Decking is a popular way of merging the rear of a property with the garden. However, it can cause rain water to splash above the damp proof course inot a house and or reduce the airflow onto a wall.
Tips for fixing damp caused by decking
- Remove the decking.
- Ensure that the air can flow freely under the decking, so that any moisture that falls onto the wall safely evaporates away.
- Install an impermeable surface about 500mm+ above the decking, such as with impermeable render.
- Look at where rain water is splashing during a heavy storm (or by spraying with a hose) and paint on that wall with a coating to reduce absorption.
- It can be done with an oil or acrylic based paint. However, you may need to repaint regularly.
- Probably the best method is using a low absorption silicate such as found in StormDry (3L £89.99 follow instructions) – manufactured by the chairman of the Property Care Association – (PCA).
- Insert a vertical line of damp proofing using a Dryrod Damp Proofing Rods (also manufactured by PCA chairman, follow instructions).