On Jul 9, 12:50 pm, "Robert11" wrote:
Hi,

In the midst of having new Cedar horizontal clapboards being put on house.

They are pre-primed (with something ?) on both inside and outside.

Questions:

a. Not really "dirty", but guess I will have them pressure washed first.
Good idea ?
Anything I should probably know first about pressure washing Clapboards
?
e.g., can it ruin or take off the primer ?

b. Have no idea how long Cedar clapboards may have been sitting around in
lumber yard.
Should I wait some period of time for them to "stabilize" (or perhaps
bleed-out) before the painting (latex paint) ?
If so, how long ? Sure do want to get them painted this summer, though.

c. If not necessary to wait, how long should I wait after the pressure
washing for the surfaces to be satisfactorily dry, etc. ? (assume typical
75 deg. summer days) Will a day or so be enough if dry to the touch ?

Thanks,
B.

Put your little toy pressure washer back in the garage until you need
it for some real chore, like your cousin Vernal's ATV after he's back
from the swamp. Meanwhile, take the time to learn the nuances of
painting a valuable wood from the pros at a real paint store, not the
18 year old that works at the box store. You may be amazed to learn
that oil based primers and paints can last longer than latex (although
those clever paint chemists are full of suprises.) Actually, a little
grime will not harm a primer, so don't waste your time going for a
pristine substrate. Some other good tips are in the posts on this
thread, too. HTH

Joe