Thermopine® Clear exterior cladding

Thermopine® Clear cladding is a superb alternative to old-growth western red cedar cladding. Excellent durability and dimensional stability, a clean, knot-free appearance and attractive figuring make Thermopine Clear a popular choice.   

At a Glance

Species
Species

Radiata Pine

Origin
Origin

New Zealand

Appearance
Appearance
i

Knot-free timber

Appearance

Thermopine® Clear is virtually knot free, with attractive natural figuring throughout.

Grade
Grade
i

Follows our stringent in-house grading process, with every board graded by hand

Grade

Graded to have very few knots and attractive figuring throughout.

Coatings
Coatings
i

Can be coated with our range of oils, paint or SiOO:X

Coatings

Thermopine® Clear is factory coated in-house, with our water-based oil systems being especially well suited to this product. SiOO:X Wood Protection is also available — see the full range of finish options below.

Durability
Durability
i

Outstanding durability

Durability

Outstanding durability (Class 1 – 3 BS EN 350-2).

Stability
Stability
i

Good stability

Stability

Good stability, and narrower 100mm and 125mm boards offer additional stability over wider flatsawn boards. For wider boards, or applications requiring extra stability, we recommend considering Abodo® VG or Accoya.

Surface finishes
Surface finishes
i

Brushed, planed, or Microtex®

Surface finishes

Recommended surface finishes depend on the coating system and your project specification. Please contact our Specification Team for further information.

Fire retardant
Fire retardant
i

Suitable for treatment with Burnblock® fire retardant

Fire retardant

Select profiles are suitable for treatment with Burnblock®, please contact our Specification Team for further information.

Sustainability
Sustainability
i

FSC® certified

Sustainability

Thermopine® Clear is a rapidly renewable species which is sustainably sourced from fast-growing New Zealand plantation timber. EPD available.

Weathering
Weathering
i

Light grey

Weathering

Thermopine® Clear is usually supplied coated, however if left to weather naturally, will turn to a light grey colour over time.

Modified timber
Modified timber
i

Yes

Modified timber

Radiata Pine is modified using only heat and steam.

Density
Density
i

Low

Density

Low – classified by BS EN 350-2 as approximately 420 Kg/m³ at a moisture content of approximately 6-8%.

Application
Application
i

Suitable for most types

Application

Highly versatile, suitable for most cladding applications. Various lengths, including fixed lengths, available from stock. Can be combined with Abodo® VG for more demanding applications, such as wider or thicker sections.

See how Thermopine® Clear compares with other species.

Bonaly | Thermopine™ clear with SiOO:X Light Grey | Calum Duncan Architects | Fredrik Frendin Photography

Excellent dimensional stability makes Thermopine Clear an excellent coated product, usually supplied coated in SiOO:X for grey tones, or a water-based oil for black or woodier tones. A brushed finish is recommended, adding texture, depth and character.

Thermopine Clear is an ideal choice for those seeking a clear grade of timber and a high-quality, long-lasting cladding that has minimal dimensional movement. 

This cladding is crafted from radiata pine, which grows in FSC-certified plantation forests in New Zealand. Rich soils and high annual rainfall guarantee rapid growth and help it sequester more carbon than slow-growing tree species.  And despite the distance this product has to travel to reach the UK, it remains carbon negative due to the growing conditions, its thermal modification and its long lifespan.  

Johnshaven project with Imbue™ with a SiOO:X Mid Grey coating designed by Annie Kenyon Architects and photography by David Barbour Photography
Johnshaven extension | Thermopine™ Clear factory coated with SiOO:X Mid Grey | Annie Kenyon Architects Ltd | David Barbour Photography

Finishes

Learn more about our range of cladding surface finishes; from smooth, planed boards, to textured finishes specifically developed to enhance coating performance.

Planed

Planed

Planed boards are run through our planing mill to create a smooth, dressed finish. View our profiles page for available types and sizes in all species.

Brushed

Brushed

To create this effect, wire brushes are used to pull out the softer spring wood, exposing the harder summer wood, thus accentuating the grain and creating a beautifully textured surface. 

Microtex®

Microtex®

A fibrous surface finish designed to provide optimal performance of SiOO:X coatings.

Next steps

Architects & Specifiers

We offer a range of services to help with specifying our products.

Get a quote

Get in touch with our sales team to discuss your project.

Coatings

Thermopine® Clear can be factory coated with SiOO:X for a weather appearance at an accelerated rate or with one of our select range of oils.

Oil

Oil

A range of matt finishes which highlight the natural beauty and variation of timber.

SiOO:X

SiOO:X

SiOO:X Wood Protection eliminates differential weathering and provides a consistently weathered tone.

Paint

Paint

A traditional coloured paint finish in opaque and translucent options.

Profile options

Choose from our standard profile options below, available in various widths and lengths, including fixed lengths, to suit your project needs. We can also produce custom profiles and sizes to suit specific project requirements.

RW006

RW006

Standard widths: 90mm / 115mm
Standard thickness: 20mm

RW119

RW119

Standard widths: 90mm / 115mm
Standard thickness: 21mm

RW014

RW014

Standard widths: 90mm / 115mm
Standard thickness: 20mm

Open Rainscreen

Open Rainscreen

Standard widths: 90mm / 115mm
Standard thickness: 20mm

Questions?

With so many timber species, dimensions, profiles, coatings and fixing options to choose from, the possibilities are almost endless – which is exactly why pricing isn’t one-size-fits-all. To give you an accurate price, we first need to know more about your project.

Get in touch with our sales team for up-to-date pricing tailored to your specification. We’ll talk through your requirements and guide you to the best solution for your project and budget. To compare our cladding ranges, explore indicative price bands (£–££££) using our Compare Cladding Tool.

Yes, Russwood’s dedicated Specification Team can assist architects with selecting the best timber cladding species, coatings and fixings for their projects, ensuring both the performance and aesthetic requirements are met. We can also assist with writing the H21 (external timber cladding) National Building Specification (NBS). Find out more about the services we offer to architects.

To receive a quotation or place an order, get in touch with our sales specialists who will be happy to assist.

Samples can be ordered by contacting our sales specialists who can assist with selecting the most suitable cladding for your project and send out appropriate samples.

Our handy Cladding Comparison table allows you to compare species information and timber properties at a glance.

We offer UK wide delivery on all of our products. Please contact our sales specialists for a quote.

We can offer Thermopine® Clear in various lengths from stock, ranging from 2.4 – 5.7m, to suit your project needs. Fixed lengths are available. Please speak to a member of our cladding sales team for more information.

Expert View

Thermopine® Clear offers attractive figuring, few knots and superb durability, making it an excellent alternative to old-growth Western Red Cedar. It’s highly compatible with our SiOO:X coating system, allowing specifiers to eliminate the aesthetic concerns linked to natural weathering.

Michael Russell
Michael Russell Joint Managing Director

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