BRIMSTONE PRODUCTS

TRANSFORMING BRITISH WOODS

Wood is one of the world’s most loved and trusted building materials. It’s beautiful, tactile and creates a sense of wellbeing and authenticity – used inside or out. To produce Brimstone, we simply take fast-grown British hardwoods and apply intense heat to spark a transformation. This chemical free process rapidly reconfigures the cell structure of the wood, creating a more durable, stable and consistent material. And because it’s drawn from UK-based woodlands, it also helps to keep our own native flora and fauna thriving.

USES

EXTERNAL CLADDING

Being stable, durable and lightweight, Brimstone products are ideal for external timber cladding. Because thermally modified wood is free from extractives, Brimstone wood cladding will weather more evenly than non-modified wood, and with less of the unsightly staining often seen on species such as cedar and oak.

HARDWOOD DECKING

Brimstone ash is perfectly suited to outdoor decking applications. The improved hardness, stability and durability make thermally modified ash a viable alternative to tropical hardwoods such as Ipe. Brimstone poplar and sycamore are not suitable for decking.

OUTDOOR FURNITURE

All three Brimstone species are suitable for use in external joinery and furniture. Being very stable and free from extractives Brimstone wood performs well out in the elements. However be aware that all thermally modified wood is brittle and will resist water based glues and treatments.

THE BRIMSTONE STORY

Brimstone wood was born out of the need to find ways to reverse the decline in the use of British-grown hardwoods and the associated decline in woodland management.

It is estimated that over 60% of British mixed woodlands are either under-managed or completely unmanaged. The problem cannot be solved at Government level because the majority of broadleaf woodlands are in private hands. The logical solution is to stimulate demand for woodland products, creating a financial incentive for land owners to manage their woodlands.

In 2015 a major feasibility study was undertaken by BRE in collaboration with Grown in Britain, Timber Strategies, Vastern Timber and Tyler Hardwoods, to investigate thermal modification of British hardwoods. The findings were clear: ‘Thermal modification represents the perfect opportunity to dramatically increase the use of white hardwoods and transform the management of British broadleaf woodlands.’

Case Studies

Read about our recent projects and uses of Brimstone timber products

Architect brings in Brimstone for Grade II listed Farmhouse project

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Lighthouse Mews. A stunning showcase for Brimstone Ash

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Vastern Timber takes on affordable housing project in Shropshire

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Architect brings in Brimstone for Grade II listed Farmhouse project

Top architect Kris Eley needed a reliable and long-term timber component for his client’s Grade II listed farmhouse extension. But could he find a wood that lived up to his vision?

Kris Eley and his client had been working on the external renovation and extension of a Grade II listed farmhouse. They wanted the design to be contemporary, rather than a pastiche of the old building. They decided that a glass and vertical timber clad design would suit the brief.

That’s what brought Kris into the Vastern Timber’s showroom with the client to take a look at our cladding samples. Due to the design the cladding needed to look fresh and modern, be hardwearing and come with as fewer knots as possible. More importantly, however, the cladding had to stay straight and true. The layout is a 20 x 55mm square batten fixed vertically with a 5mm gap so it is very important that the battens did not warp or distort in years to come.

Vastern Timber introduced them to Brimstone. The Brimstone range includes thermally modified ash, sycamore and poplar, sourced from native woodlands. Thermally modified wood (TMW or TMT for short) is produced by super heating timber to temperatures of between 160° and 210°. It had many benefits that appealed to Kris including being a locally grown product.

One of the most impressive outcomes of thermal modification is improved stability. This means that, wet or dry, hot or cold, the amount of shrinkage and expansion in the modified wood is minimal. The second key advantage of super-heating wood is that it converts wood species that would normally rot when left outside (non-durable) into products that will last for many decades untreated. Finally, the products in the Brimstone range contain relatively few knots, resulting in a clean and contemporary appearance. Perfect for the farmhouse.

Moreover, Brimstone represents a real opportunity to improve the management of our mixed woodlands by creating a demand for lesser-used white hardwoods. Vastern Timber supplied 3200mts of 20x55mm cladding for the project some of which was pre-weathered on site so that the cladding under the deep soffits would be the same colour as that on the vertical elevations.

Both architect and client were so happy that Vastern Timber also supplied sweet chestnut in a similar format for the ceiling of the kitchen, and for the internal window reveals and window boards.

Lighthouse Mews. A stunning showcase for Brimstone Ash

A striking and contemporary residential new build project in De Beauvoir Town, North London was the site for the first major residential installation of Brimstone – Vastern Timber’s award-winning range of thermally modified timber.

Stephen Donald Architect (SDA) had secured planning permission for four residential units on land owned by the client – a construction company of long-standing who had decided to transform the land from a builders’s yard into sustainable residential homes.

SDA approached Modernarc of London to assist in delivery of the project. Modernarc specialises in the design and construction of bespoke interiors, small buildings, joinery and furniture for both commercial and private clients. As Andrew Wong of Modernarc explains “Timber cladding was specified on the planning drawings and application for the project, but specific timber had not been decided. The architect investigated a number of timber cladding options, but ultimately settled on using Brimstone ash.

Tom of Vastern Timber recommended Brimstone ash, in part because of its inherent stability and also because it weathers well, even in shaded and potentially polluted city centre environments. The design dictated clean straight lines, which called for a stable cladding material that would remain straight over the long term. Being in a city centre location, it was also important that the cladding did not become patchy or blacken, a common problem with more reactive species such as cedar when left untreated. Andrew Wong from Modernarc said:

"A year on from installation the cladding looks really good, It has weathered to a nice silver colour, which we expected, and looks very handsome. It was our first time working with this product, but we found it easy enough, especially with technical assistance from Vastern Timber. Working with the team at Vastern is always a pleasure as they are very helpful and reliable. Deliveries are always on time and they're flexible to fit in with our programme."

The finished project features three 2 bedroom homes and one 3 bedroom home, all of which have an inverted design with bedrooms on the ground floor and living spaces on the first floor. Each property has its own outside space and first-floor balcony.

Vastern Timber has worked with Modernarc on several previous projects, and recognises the company to be unafraid to try new products. Modernarc is also keen on sourcing materials locally where possible, so Brimstone ash was a perfect fit for this project, as Modernarc’s Paddy Heffernan explained:

"Brimstone was chosen to give the houses a different look to the more conventional cladding materials available, and also for its resilience which reduces ongoing maintenance costs. We are now building another house immediately adjacent and as planning conditions stipulate materials that should match the four properties, we are once again using Brimstone."

Vastern Timber worked closely with Modernarc to provide exactly the right aesthetic for the project, supplying vertical cladding to a bespoke profile and design. The layout alternated 20 x 70mm planed square boards with 35 x 35mm projecting fins, each separated by a 5mm gap. The boards and fins were face fixed with stainless steel pins. In total 2,000 metres of each section were supplied, plus sections for the doors and windows.

Vastern Timber takes on affordable housing project in Shropshire

When senior architect and ‘Passivhaus’ Designer George Mikurcik was set the challenge of cladding an entire housing development, he knew exactly who to turn to.

Much Wenlock is an affordable housing scheme in Shropshire, offering 12 homes of various sizes. Built by the housing association, the development aims to sit comfortably in its rural surroundings, thanks in part to its UK sourced natural materials. The design instructed that each house was to be clad in modified hardwood. George knew that Vastern Timber’s Brimstone would fit the bill perfectly.

Brimstone is thermally modified, which means it has been heated up to 210°. This gives the wood many beneficial qualities. One being that, no matter what the temperature or level of humidity, the wood barely shrinks or expands. Exposure to intense temperatures also means the wood becomes hardier, and able to last outside for many decades, without being treated and without any danger of it rotting. It is relatively knot-free, too, giving a cleaner, more consistent quality. Important, especially when you have a large area to cover.

The Brimstone range is GIB certified, which means that architects and builders can be sure of provenance and good woodland management. Indeed, it is the only scheme that focuses 100% on British woodlands by creating a demand for lesser-used white hardwoods.

On George’s approval, we supplied 15,000 mts of Brimstone poplar 20 x 95mm. Half to profile VHL4 for vertical orientation on the ground floor elevations, and the other half to profile VHL6 for horizontal orientation on first floor elevations. The cladding was fitted with a second fix nail gun rather than first fix gun, using two 50mm stainless steel brad nails at each fixing point. Usually this is not recommended for other species, but the stability of Brimstone makes this a possibility. This reduced the amount of visual damage at each fixing point. After testing this fixing technique on this project we are now recommending it for other projects.

The project demonstrates that Vastern Timber can supply large commercial contracts with a high quality British product. George was so enthused by the result that he used Vastern Timber’s Brimstone ash decking outside his own Passive home too.

‘Endeavour’, stunning new build home in Malvern

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Private House on Isle of Man

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Self Builder selects Brimstone ash to clad entire house

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‘Endeavour’, stunning new build home in Malvern

A contemporary new house in Malvern, Worcestershire has been attracting a lot of attention since it was completed in the summer of 2017. The three-storey hillside house – named ‘Endeavour’ – has featured on TV’s Grand Designs and in national newspapers, and is notable for the clever use of Brimstone poplar vertical cladding that accentuates the building’s bold lines.

The owners Jon and Gill Flewers returned to the UK from New Zealand in 2013 with a dream of building their own home. After scouring the country they settled on the rural delights of Malvern and bought a plot of land on a north-facing hillside that overlooked an Area of Outstanding Natural Beauty.

Designed by local architect Nick Carroll, the 210m sq low-energy house features five bedrooms and four bathrooms in an ‘upside-down’ configuration with kitchen and open-plan living spaces on the third floor, and bedrooms on the first floor. The ground floor houses the garage, workshop and entrance hall. The house took over a year to build and cost £600,000.

Brimstone poplar was the perfect choice for the vertical cladding on this design. Machined to a bespoke design requested by Jon Flewers (who project managed the build himself), Brimstone thermally modified poplar is ideal for cladding on contemporary designs and is the most popular product in the Brimstone range. The wood is lightweight and the grain is silky.

Installation of the cladding was simple, as architect Nick Carroll explained to the Grand Designs team. “With an insulating concrete framework system, all that was required was to nail the timber batten cladding on the outside of the house and fit the plasterboard to the inside as normal.”

‘Endeavour’ has been constructed to near Passivhaus standard and the use of Brimstone further supports the design’s sustainability.

Brimstone is sourced exclusively from native woodlands and the thermal modification process reconfigures the wood to deliver a material of exceptional stability, durability and aesthetic uniformity that is resistant to water and fungus – the main cause of wood decay.

Brimstone represents new levels of sustainability for specifiers of timber as the raw material is locally grown and the modification process does not rely on impregnating the timber with chemicals.

Private House on Isle of Man

With many years’ experience as a property developer, Henry Kennaugh on the Isle of Man both understands the importance of quality and is not afraid of innovation.

When Henry was asked to rectify work on a substantial private house following the collapse of the previous builder’s business, his challenge was to not only repair poor work that had already been done, but to deliver an extremely high-quality finished solution for the home owner.

The project, which lasted a year and cost around £2million, involved stripping a 6,000 square feet swimming pool / spa extension of the property back to its steel frame, as the poorly installed tropical timber cladding had no blockwork behind it, only stud partition. This task required the installation of correct walls before re-cladding.

The roof of this extension was to include a roof garden that required decking.

Henry had previously visited Timber Expo 2016 where he first encountered Brimstone thermally modified timber on the Vastern Timber stand, and he was impressed enough to realise it would be the perfect material for this high value project.

As well as Brimstone, Henry also chose to use an innovative deck support system from Eurotec of Germany (another innovation encountered at Timber Expo). As Henry explains:

“The Eurotec system features plastic self-levelling feet with spacers and aluminium track to carry the decking boards, so there is nothing under the boards that can go rotten. We chose not to use a secret fixing system that doesn’t show screws as we don’t think they are strong enough for hard wood decking. So we face-fixed all of the Brimstone decking. The Eurotec system pulls screws to under 1mm below the surface of the decking and looks amazing as you only see screws from a few metres from where you’re standing.”

"Decking using typical timber can often ‘dish’, but the Brimstone decking has proved very stable. It has stayed rigid, hasn’t moved and no joints have opened. Plus, the cladding has weathered very well since installation."

Vastern Timber supplied 6,000m of Brimstone ash for this project, including decking (VDEC2), cladding (VTG5a), and corner and soffit mouldings. Such was the scope of the project that the decking alone took 10 weeks to install. To ensure the best results, Henry Kennaugh installed a tent over the project to ensure dry conditions for installation.

Self Builder selects Brimstone ash to clad entire house

When commercial interior designer Alex Clifford embarked on a project to renovate a 1950s bungalow on the edge of Guilford it soon became apparent that his options provided within planning permission for refurbishment were limited.

Alex had initially planned to remove and replace the roof while extending outwards. Timber cladding the entire project was always part of his plan. However, when he costed the project he realised that he would achieve a better result and also satisfy his long-held ambition to build his own house if he simply demolished the building and started from scratch.

The site of the house offers stunning views over surrounding countryside. As an experienced project manager Alex has considerable experience of timber frame and timber clad projects. His design for a 3000sq ft two floor five bedroom house would be built to passivhaus standards and would be a twin wall timber frame design using 320mm thick panels filled with cellulose blown insulation. The design would also feature extensive exterior cladding using Brimstone ash, including for use on barge boards and gable ends.

"While the house is clearly modern, it has been designed with consideration for the local environment and traditional styling. The house has been designed to take account of solar gain and features external programmable venetian blinds as part of the home automation system."

Considerable thought went into the design and energy performance of the house, including orientation of the building, the layout, windows, overhangs, and solar control. Energy efficiency and sustainability became an increasing focus as the project progressed. It was this focus on sustainability that informed the decision to use Brimstone as Alex felt uncomfortable specifying alternatives that used timber sourced and transported vast distances internationally. The alternative I originally considered had straight grain, but I wanted something more patterned and interesting.

"I chose a machined tongue and groove profile with a shadow gap profile that would use secret fixings. It looks very good on the building and the Brimstone is very good for crisp detailing. I like the fact that Brimstone uses British sourced timber and has a lower environmental impact than alternatives. This fits with the focus on sustainability that has underpinned the project."

BENEFITS

Sustains and improves local woodlands

Sustains and improves local woodlands

Naturally durable

Naturally durable

More stable than non-modified wood

More stable than
non-modified wood

No extractives

No extractives

No added chemicals

No added chemicals

BRIMSTONE WOOD PRODUCTS

The Brimstone range includes three thermally modified hardwood species, all of which are grown in British woodlands.

Brimstone Ash logo

Perfect for cladding, decking and furniture. Being the hardest of the Brimstone range, thermally modified ash is suited to the widest range of applications. Ideal for cladding, decking and furniture, Brimstone ash has a dark chocolate-brown colour while retaining the strong grain of natural ash.

BRIMSTONE ASH

Produced from ash (Fraxinus excelsior) grown in English and Welsh woodlands, Brimstone ash is the most popular product in the range. The pronounced grain and dark chocolate colour (think 70% cocoa) of Brimstone ash offers a locally grown alternative to tropical hardwoods.

Thermally modified ash has already gained popularity in the UK, although until now, it has all originated from the US and mainland Europe. Brimstone ash is the first British thermally modified ash product. Brimstone ash compares favourably on both price and quality with imported products and is available in a wider range of formats and profiles.

Being the hardest and strongest of the Brimstone range, the thermally modified ash is suited to the widest variety of end uses. Brimstone ash is an ideal option for external cladding, decking and outdoor furniture.

TECHNICAL SPECIFICATION

TRADE NAME

Brimstone ash

BASE TIMBER

English ash

SPECIES

Fraxinus Exclesior

PROCESS

Thermal modification. 210 degrees centigrade.

ORIGIN

Legal and well-managed forests in England and Wales.

INTENDED USE

External cladding

OTHER USES

Decking, external joinery and furniture

APPEARANCE

Consistent dark chocolate brown colouring with a clearly defined grain pattern. The colour is further enhanced by the application of a clear oil such as Osmo UV resistant oil.

WEATHERING

The modification process removes most natural extractives resulting in relatively consistent weathering largely free of staining. Weathering to a grey colour occurs more quickly than on non-modified timber.

PROFILES

All machined profiles

DIMENSIONS

20 x 95mm, 20 x 120mm, 20 x 145mm

LENGTHS

Random. 1.5 – 3.0mt+

MOISTURE CONTENT

2-4% (Moisture content is stable in exterior conditions)

NATURAL DURABILITY (EN350-2)

Very Durable. Class 1 (Above ground use only)

INSECT ATTACK

Thermally modified wood is resistant to insect attack when used above ground contact.

DESIRED SERVICE LIFE (BS8417)

Occasionally wet 60 yrs
Frequently wet 30 yrs

Treatability class

Resistant

Movement class

Small

Resistance to impact

Medium to high

Resistance to fixing

High. Modified wood is brittle and should be treated with care.

When to fix

Year round. Very stable in all conditions.

Grading

BS1186-3 1990 Class 1. EN942:2007. J20. CE grade A. Clean with a few small sound knots.

Working properties

Thermally modified woods are more brittle than untreated wood. Care should be taken when cutting and nailing to prevent chipping and break out. Pre-drilling is advised. Test glues before large-scale use. Water based glues do not work well. PU glues have tested well. Otherwise treat as a normal hardwood.

Extractives

The modification process involves no chemicals and any natural chemicals in the wood are removed during the process. Thermally modified wood can be treated as inert.

Emission of formaldehyde (EN14915)

E1 (Not significant)

Reaction to fire (EN14915)

Euroclass F (Untested). D-s2, d0

Fire treatment

Untested

CE compliant

Yes

While the utmost care has been taken to provide accurate information, Vastern Timber shall not be held responsible for any consequences arising from any errors or omissions on this website nor for any damages resulting from the use of the information.

Brimstone Sycamore logo

Perfect for cladding and furniture. The natural characteristics of sycamore and its silky grain make Brimstone sycamore an extremely attractive option for cladding and furniture (although as a softer wood it is not suitable for decking applications).

BRIMSTONE SYCAMORE

Normally prized for its creamy white colour and rippled grain, British sycamore (Acer pseudoplatanus) is an ideal specie for thermal modification. The tree grows like a weed, adding volume quicker than any other hardwood specie in our native woodlands, and is widely available.

Brimstone sycamore is paler in colour than both ash and poplar (think 40% cocoa). The surface is silky and the grain is noticeable, especially on the crown cut boards. The natural ripple in the grain is accentuated by the modification process, resulting in a beautiful visual effect.

Brimstone sycamore makes stunning cladding boards and is also well suited to furniture and joinery applications.

TECHNICAL SPECIFICATION

TRADE NAME

Brimstone Sycamore

BASE TIMBER

English sycamore

SPECIES

Acer pseudoplatanus

PROCESS

Thermal modification. 210 degrees centigrade.

ORIGIN

Legal and well-managed forests in England and Wales.

INTENDED USE

External cladding

OTHER USES

External joinery and furniture

APPEARANCE

Consistent light chocolate brown colouring with a silky grain pattern. The colour is further enhanced by the application of a clear oil such as Osmo UV resistant oil.

WEATHERING

The modification process removes most natural extractives resulting in relatively consistent weathering largely free of staining. Weathering to a grey colour occurs more quickly than on non-modified timber.

PROFILES

All machined profiles

DIMENSIONS

20 x 70mm, 20 x 95mm, 20 x 145mm

LENGTHS

Random. 1.5 – 3.0mt+

MOISTURE CONTENT

2-4% (Moisture content is stable in exterior conditions)

NATURAL DURABILITY (EN350-2)

Very Durable. Class 1 (Above ground use only)

INSECT ATTACK

Thermally modified wood is resistant to insect attack when used above ground contact.

DESIRED SERVICE LIFE (BS8417)

Occasionally wet 60 yrs
Frequently wet 30 yrs

Treatability class

Resistant

Movement class

Small

Resistance to impact

Medium

Resistance to fixing

High. Modified wood is brittle and should be treated with care.

When to fix

Year round. Very stable in all conditions.

Grading

BS1186-3 1990 Class 1. EN942:2007. J20. CE grade A. Clean with a few small sound knots.

Working properties

Thermally modified woods are more brittle than untreated wood. Care should be taken when cutting and nailing to prevent chipping and break out. Pre-drilling is advised. Test glues before large-scale use. Water based glues do not work well. PU glues have tested well. Otherwise treat as a normal hardwood.

Extractives

The modification process involves no chemicals and any natural chemicals in the wood are removed during the process. Thermally modified wood can be treated as inert.

Emission of formaldehyde (EN14915)

E1 (Not significant)

Reaction to fire (EN14915)

Euroclass F (Untested). D-s2, d0

Fire treatment

Untested

CE compliant

Yes

While the utmost care has been taken to provide accurate information, Vastern Timber shall not be held responsible for any consequences arising from any errors or omissions on this website nor for any damages resulting from the use of the information.

Brimstone Poplar logo

Perfect for cladding. Being the cheapest and most plentiful Brimstone wood, thermally modified poplar is our most popular product. The wood is lightweight and the grain is silky, making it ideal for cladding (although its soft, brittle nature makes it unsuitable for furniture or decking).

BRIMSTONE POPLAR

Poplar is an extremely useful tree. As it grows, the tree absorbs and dissipates huge volumes of water and locks up many tonnes of carbon in its mighty stem. Now plentiful due to a lack of match and paper making in the UK, poplar is a raw material looking for a use.

The thermal modification process cures two of poplar’s biggest problems – instability and liability to rot when left outside. Brimstone poplar is both stable and durable.

Thermally modified poplar is a dark brown colour (think 60% cocoa) and has a smooth silky appearance. The timber is relatively knot free apart from distinctive patterns of small pinhead sized knots.

Being the softest of the three Brimstone products the poplar is not suitable for decking and may not be suitable for some furniture and joinery applications. However Brimstone poplar is the cheapest of the Brimstone range, at a price point well below that of Canadian cedar, making it an ideal choice for contemporary cladding installations.

TECHNICAL SPECIFICATION

TRADE NAME

Brimstone Poplar

BASE TIMBER

English poplar

SPECIES

Populus (Hybrid)

PROCESS

Thermal modification. 210 degrees centigrade.

ORIGIN

Legal and well-managed forests in England and Wales.

INTENDED USE

External cladding

OTHER USES

External joinery and furniture

APPEARANCE

Consistent dark chocolate brown colouring with a silky grain pattern and regular birds eye pips. The colour is further enhanced by the application of a clear oil such as Osmo UV resistant oil.

WEATHERING

The modification process removes most natural extractives resulting in relatively consistent weathering largely free of staining. Weathering to a grey colour occurs more quickly than on non-modified timber. When wet Brimstone poplar returns to a walnut colour.

PROFILES

All machined profiles

DIMENSIONS

20 x 70mm, 20 x 95mm, 20 x 145mm

LENGTHS

Random. 1.5 – 3.0mt+

MOISTURE CONTENT

2-4% (Moisture content is stable in exterior conditions)

NATURAL DURABILITY (EN350-2)

Very Durable. Class 1 (Above ground use only)

INSECT ATTACK

Thermally modified wood is resistant to insect attack when used above ground contact.

DESIRED SERVICE LIFE (BS8417)

Occasionally wet 60 yrs
Frequently wet 30 yrs

Treatability class

Resistant

Movement class

Small (Negligible)

Resistance to impact

Low

Resistance to fixing

High. Modified wood is brittle and should be treated with care.

When to fix

Year round. Very stable in all conditions.

Grading

BS1186-3 1990 Class 1. EN942:2007. J20. CE grade A. Clean with a few small sound knots.

Working properties

Thermally modified woods are more brittle than untreated wood. Care should be taken when cutting and nailing to prevent chipping and break out. Pre-drilling is advised. Test glues before large-scale use. Water based glues do not work well. PU glues have tested well. Otherwise treat as a normal hardwood.

Extractives

The modification process involves no chemicals and any natural chemicals in the wood are removed during the process. Thermally modified wood can be treated as inert.

Emission of formaldehyde (EN14915)

E1 (Not significant)

Reaction to fire (EN14915)

Euroclass F (Untested). D-s2, d0

Fire treatment

Untested

CE compliant

Yes

While the utmost care has been taken to provide accurate information, Vastern Timber shall not be held responsible for any consequences arising from any errors or omissions on this website nor for any damages resulting from the use of the information.

THE THERMAL MODIFICATION PROCESS

What is thermal modification? Thermal modification is a simple but effective process. Developed in the 1960s, it changes the cell structure of the wood by heating it up to 210°C. This natural, toxin-free method removes moisture, resin and other extractives. The result is a more durable, stable and consistent material – with less risk of bending, warping or decay. Perhaps most importantly, thermal modification allows us to use the UK's own fast-growing hardwood species, the kind that can't usually be used in exterior applications. And, because we're increasing the demand for UK wood, we're helping to regenerate the woodlands we all know and love.

Proportion

PROPORTION

The proportion of components that bond with water (Hydroxyl groups) are reduced.

Cross Linking

CROSS LINKING

‘Cross-linking’ of the Lignin deters water from entering the wood.

Moisture

MOISTURE

Equilibrium moisture content is stabilised at 2-4%.

Sugary Food

SUGARY FOOD

The sugary food favoured by wood eating fungi is degraded by the intense heat.

Mass

MASS

The wood loses mass and therefore strength.

The result is natural wood which is both stable and resistant to fungi, the main cause of decay in timber used outside.

Brimstone News

Brimstone is exhibiting at Futurebuild 2019

Vastern Timber are set to exhibit their revolutionary Brimstone range at the auspicious Futurebuild show next March at London Excel.

The Futurebuild show is one of the building sector’s most anticipated and respected events. It brings together some of the industry’s biggest thinkers and newest innovations to offer a glimpse into what the future of building holds.

Vastern Timber will be there to promote the Brimstone range, which includes thermally modified ash, sycamore and poplar, all sourced from local British woodlands. Being thermally modified (heated to temperatures between 1800 and 2100) has many benefits. It improves the stability of the wood, resulting in minimal shrinkage and expansion even when used externally, and makes the wood so much more durable for the longer term. This means that it is the perfect choice for cladding, decking and external joinery. Brimstone also represents a real opportunity to improve the management of our mixed woodlands by creating a demand for lesser-used white hardwoods.

Thomas Barnes, Managing Director of Vastern Timber, said: “After launching the Brimstone brand at Ecobuild in 2016, we are excited to be returning to the revamped Futurebuild show in 2019. We’re looking forward to again promoting the range of modified British hardwood cladding and decking”.

Please drop by and visit Vastern Timber at Stand C35. The Futurebuild show runs from 5th – 7th March 2019.

Brimstone is exhibiting at Futurebuild 2019

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Brimstone thermally modified timber achieves Durability Class 1

Brimstone, the first thermally modified British timber, has achieved Durability Class 1 in tests conducted at The EPH in Dresden, Germany. This is the highest rating and puts Brimstone on a par with the most durable hardwoods.

At the internationally respected facility Brimstone ash and poplar were tested for biological durability, bending strength and elasticity, and impact bending strength (brittleness). Launched in 2016, Brimstone originated as a collaborative project between Vastern Timber, Grown In Britain, BRE, Timber Strategies and other commercial partners. Speaking about the achievement, Tom Barnes, Managing Director at Vastern Timber said “Brimstone has been very well received since it was launched. Its stability, durability and aesthetic uniformity has proved popular, as has its inherent high levels of sustainability.

“However, it was important to confirm the performance of Brimstone and we are delighted with the results from The EPH. We can now definitively state that in cladding situations Brimstone can offer an expected service life of 60 years when correctly installed. We are confident that this accreditation will see Brimstone enjoy even greater success.”

The EPH is an accredited test laboratory and certification body for management systems. The facility has a focus on the woodworking and plastics industries and particular expertise in thermally modified wood. Test reports and certificates issued by The EPH as an independent third party are recognised worldwide as proof of performance for materials and products.

The Brimstone products were tested against CEN/TS 15083-1 and BS EN 350 for biological durability against wood decay basidiomycetes; BS EN 408 for bending strength (MOR) and bending elasticity (MOE); and DIN 521891-1 for impact bending strength (IBS).

Thermal modification of wood is a proven technology first pioneered commercially in Finland during the 1960s. Thermally modified timber is 60 – 80% more stable than non-modified timbers, meaning significantly less expansion and contraction when faced with changes in ambient temperature and humidity. This makes thermally modified timber a superior solution for a range of exterior uses.

Brimstone is sourced exclusively from native woodlands. The Brimstone range is ideal for cladding, decking, external joinery and furniture, and includes thermally modified British hardwoods including ash, poplar and sycamore.

Vastern Timber will be exhibiting the Brimstone range at a number of Specifi Design events during 2018, including; Birmingham (April 17th), London (July 17th), Cardiff (Nov 6th), London (Nov 27th). For more information visit http://www.specifi.co.uk

For more information on Brimstone thermally modified timber visit www.brimstonewood.co.uk

ENDS DATE: February 2018

For further press information please contact:

David Mclean

Dave Mclean Communications

07712 778757

dave@davemclean.co.uk

Brimstone thermally modified timber achieves Durability Class 1

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Vastern Timber wins £50K research and development grant from The Forestry Commission

The Forestry Commission has awarded Vastern Timber a significant grant for the technical development of it’s thermally modified timber (TMT) brand Brimstone. The figure of £50,000 is in addition to £25,000 already committed to the project by Vastern Timber itself.

The grant will be used to undergo the rigorous testing needed to achieve accreditation, and to certify the product to the relevant construction codes. The long-term goal is to see English hardwoods move away from being niche, low-volume products to modern professional construction-sector ready products, all based on data and quality assurance. It is also hoped this will eventually lead to the creation of a TMT plant here in the United Kingdom. The plant will help in keeping all stages of productions in the UK, reducing the amount of miles travelled for the hardwood.

The fact that TMT is extremely durable and up to 80% more stable than non-modified timber, which means less expansion and contraction resulting from moisture changes, has led to the market growing rapidly. At the moment TMT is already being imported to the UK from Europe and the US. Having funding in place now, however, will mean testing and accreditation can all happen faster, helping Brimstone to become a market leader and allowing the UK to ‘keep up’ with better-funded foreign producers. The greenlight for the grant couldn’t have happened at a better time for the UK timber industry.

Vastern Timber’s approach is to capitalise on the initial market testing and current sales of Brimstone to make the right purchasing environment for architects and specifiers. To do this, data is needed to prove that Brimstone offers a functionally and environmentally superior option for the modern construction market. This data will be collected in a number of ways, including lab-based testing to determine durability, stability and strength of British TMT, life cycle analysis of the thermally modified product, and long-term service life data of products fitted as cladding, window frames and doors.

The benefits are far-reaching. The increased development of TMT British hardwood is good news for woodland owners, too. They can now bring more hardwood to market and increase volumes and management of hardwood woodland.

Vastern Timber wins £50K research and development grant from The Forestry Commission

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ABOUT GROWN IN BRITAIN

All hardwood logs used in the Brimstone wood production process are sourced from woodlands which meet the Grown in Britain criteria for sustainable management. As an organisation Grown in Britain is dedicated to creating new sustainably-managed woodland in the UK to increase the supply of British timber destined for use by local people and businesses.

To find more about Grown in Britain click here.

Grown in Britain

HOW TO BUY

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Currently Brimstone products are only available through Vastern Timber.

  01793 853281    sales@vastern.co.uk

If you are interested in becoming a distributor please
contact Tom Barnes:    info@brimstonewood.co.uk

FIND OUT MORE

If you are interested in finding out more about Brimstone wood and thermally modified hardwoods generally, we can offer a CPD accredited presentation titled 'Thermally modified hardwoods in construction'. The presentation can be combined with a sawmill tour at Vastern Timber in Wiltshire (extra points), or for five or more people, delivered at your premises.

To find out more about Brimstone wood or to book a CPD presentation please email info@brimstonewood.co.uk

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OTHER CONTACT DETAILS

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For other British timber products such as cedar cladding, larch cladding and oak beams please contact the sales team at Vastern Timber.

Keep up with Tom Barnes www.tombarnesblog.com

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