Our laths are the result of many years careful observation of how different species of wood and cutting techniques behave in the potentially hostile environments that may occur.
Resistance to insect attack, splitting, movement, staining and all round durability have led us to sawn Douglas Fir as the most stable long-term economic lathing option. We have chosen Douglas Fir because it is the strongest homegrown softwood, traditionally used for quality joinery, box sashes, etc. It is also a timber that contains a resin unattractive to beetles, and it has a low moisture content, so isn't prone to movement once attached and drying. Our laths are sawn 'green', so have a raised grain texture that also acts as a key for the plaster.
We supply the finest quality, straight grained, oversized, sawn Douglas Fir laths, cut to a larger dimension of 39mm x 8mm. The slightly larger than standard gauge enables us to supply the laths in 2.4m lengths, which allows for a far stronger length, with faster fixing and considerably fewer joints.
Traditional hand riven laths, split from oak, larch or chestnut can also be supplied. Although more expensive, they offer the extra strength of running with the grain rather than cut.
We can also offer advice on detailing such as the use of pentice boards, stop beads, and corner beads.
We do not offer sawn oak as a lath option: in our opinion, it has no historic provenance and is prone to more than reasonable expansion and shrinkage. Please contact us if you wish to discuss further.
The coverage of our oversized lath is 20 linear metres per square metre. This doesn't account for any wastage or the use of counter laths, so it is advisable to add 10% to the calculation. When calculating the volume of plaster required for the base or scratch coat onto lath, always add 5mm, or by volume, 5 litres per m2, for the plaster that is pushed through the lath to form the 'key' behind the lath. So a 10mm scratch coat will require 15mm of plaster.
Our sawn Douglas Fir laths are sold from our yard in bundles of 30 lengths 2.4m long (collection only). The dimensions of the lath are 39 x 8mm. We can cut the laths down into 1.2m bundles for despatch on a standard size pallet. Please contact us with regards to the delivery of Savolit, lath or wool.
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