|
Dennis, it looks like the typical construction grade Doug Fir. From the close up photos, it has a top coat of some kind on there. Are you sure its Thomson's Waterseal? Use a deck wash chemical and pressure wash. I am afraid there's isn't too many products out there to prevent this from happening again. A deck like that will require maintenance every two to three years. I know there is a company that make a thick, very thick paint, maybe epoxy like liquid for decks. It will keep the moisture out from the lumber. Problems is, lumber willl drawer moister from one side instead of both and This WILL cause the decking boards to cup over one season.
|