For builders there has always been concern with darker color siding products specifically about color fade or damage caused by normal uv rays or in some cases from concentrated sunlight.
Sun damage to wood siding.
Sun fading occurs in two ways.
The sunlight that causes age spots on your skin also discolors wood walls over time.
Sunlight will break down both the finish and the stain on your log siding.
Wood that has been exposed to the sun s destructive rays for years without a protective layer of paint can begin to weather so badly that it may appear to be beyond saving.
Wood contracts and expands with changes in temperature and long term sun exposure can dry out the wood causing cracks and breaks in the wood and sealants.
The effect is called sun fading and can cause the wood to lighten in spots.
Follow the instructions that come with a bottle of wood cleaner and mix a batch following the ingredients.
As the southern and western sides of your log home are exposed to the most sun they will show signs of weathering before the northern and eastern exposures.
Step 1 remove damaged plywood.
Fixing the sun damage is easy to do and can be done with wood cleaner scrubbing and sandpaper.
Sunlight and moisture can damage the surface of the plywood siding causing cracks and warping.
Today s home owners are moving toward darker siding colors even in low maintenance products such as vinyl siding fiber cement and manufactured wood.
If you ve got badly weathered window sills you re not alone.