I have a home that has cedar siding that has been stained with a semitransparent stain and sealed. House is in good shape, no fading yet. I want to seal it again before it starts to weather. Concerned that siding wont accept penetration because surface is already sealed well. What should be applied at this point before fading occurs and then have to restain to get even color back.
Semi-transparent stains are not designed to be film forming like a paint. If applied to an already sealed surface they could peel. In order to get the new stain to penetrate your old stain will need washing and the use of a siding stripper. It's best to just wait until your siding needs restaining.