How To Waterproof Wood Siding

Let the wood surfaces dry completely before proceeding to the next step.

How to waterproof wood siding. Paint penetrates and protects in the same way that oil does. Purchase a water based wood sealer. You ll need to remove any remaining trace of past finish before using a sealant. Finish with finer sandpaper to make it smooth and even.

Water seal and stain. You will need to stir frequently as you work because the. If it s a new wood surface you can skip the cleaning process. Oil a clear finish is absorbed into the wood filling all pores and voids thereby displacing water that otherwise would be absorbed.

It will be a bit on the runny side so you will. Apply an even coat. Stir the oil base stain but avoid creating air bubbles. Flip the siding over once the stain is.

After the surface is dry give it a good sanding with rough sandpaper or with a sander to tackle any imperfections. Apply the stain to the back of the siding with a 4 inch paintbrush. You can find these products at a home improvement stores. Before the vinyl siding is installed on the house a waterproof underlayment called house wrap must be placed on the osb to prevent water from seeping through the siding and reaching the osb.

Using sealants to waterproof 1.