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Description

Air dried jointed British oak cladding, originating either from independently certified British woodlands or those managed under the strict guidelines of the Forestry Commission. 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 England and Wales.

Specification data
Product Reference

Air Dried Jointed British Oak 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/ horizontal.

TG&V, VTG2

Machined, 20 mm depth, vertical/ horizontal.

TG&V, VTG3

Machined, 20 mm depth, vertical/ horizontal.

Width

95 mm

Machined profiles only.

125 mm

Machined profiles only.

145 mm

Machined profiles only.

150 mm

Feather-edge only.

Standard product features

Length:

Supplied in 4.0 m jointed lengths, allowing for small percentage of cut-backs. In some cases special lengths can be offered. Jointed boards comprise individual sections from 300 to 1000 mm.

Appearance:

Newly machined boards will display the full range of yellowish-brown colours associated with oak. Being jointed from shorter lengths, the colour variation will be more exaggerated and the zigzag joints will be noticeable. As the boards weather, the colour variation will even out and will change to a silver-grey patina. Staining may occur in the early months as tannin leaches from the oak.

Technical properties:

  • Moisture content: 16–20%.
  • Natural durability (to BS EN 350-2): Durable, Class 2.
  • Insect attack: Sap excluded from front face.
  • Service life (to BS 8417): Occasionally wet: 60 years; frequently wet: 30 years.
  • Treatability class: Resistant.
  • Movement class: Medium.
  • Resistance to impact: Medium to high.
  • Resistance to fixing: High, pre-drilling recommended.
  • When to fix: Ideally autumn/ winter only.
  • Grading: BS 1186-3: Class 2; BS EN 942: J30; CE: Grade A.
  • Working properties: Average workability; takes fixings satisfactorily.
  • Extractives: Contains tannic acid, which will corrode ferrous metals. When the two come into contact, a blue sludge is formed that will stain the oak and anything else that it meets.
  • 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.

Product Options

Fixing:

Face fixed with stainless steel ring-shank nails. Secret nailing not recommended due to instability of oak.

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