Redwood Thermowood
Redwood Thermowood is a timber that has been thermally modified in order to enhance its durability and stability. Redwood Thermowood uses Scandinavian Redwood and is baked to temperatures in excess of 215 degrees and uses steam and pressure. This process changes the cellular structure of the timber and results in an extremely durable timber that is ideal for a range of cladding applications.
Redwood Thermowood
During the heat treatment process, the timber undergoes chemical and structural changes that enhance its properties. The result of this environmentally-friendly treatment is Thermowood, which develops a darker colour compared to its original state.
The timber’s dimensional stability is significantly improved due to the reduced moisture content in each board. This minimises warping, swelling, and shrinking, making Thermowood Pine an excellent choice for timber cladding. Its stability also makes it well-suited for environments with fluctuating humidity, while its improved thermal insulation properties make it ideal for exposed areas.
Over time, Redwood Thermowood requires less maintenance than untreated timber. Its enhanced durability and natural resistance to rot reduce ongoing upkeep, a benefit largely attributed to the thermal modification process, which removes resins from the wood.
Origin
Scandinavia / Finland
Durability
Class 2 BS EN 350 – 2
Moisture Content
Approx. 5%
Density
Approx. 350kg/m3
Dimensions
Sizes available from 25 x 50mm to 50 x 200mm
Lengths
2.15m – 5.1m
Movement
Minimal Moisture Movement
Sustainability
PEFC Certified from well managed and regulated forests.
Treatment
Natural, Charred, Opaque, Translucent, Wood Stains, Burnblock, SiOO:X, Teknoclad Silver
Surface Finishes
There are a range of different surface finishes that we can offer, each one varying in appearance.
Once a preferred surface finish has been identified, we can offer options based on the most suitable timber species and coating systems.
Find out more about the surface finishes that we offer.
Planed
Planed timber has been machined to leave an elegant, smooth finish all the way around the board. As a result, a planed surface finish is a common choice when specifying timber cladding.
A planed finish is also referred too as a ‘dressed’ finish and is available in a wide range of timber species.
Sawn
A sawn face is produced by passing the timber through a band saw in order to leave a rustic and more textured finish on the face of the timber. A sawn face is popular in rural locations or where projects require more character from the cladding.
A sawn face can be applied to a range of timber species.
Structured (Wire Brushed)
Structuring is an in-house process where we remove the softer part of the grain from the timber, leaving the harder grain tightened, adding further character to the timber.
Structuring can also be referred to as wire brushing and can be carried out on a range of timber species. The depth of the structuring can vary from species to species depending on the timbers density.
Redwood Thermowood - RAL9005
Redwood Thermowood - Teknoclad Silver
Redwood Thermowood - SiOO:X Clear
Coating and Treatments
If left uncoated, Redwood Thermowood will naturally weather. We offer a range of coating systems for Redwood Thermowood in order to meet a range of design requirements. Due to the thermal modification process, Redwood Thermowood is well suited to opaque and translucent coatings, wood stains and pre-weathered coating systems.
Opaque Coatings
Opaque coating systems are a solid colour which delivers a consistent finish. Due to the high amounts of pigment in the coating the colour from the grain of the timber is hidden, resulting in a uniform finish to each length of timber.
Translucent Coatings
Translucent coating systems for external applications.
Translucent coating systems offer a natural and decorative appearance while providing optimal protection to a timber substrate. A careful balance of pigments and binders mean the coating accentuates the grain of the timber, delivering a natural appearance.
Depending on the coating manufacturer, translucent coatings can vary from either two or three coat systems.
Wood Stains
Wood Stain coating systems for external applications.
Wood Stain coating systems offer an extremely natural and rustic appearance. They are a matte finish with high penetration properties, which are low-film forming on the surface of the timber. Wood stain coating systems soak into the timber and offer excellent UV protection and high water vapour permeability.
Charred Timber
Our Charred timber cladding range has been created in order to offer a similar charred timber aesthetic, while overcoming the issues often encountered with the traditional treatment method.
Teknoclad Silver
Teknoclad Silver provided timber with an even, natural grey tone which erodes overtime and encourages a harmonious transition to natural weathering.
Omaze Lake District House
Structured
Chichester House (Grand Designs)
Structured
Reservoir Lane
Planed
Barnsnap House
Sawn
Starbucks
Planed
Rock Lobster
Planed
Testing Facility
We test our products using both accelerated weather testing machines and real world testing in our bespoke external testing programme, the first of its kind in the UK. Our testing field was designed and built in collaboration with our coating partners as well as brands like Accoya and Abodo. We even have our products on exposure testing in Malaysia and the Netherlands.
All of this information allows us to advise clients and architects on the most suitable specification for their project. It also allows us to demonstrate how different coatings perform on a range of timber species, as well as highlighting the issues that can be caused when a coating system is incorrectly specified.
Looking to start your project
For any pre-sale questions or general inquiries please use the contact form or details below and a member of our team will be in touch.