FSC
 Most of the timber used in our products is cut in our own sawmills
from trees which have been grown in UK forests.
These woodlands
come under the control of the Forestry Commission. This
government agency has a statutory duty to ensure sustainable
management of existing woodland and must comply with sound
environment practice.
Guarantees
Most of our products are guaranteed against rot through either
pressure treatment or dip treatment.
Pressure treated
timber
All our timber items which are designed to be in ground contact are pressure
impregnated with Osmose Naturewood preservative*, an effective method used
to preserve wood against fungal decay and insect attack. Osmose is a trusted
name in wood preservation and supplies preservative products to a worldwide
market. A decorative dye is added to the preservative process to ensure every
piece of timber is coloured and preserved in one operation. This colour will
fade over time to a honey brown colour.
Stains and water repellents may be applied immediately if required, providing
you follow the manufacturer's instructions. If Osmose treated timber is cut,
notched or drilled it is recommended that an approved cut end treatment be
applied. Failure to do so may reduce the effectiveness of the treatment.
*Osmose Naturewood is a
timber preservative which contains copper and an organic co-biocide
(3% copper and quat with approx. 97% water, approx. 0.8% Dye
and Mouldicide <0.1 %)
Non-pressure treated
products
Dipped treated products should be isolated from the
ground with a pressure impregnated gravel board to comply with the conditions
of the guarantee.
Dipped products will fade with time. Colour
is applied during manufacture to compensate for the inconsistent
natural appearance of British redwoods. This colour is not permanent
and to retain the factory finish, treatment should be reapplied
regularly. To change the colour allow the product to mature before
applying a proprietary brand.
Effects of the weather
Wood is a natural product and therefore susceptible
to certain changes in an outside environment. Extremes of temperature or changes
in weather conditions will cause a reaction in timber used outdoors. Heat may
cause panels to lose shape but this process will be reversed when temperatures
subside. Posts and pergola may warp in higher than normal temperatures. This
is perfectly natural and in all but the most extreme cases normal shape returns.
Sawn timber and particularly machine-rounded items such as sleepers and palisades
may split. This will not affect the structural strength of the wood or your
guarantee.
If installed correctly and treated regularly,
Larchlap products will give years of service and pleasure.
Handling and use recommendations
The preservatives in Osmose Naturewood are frequently
used in products that are common in our everyday lives. Copper, a naturally
occurring mineral, is an effective and widely used fungicide and quaternary
compounds are commonly used in household disinfectants and cleaners. Osmose
Naturewood preservatives penetrate deeply into the wood and will remain for
a long period of time. However, some preservative may migrate from the wood
into surrounding soil over time and there may also be incidental contact with
the skin during construction or use.
- Wear a dust mask, goggles and gloves when
cutting or handling wood.
- All sawdust and construction debris should
be cleaned up and disposed of.
- Wash hands in normal soapy water and prior
to handling food.
- Wash work clothes separately from other
household clothing before re-use.
- Preserved wood should not be used where
it may come into direct contact or indirect contact with drinking
water, except for uses involving incidental contact such as
fresh water docks and bridges.
- Do not use preserved wood under circumstances
where the preservative may become a component of food, animal
feed, or beehives.
- The product should be disposed to normal
landfill in keeping with the legislation in place at the time.
It should not be burned other than in an approved incinerator.
- Osmose treated timber is not recommended
for use in small garden ponds of stagnant water where fish
will be kept. In the case of a lake or a pond with fresh running
water. Osmose treated timber is perfectly suitable.
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