Home Design Considerations.

Shrinkage and expansion of timber board floors is natural and cyclical process.

The degree of movement depends on the surrounding changes in atmospheric moisture content and therefore is generally controlled by the seasonal weather conditions. Changes are most evident during long periods of dry or wet weather conditions however, local conditions also have considerable influence.

Good ventilation under your floor is a very significant factor in a successful installation. Minimum ventilation recommendations may not be adequate for your site. Excessive humidity in the under-floor area can be caused by the lack of sufficient cross-ventilation or from damp soil conditions arising from poor drainage. Ensure the water from gardens or storm water does not drain under the floor area and that no water lies in the under-the house.

Air conditioning and heating systems dramatically reduce the general moisture content within a house. Your flooring specialist should be made aware that these systems are to be used. It may be necessary or advisable during laying / coating to operate these systems and to acclimatise the flooring to the average conditions in these circumstances.

Shutting up a house when away on holiday for long periods can also create abnormal conditions. Full-length windows, large glass areas and skylights, which admit direct sunlight, can create sunroom conditions and with high temperatures and low moisture conditions, cause floors to shrink. Direct sunlight will also cause colour changes to the timber, so moving rugs occasionally, and the use of curtains and blinds is a good idea.

If your home is located close to the body of the water such as the ocean, a river, large dam or wet lands, or if it will experience prevailing winds which may direct particularly moist or dry air towards your home, special moisture control measures may be required. Expert advice should be sought.