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Posted by Ray on June 23, 2006, 8:55 pm
Thanks -- that helps.
>
>>>
>>>Our six-unit coop apartment building (brick and mortar) is 82 years old.
>>>Recently some of the inside walls have begun to show water damage, which
>>>indicates moisture coming in from the outside.
>>>
>>>Someone told me this indicates we might need to have the building
>>>"repointed." I've never been clear on what this means and what it
>>>involves,
>>>but I would guess that it's expensive.
>>>
>>>I have also been told that silicone paint might be a less expensive
>>>alternative to repointing.
>>>
>>>Any guidance or experience appreciated.
>>>
>>>
>>
>> Is it a block foundation? I've heard "repointing" as meaning sawing out
>> cracks
>> and opened seams and re-setting the masonry.
>>
>> Banty
>>
>>
>> --
>>
>
> Yes, repointing is the process of removing and replacing the mortar
> between bricks.
>
> There are different methods for removal and different recipies for mixing
> the replacement mortar. Depending on the nature of the damage one way or
> another might be better. Its best to have a mason look at it. Water
> might be getting in a more common way like bad roof, chimney or window
> flashing or just an overflowing bent gutter spilling on a bad spot.
> Waterproof "elastomeric" paint will stop water intrusion along the face of
> the brick but that may not be the penetration point and do you really want
> to paint your brick. There may be a clear penetrating sealer or a clear
> acrylic surface sealer you can use to retain the brick look.
>
> Come to think of it, a standard building inspection of the type you get
> when buying a home sounds like it would be a better value as you are
> unsure of the source of the problem yet you are investigating solutions.
> Better to spend a couple hunderd finding out all that is wrong than
> spending $2000 to fix what aint broke.
>
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