Timber will expand and contract with changes in temperature and humidity. This is a natural characteristic of wood.
Boards may show gaps due to the expansion and contraction process. This will not generally cause any problems with the building.
A good quality water repellent will help but will not totally eliminate movement of the boards.
Pressure-treated timber should be allowed to dry out completely before adding any further treatment. Always follow the instructions given on the treatment product you use.
All buildings should be aired out regularly to prevent condensation or mould from accumulating inside the building.
Important points to note when purchasing a shed or timber building are;
- Cracks and splits are normal and not a defect
- Timber movement is a natural process.
- Boards will contract and expand during the different seasons
- During heavy rain, water ingress can occur
- Buildings can never be 100% waterproof
- Applying a water repellent regularly can help reduce water ingress.