projects
- Eco‑builds and low‑energy home
CERTIFICATIONS
Steico_therm_technical-data-sheet.pdf
Brand: Steico
Model: 3m x 50m - 150m2
Delivery Time: 2 - 4 weeks
STEICOmulti Membra 5 is a reinforced, vapour-retarding membrane designed for internal use in roof, wall, and ceiling constructions. It is engineered to create a permanent airtight seal for the building envelope while managing the flow of water vapour into the insulation layer to prevent interstitial..
Brand: Steico
Model: 1190mm x 575mm - 2.72m2
Delivery Time: 2 - 4 days
140mm STEICOflex 036 is a flexible, high‑performance wood‑fibre insulation slab designed for exceptional thermal comfort, acoustic absorption and healthy building performance. Made from sustainably sourced wood and certified to rigorous European standards, it offers one of the best thermal conductiv..
Brand: Steico
Model: 1190mm x 375mm - 53.52m2
Delivery Time: 2 - 4 weeks
60mm STEICOflex 036 is a flexible, high‑performance wood‑fibre insulation slab designed for exceptional thermal comfort, acoustic absorption and healthy building performance. Made from sustainably sourced wood and certified to rigorous European standards, it offers one of the best thermal conductivi..
Brand: Steico
Model: 1350mm x 200mm
Delivery Time: 2 - 4 weeks
25mm STEICO Fix is a high-density, wedge-shaped insulation profile designed to sit directly beneath external window sills. Its primary function is to provide a thermally efficient, waterproof safety layer that directs any moisture or driving rain away from the structure and back to the outside of th..
Brand: Steico
Model: 2230mm x 600mm - 63.28m2
Delivery Time: 2 - 4 weeks
40mm STEICO Universal Dry is a high-performance, rigid wood-fibre board designed for both roof and wall applications. It is engineered to provide a wind-tight, weather-protecting "skin" for the building envelope. Using the dry manufacturing process allows for a board that is easier to handle than it..
Brand: Steico
Model: 1220mm x 575mm - 128.80m2
Delivery Time: 2 - 4 weeks
25mm STEICOflex 036 Inserts are designed to fill the "C" shaped void on either side of an I-joist web. By installing these inserts, you transform the irregular I-shape of the joist into a solid rectangular cross-section. This makes the subsequent installation of the main insulation layer much faster..