I had been called recently to examine a deck in San Francisco. The homeowner inquired whether just using an environmental safe cleanser formulated for redwood deck was all that necessary for deck maintenance.
I explained to the homeowner that cleaning the deck is the first step. However they need to use a high quality non toxic stain/sealer to protect wood from environmental element. In San Francisco the weather can vary from sunny and warm to foggy and damp. These fluctuations can be harsh on the wood. The wood can be damaged by UV rays from exposure to sunlight. The wood can
expand and contract from changes in temperature and humidity. The stain will protect the wood from UV damages and the sealer will protect from rain and damp conditions.
In San Francisco, your deck may be your backyard! So it is important for proper maintenance to extend the deck’s life.



