
Steico duo dry is specially made to improve airtightness, enhance insulation and give extra stability to external walls and pitched roofs. Made with sustainably sourced wood fibre, these insulation boards ensure a comfortable, cosy indoor all through the year.
In addition to superior insulation, they also give excellent fire resistance for up to 90mins, which is much better compared to wool or polystyrene insulation. Moreover, they also give superior sound insulation meaning they help soundproof walls and roofs.
Wood fibre render-carrier boards are water-resistant, yet they are damp-open which in turn helps minimise condensation and other moisture-related issues in the application. This wood fibre insulation is certified for use in new builds and retrofits.
The Steico duo dry render carrying board is an eco-friendly and lightweight solution. It comes with tongue and groove profiling that not only enables easy installation but also minimises thermal bridging in walls and roofs. With its T&G profile, these wood fibre boards also help improve airtightness, thus making your building not only eco-friendly but also energy-efficient.
Product Details:
| Length (mm) | Width (mm) | Thickness (mm) |
| 2230 | 600 | 40 |
| 2230 | 600 | 60 |
Key Features:
- Sustainable and eco-friendly wood fibre insulation for roofs and external walls.
- This insulation board can be used as an external sheathing for timber frame constructions. Gives extra insulation to the external facade.
- Water-resistant wood fibre insulation, yet damp-open. Helps with condensation.
- Render-carrying board for external wall application.
- Wood fibre insulation boards give extra fire resistance, for up to 90mins.
- Tongue and groove profiling for improved airtightness and wind resistance.
- Lightweight insulation boards, easy to install.
Applications:
Steico Duo dry wood fibre boards can be used on:
- Pitched roofs: As external sheathing board for pitched roof applications or timer frame constructions. Gives extra stability to the structure.
- External walls: As render-carrying boards for external walls. Sheathing boards for masonry applications in external walls.
- Internal plaster carrying board for direct fixing to timber frames without the need for a supporting backer board
- Insulated wall panel for use behind a rain screen
- One wood fibre board covers 1.268sq.m
- Wood fibre insulation board for improved thermal insulation all through the year
- Combined insulated sheathing and render wood fibre board
- Offers good acoustic insulation
- Gives fire resistance for up to 90mins
- The tongue and groove profiling of this sheathing board improves airtightness
- Sustainable and FSC® certified
| Insulation Type | Plaster/ Render Carrier Boards |
| Brand | Steico |
| Product Code | Steico Duo Dry |
| Length | 2230mm |
| Width | 600mm |
| Thickness | 40 and 60mm |
| Single Board Coverage | 1.268sq.m |
| Thermal Conductivity | 0.043 [W/ (m*K) |
| Fire Classification | Class E |
| Edge Profile | Tongue and Groove on all 4 sides |
| Compressive Strength | 200 kPa |
| Application | External walls and pitched roofs |
| Delivery Terms | |
|---|---|
| Pallet Charges apply to deliveries. £90/£120 +VAT per pallet (depending on the product sizes) |
Delivery: Delivery charges are calculated accordingly. If you have bulk requirements, please email us for a quotation
Receiving Delivery: We urge you to check the delivery properly for any damages as soon as you receive the order. Any damages must be mentioned in the delivery note before the driver leaves otherwise we will be unable to replace damaged goods.
If you are unsure, please call us.
Returns, Cancellations and refunds:
You are free to cancel your order before we send you an order confirmation email and get a full refund

