Brimstone Poplar

Brimstone poplar Cladding from Vastern Timber

• Thermally modified British poplar
• Sourced from legal and well-managed woodlands in England and Wales. GIB certified.
• Supplied by Vastern Timber (sales@vastern.co.uk)
• Grade BS1186-3 Class 1 / EN942:2007 J10
• Finished thickness of 20mm
• Overall finished widths 70mm / 95mm / 120mm / 145mm
• Random lengths 1.5mt – 3.0mt+
• Available in various profiles
• Moisture content of 4 – 6%
• Durability EN350-2 Very Durable. Class 1 (Above ground use only)
• Supplied uncoated. No treatment required.

Appearance
Brimstone poplar has a consistent dark chocolate brown colouring with a silky grain pattern and regular birds eye pips. The wood will contain only occasional small sound knots.

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

Desired service life
Occasionally wet 60 yrs. Frequently wet 30 yrs.

Movement class
Small

Resistance to impact
Low 

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.

Density
377 Kg / M3

Extractives
The modification process involves no chemicals and most naturally occurring chemicals in the wood are removed during the process. Thermally modified wood can be treated as inert.

How to fix
Hand nail with stainless steel nails through the face or through the tongue on suitable profiles.

Alternatively use a second fix nail gun and insert two nail per batten at opposing angles. For more information, visit the resource centre

Batten type
Treated softwood. 35mm thick x 50mm wide

Batten spacing
400 – 600mm

Nail type
Stainless steel only. 50mm ring shank nails for hand nailing or 50mm second fix brad nails if using a gun. Trim head stainless steel screws are also suitable.

When to fix
Year round. Very stable in all conditions.

Resistance to fixing
Low. Modified wood is brittle and should be treated with care.

We machine timber cladding to the profile of your choice. View our full range of cladding profiles.

We recommend the following profiles for Brimstone poplar.

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.