Waney-edge Cladding

Waney-edge Cladding from Vastern Timber

Supplied by Vastern Timber sales@vastern.co.uk

• Profile code VWE1, VWE2
• Thickness of 19mm or 25mm
• Random widths from 200mm to 350mm+
• Random lengths 1.8mt – 3.5mt+
• Available in Green British larch, Green British cedar, Green oak and Green elm
• Supplied uncoated. No treatment required.

How to fix

Face fix only. Do not try to hide the fixings.  One fixing only per board / batten.

Waney-edge boards are supplied in various widths. It is advisable to select boards into batches of approximately equal widths before starting. This will help achieve runs of a consistent depth across the building.

Begin at the bottom, ensuring that the first board is level and the waney-edge (bark) is pointing down. Use a 19/25mm strip (depending on the thickness of the board) behind the lower edge of the first board for support. Overlap subsequent boards by 50 – 65mm. It is important not to reduce the recommended overlap. Waney-edge boards are cut from green* (wet) timber and will, as a result, shrink by up to 15mm as the board dries.

We recommend that each board is fixed once with a nail located 10mm above the upper edge of the previous board. Some suppliers advise using two nails per board, but this does not allow for shrinkage of the board and can result in splitting.

End joining of the boards should coincide with a batten and should be staggered to ensure that subsequent boards do not join in the same place.

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

Batten spacing
400 – 600mm

Nail type
Stainless steel ring shank nails.
65mm for 19mm boards
75mm for 25mm boards

When to fix
Autumn and winter months. Installing green (fresh sawn) during warm months is not advisable.

Other considerations
It is important to consider the potential dimensional shrinkage and movement of green timber. Depending on the species, boards may shrink by 10% over the first two to three years as the wood dries. If exposed to hot, dry weather before or soon after fitting, boards are likely to cup, warp and split. The best time to fit cladding is in the autumn or winter.

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.