Why Would Stain Peel From Wood Siding

Years ago the wood siding on the clubhouse was treated with what i believe to be an acrylic solid stain.

Why would stain peel from wood siding.

This is a telling sign of the problem. It s peeling in places and needs to be recoated. You can clearly see the low quality paint sold as stain peeling. I suspect the deck was either painted or that it received multiple coats of stain.

Sometimes moisture can and will. Another insidious cause of solid stain failure on cedar has to do with dead wood fiber on the face of the siding. Over the years in our exterior painting work in the chicago area painting in partnership inc. If window trim alone is peeling pry off trim boards and plug gaps around the frame with a low expansion foam sealant.

Because wood absorbs moisture from rain and snow and when the sun comes out and dries the wood out the moisture vapor from the wood needs to be able to pass through the stain and escape. If there is too much stain it restricts the moisture from evaporating away so peeling can occur. No stain or paint can adhere to dead wood fiber leading to major coating failure. If this moisture can t evaporate it will remain on the surface and begin peeling away the stain.

Has encountered a troubling issue with cedar siding. Wood can only absorb so much stain. Peeling paint or stain that comes off in sheets all the way down to bare wood on the sunniest side of the house. They just weather away.

Although they are designed to penetrate multiple applications or over application in a relatively short period of time without the benefit of natural weathering can cause a film to form on the surface. Install an exhaust fan vented to the outside. Most stains absorb into the wood surface so they don t form a film that could peel off. When the peeling stain is scraped off dead wood fiber often stays stuck to the back of the flake.

If you re working with wood siding it won t fully cover the texture but will hide the grain. If too much stain is applied the excess material will linger slightly above the surface and prevent moisture from rain and dew from leaving the wood. Cabot semi solid stains and cabot decking stains can flake and peel from wood siding or deck structures if these products are over applied. In particular the bad prep can be from a dirty poorly prepared surface or because moisture migrating through the wood from behind the siding.

Also it operates in a similar manner to paint and will peel if not properly applied.