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Posted by norminn@earthlink.net on March 3, 2009, 8:24 pm
David Nebenzahl wrote:
> On 3/3/2009 2:06 PM dpb spake thus:
>
>> dave wrote:
>>> Hello. I am in the process of painting some 80 year old wooden
>>> shutters that have been off my house for 10 years. I have scrapped,
>>> wire brushed and washed them. They are in pretty good shape. I am
>>> wondering if the paint job will last longer if I caulk the joints
>>> where the rails and stiles meet. Or is the paint enough? Also these
>>> shutters have the panel with a cresent moon cut out. One panel has a
>>> crack about 1/8 inch wide. Is there a way to fill a crack like that?
>>> Will wood filler just fall out over time? Thanks in advance for any
>>> thoughts.
>> Don't caulk the joints -- it will only trap water and lead to early
>> rotting.
How is water trapped? I don't understand the logic .. paint when the
weather and the wood are dry. Two coats on end grain, after primer.
>
> Yes, absolutely. Was told by a skilled house painter (through a friend)
> that the worst thing that you can do is to caulk the gaps between siding
> boards on a wall; all it does is trap moisture *behind* the wall and
> practically guarantees rot. Since this seems counterintuitive, many
> people think they're protecting their house by caulking such seams.
>
>> The crack -- use a good quality painter's caulk and it should be fine.
>
> Or good quality painter's putty (I use Crawford's), which dries a bit
> harder and doesn't shrink as much.
>
>
I've done a good deal of painting, but never heard of "painter's putty".
Is it same as glazing compound? As for shrinkage, caulk is flexible
(assuming one uses the right caulk) and is meant to expand and contract
while adhering.
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> shutters that have been off my house for 10 years. I have scrapped,
> wire brushed and washed them. They are in pretty good shape. I am
> wondering if the paint job will last longer if I caulk the joints
> where the rails and stiles meet. Or is the paint enough? Also these
> shutters have the panel with a cresent moon cut out. One panel has a
> crack about 1/8 inch wide. Is there a way to fill a crack like that?
> Will wood filler just fall out over time? Thanks in advance for any
> thoughts.