We’re in the process of rebuilding a substantial portion of our attached deck. New 4×8 DF joists are going in, and they are exposed/visual; they will ultimately be painted w/ exterior latex to match existing house trim color.
Joist Jackets, exterior grade screws for the decking (redwood), new hangers, and blocking are all going in soon.
We’d like to “prime” the DF joists before install, esp. the top which will be covered with the Joist Jackets.
What is the best practice here?
Current temps are 50s/60s daytime, 30s at night, frost possible. How much drying time should we allow?
Thanks much,
Chris
Replies
Naughty Naughty Chris! You asked a question without filling in your profile first!
In my area, I covered my new rafters with Jasco 25% Copper napthalate. It stains the wood green, it also makes it water resistant and yucky for bugs. I then primed and painted with water based paints. I live in an area where termites are hungry.
Rebuilding my home in Cypress, CA
Also a CRX fanatic!
Profile updated!As for water protection, the JJs, plus 1 coat primer, 2 top coats was my plan. Termites here seem to be the terrestrial version (<knock wood> - pun!); that's based on only 5 years experience living here in the foothills, but as we do the demo./dismantle, we're encouraged sofar seeing only water damage, no insects. Deck is probably 12-15 yrs. old.Most everything turned up by google points to acrylic/latex primer, just wanted to see what folks thought of my planned regimine. I'd only consider a copper treatment if I thought insects were a problem; I'd rather defend against water/moisture without it.Thx,
Chris
You want to use a Paintable, Water Repelant, Wood Protectant.Jasco makes several products in that familay.Waxes are used for the water repelant, but not too many to keep it from being painted. Specially help where end grains can absorb water. A copper oxide or tin oxide for the protectant to keep both bugs and fungi away.