Home > Companies > Vastern Timber > Brimstone Poplar Modified Profiled Cladding

Thermally modified British poplar cladding, produced from locally sourced trees. Brimstone poplar is relatively knot free and has a silky texture resulting in a clean and contemporary appearance. Thermally modified poplar is extremely stable and naturally durable. It is available in many profiles and can be installed both horizontally and vertically. Compliant with BS EN 14915 and BS 8605-1; CE marked. Grown in Great Britain. GIB independently certified.

Standard product features

Length:

Random lengths: 1.8-3.0 m, allowing small percentage down to 1.5 m. Lengths of over 3.0 m may be included but are not guaranteed.

Orientation:

Horizontal or vertical.

Appearance:

Consistent dark chocolate brown colouring with a silky grain pattern and regular bird's eye pips. The colour can be further enhanced by the application of a clear oil such as Osmo UV-resistant oil. Brimstone poplar weathers quickly and evenly to a pale silver grey colour.

Technical properties:

  • Moisture content: 4–6%.
  • Natural durability (to BS EN 350-2): Durable, Class 1.
  • Insect attack: Thermally modified wood is resistant to insect attack when used above ground contact.
  • Service life (to BS 8417): Occasionally wet: 60 years; frequently wet: 30 years.
  • Treatability class: Resistant.
  • Movement class: Small (negligible).
  • Resistance to impact: Low.
  • Resistance to fixing: Low, modified wood is brittle and should be treated with care.
  • When to fix: No restrictions.
  • Grading: BS 1186-3: Class 1; BS EN 942: J20; CE: Grade A.
  • 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.
  • 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 (to BS EN 14915): E1 (not significant).
  • Reaction to fire (to BS EN 14915): Euroclass F (untested), D-s2, d0.
  • Fire treatment: Untested.

Options

Fixing:

Face fix or secret fix using stainless steel ring shank nails (dependent on profile) or second fix gun stainless steel brad nails.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-45-95/360 Timber lining boards
45-45-95/332 Modified wood weather boards

Product specification

An important note about specifying

Manufacturer

Name:

Vastern Timber

Tel:

+44 (0)1793 853281

Product reference

Brimstone Poplar Modified Profiled Cladding

Profile

[Halflap, VHL1]
-
Machined, 20 mm depth, vertical.
[Halflap, VHL2]
-
Machined, 20 mm depth, vertical.
[Halflap, VHL3]
-
Machined, 20 mm depth, vertical.
[Halflap, VHL4]
-
Machined, 20 mm depth, vertical.
[Halflap, VHL5]
-
Machined, 20 mm depth, horizontal.
[Halflap, VHL6]
-
Machined, 20 mm depth, horizontal.
[Halflap, VHL7]
-
Machined, 20 mm depth, horizontal.
[Shiplap, VSL1]
-
Machined, 20 mm depth, horizontal.
[Shiplap, VSL2]
-
Machined, 20 mm depth, horizontal.
[Shiplap, VSL3]
-
Machined, 20 mm depth, horizontal.
[Splayed, VSP1]
-
Machined, 20 mm depth, horizontal.
[TG&V, VTG1]
-
Machined, 20 mm depth, vertical or horizontal.
[TG&V, VTG2]
-
Machined, 20 mm depth, vertical or horizontal.
[TG&V, VTG3]
-
Machined, 20 mm depth, vertical or horizontal.
[TG&V, VTG4A]
-
Machined, 20 mm depth, horizontal.
[TG&V, VTG5A]
-
Machined, 20 mm depth, horizontal.
[TG&V, VTG6]
-
Machined, 20 mm depth, vertical.

Width

[70 mm]
[95 mm]
[120 mm]
[145 mm]
[195mm]

Manufacturer details

The Sawmills,
Vastern Wharf,
Wootton Bassett,
Swindon,
Wiltshire, SN4 7PD
Tel +44 (0)1793 853281
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