Tongue and groove thermowood 360cm (22x150mm)

Tongue and Groove Thermowood 360cm (22x150mm)

The Tongue and Groove Thermowood 360cm (22x150mm) is a premium thermally modified wood cladding board designed for excellent stability, durability and a modern natural look. The thermal modification process enhances the wood’s performance by reducing moisture absorption and improving dimensional stability, making it ideal for demanding interior and exterior applications.

With dimensions of 3600mm in length, 22mm in thickness and 150mm in width, these boards provide a strong and reliable cladding solution for façades, garden buildings and architectural timber projects.

Key Benefits

• Thermally modified wood for improved durability.
• High dimensional stability and reduced warping.
• Strong tongue and groove connection for a seamless finish.
• Chemical-free heat treatment process.
• Suitable for exterior and interior use.
• Natural and modern wood appearance.
• Robust 22mm thick profile for long-term strength.

Applications

This thermowood tongue and groove cladding is suitable for a wide range of projects, including:

• Facade cladding
• Garden rooms
• Saunas
• Summer houses
• Cabins
• Exterior wall cladding
• Interior feature walls
• Architectural timber designs

Specifications

Installation

Install the boards on a ventilated and level subframe to ensure long-term performance. Allow sufficient airflow behind the cladding and use stainless steel or corrosion-resistant fixings to prevent staining. It is recommended to acclimatise the boards before installation for optimal results.

Maintenance

Thermowood requires minimal maintenance due to its improved stability. For exterior use, a UV-protective oil or finish can be applied to preserve its original colour. Without treatment, the wood will naturally weather to a silver-grey patina over time.

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How to Install Thermowood Tongue and Groove Cladding

1. Prepare a straight and ventilated timber framework.
2. Allow the boards to acclimatise before installation.
3. Install a breathable membrane if required.
4. Start fitting from the bottom upwards.
5. Connect boards using the tongue and groove profile.
6. Fix with stainless steel or corrosion-resistant screws.
7. Ensure proper ventilation behind the cladding.

Frequently Asked Questions

What is Thermowood?

Thermowood is wood that has been heat-treated at high temperatures without chemicals to improve durability, stability and moisture resistance.

Is Thermowood suitable for outdoor use?

Yes. It is specifically designed for exterior cladding applications such as façades, garden buildings and architectural projects.

Does Thermowood require maintenance?

Minimal maintenance is required. A UV-protective finish can be applied to maintain colour, otherwise it will naturally grey over time.

Can it be used indoors?

Yes. It is also ideal for interior walls, saunas and decorative timber applications.

Which fixings are recommended?

Stainless steel or corrosion-resistant fixings are recommended to ensure durability and prevent staining.