04-15-2018, 05:58 PM
If it's a pre-2003 CCA treated deck you might not want to sand. Just get a cleaner and scrub the mold and mildew off.
For a post-2003 deck likely ACQ or CA treated you could still use a cleaner to get the mold and mildew off, but if you've got opaque stain to remove and especially if you're changing or deleting colored stain, you might want to sand it.
I used to get a year or two more out of Cabot than the cheap stuff except for on horizontal surfaces that baked in the sun .
I,ve also just rolled another coating on in the Fall or Spring where needed without even cleaning when I used to use Thompson's.
Now all I have is a 6x6 'deck' ( more of a stair landing really ) and four steps that have been "painted" with a semi-opaque stain to match the paint of the house. I just clean where the paint hasn't maintained adherence scrape off anything loose and repaint it. Last done over 5 yeas ago.
For a post-2003 deck likely ACQ or CA treated you could still use a cleaner to get the mold and mildew off, but if you've got opaque stain to remove and especially if you're changing or deleting colored stain, you might want to sand it.
I used to get a year or two more out of Cabot than the cheap stuff except for on horizontal surfaces that baked in the sun .
I,ve also just rolled another coating on in the Fall or Spring where needed without even cleaning when I used to use Thompson's.
Now all I have is a 6x6 'deck' ( more of a stair landing really ) and four steps that have been "painted" with a semi-opaque stain to match the paint of the house. I just clean where the paint hasn't maintained adherence scrape off anything loose and repaint it. Last done over 5 yeas ago.