I suspect the deck was either painted or that it received multiple coats of stain.
Why would stain peel from wood siding.
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.
Sometimes moisture can and will.
This type of stain is ideal if you re living in a very sunny region and are looking to block the sun without changing the colour or appearance of your exterior siding.
If you re working with wood siding it won t fully cover the texture but will hide the grain.
In particular the bad prep can be from a dirty poorly prepared surface or because moisture migrating through the wood from behind the siding.
If there is too much stain it restricts the moisture from evaporating away so peeling can occur.
Stain can peel off in sheets because of many reasons including poor adhesion caused by slapdash prep choosing the wrong paint.
If this moisture can t evaporate it will remain on the surface and begin peeling away the stain.
Also it operates in a similar manner to paint and will peel if not properly applied.
No stain or paint can adhere to dead wood fiber leading to major coating failure.
Install an exhaust fan vented to the outside.
Cabot semi solid stains and cabot decking stains can flake and peel from wood siding or deck structures if these products are over applied.
Most stains absorb into the wood surface so they don t form a film that could peel off.
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.
Paint peeling on a wall next to a bathroom means condensation on the back of siding is being drawn through the wood when sunshine warms the wall.
If window trim alone is peeling pry off trim boards and plug gaps around the frame with a low expansion foam sealant.
Years ago the wood siding on the clubhouse was treated with what i believe to be an acrylic solid stain.
Over the years in our exterior painting work in the chicago area painting in partnership inc.
Has encountered a troubling issue with cedar siding.
When the peeling stain is scraped off dead wood fiber often stays stuck to the back of the flake.
Peeling paint or stain that comes off in sheets all the way down to bare wood on the sunniest side of the house.
Another insidious cause of solid stain failure on cedar has to do with dead wood fiber on the face of the siding.
It s peeling in places and needs to be recoated.
You can clearly see the low quality paint sold as stain peeling.
They just weather away.
