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Posted by JayTKR on September 5, 2009, 6:14 pm
I have a house that I am going to be renting out that has a basement with
poured concrete walls and a concrete floor. The basement doesn't flood,
but it does have a sump pump, and the pump does pump out water from under
the slab, especially after a heavy rain. I don't want to refinish the
basement, but I do want to clean up the way it looks a little and eliminate
that slight musty smell. The basement is very high, clean, spacious, and
nice.
There is no detectable moisture that comes through the walls or the floors.
I tested this using the "tape and seal a piece of aluminum foil" trick on
the walls and the floor. After a few days, when the taped and sealed foil
is removed there is no moisture there. Despite all of this, there is a VERY
SLIGHT musty smell in the basement -- it is almost undetectable, but it's
there.
The house has an electric heat pump HVAC system. There are no intake or
supply vents in any of the HVAC ducts in the basement. My plan is to have
an HVAC person cut in some intake and supply vents so the basement will be
served by the HVAC the way the rest of the house is. I think that alone
will probably eliminate the slight musty smell in the basement.
I did the "acid wash" (or whatever it is called) on the walls and then
painted them with a very light blue DryLock paint just as an extra sealer on
the walls. I have more than enough DryLock paint left to also do the floor.
I now want to paint the floor -- either with just latex porch and floor
paint, or with the DryLock paint first and then with latex porch and floor
paint on top of that.
My inclination is to do the floor with the DryLock paint first, and then
paint over that with latex porch and floor paint.
Is that okay?
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Posted by Phisherman on September 5, 2009, 10:55 pm
wrote:
show/hide quoted text
>I have a house that I am going to be renting out that has a basement with
>poured concrete walls and a concrete floor. The basement doesn't flood,
>but it does have a sump pump, and the pump does pump out water from under
>the slab, especially after a heavy rain. I don't want to refinish the
>basement, but I do want to clean up the way it looks a little and eliminate
>that slight musty smell. The basement is very high, clean, spacious, and
>nice.
>There is no detectable moisture that comes through the walls or the floors.
>I tested this using the "tape and seal a piece of aluminum foil" trick on
>the walls and the floor. After a few days, when the taped and sealed foil
>is removed there is no moisture there. Despite all of this, there is a VERY
>SLIGHT musty smell in the basement -- it is almost undetectable, but it's
>there.
>The house has an electric heat pump HVAC system. There are no intake or
>supply vents in any of the HVAC ducts in the basement. My plan is to have
>an HVAC person cut in some intake and supply vents so the basement will be
>served by the HVAC the way the rest of the house is. I think that alone
>will probably eliminate the slight musty smell in the basement.
>I did the "acid wash" (or whatever it is called) on the walls and then
>painted them with a very light blue DryLock paint just as an extra sealer on
>the walls. I have more than enough DryLock paint left to also do the floor.
>I now want to paint the floor -- either with just latex porch and floor
>paint, or with the DryLock paint first and then with latex porch and floor
>paint on top of that.
>My inclination is to do the floor with the DryLock paint first, and then
>paint over that with latex porch and floor paint.
>Is that okay?
I'd think not. I'd apply a clear epoxy finish, specifically made for
concrete floors. And if I could not follow all the required
preparation, I'd leave the floor as is. You might need a
dehumidfier.
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Posted by trader4 on September 6, 2009, 8:44 am
show/hide quoted text
> wrote:
> >I have a house that I am going to be renting out that has a basement wit=
> >poured concrete walls and a concrete floor. =A0 The basement doesn't flo=
od,
show/hide quoted text
> >but it does have a sump pump, and the pump does pump out water from unde=
> >the slab, especially after a heavy rain. =A0I don't want to refinish the
> >basement, but I do want to clean up the way it looks a little and elimin=
ate
show/hide quoted text
> >that slight musty smell. =A0The basement is very high, clean, spacious, =
and
show/hide quoted text
> >nice.
> >There is no detectable moisture that comes through the walls or the floo=
rs.
show/hide quoted text
> >I tested this using the "tape and seal a piece of aluminum foil" trick o=
> >the walls and the floor. =A0After a few days, when the taped and sealed =
foil
show/hide quoted text
> >is removed there is no moisture there. =A0Despite all of this, there is =
a VERY
show/hide quoted text
> >SLIGHT musty smell in the basement -- it is almost undetectable, but it'=
> >there.
> >The house has an electric heat pump HVAC system. =A0There are no intake =
> >supply vents in any of the HVAC ducts in the basement. =A0My plan is to =
have
show/hide quoted text
> >an HVAC person cut in some intake and supply vents so the basement will =
> >served by the HVAC the way the rest of the house is. =A0 I think that al=
one
show/hide quoted text
> >will probably eliminate the slight musty smell in the basement.
> >I did the "acid wash" (or whatever it is called) on the walls and then
> >painted them with a very light blue DryLock paint just as an extra seale=
r on
show/hide quoted text
> >the walls. =A0I have more than enough DryLock paint left to also do the =
floor.
show/hide quoted text
> >I now want to paint the floor -- either with just latex porch and floor
> >paint, or with the DryLock paint first and then with latex porch and flo=
> >paint on top of that.
> >My inclination is to do the floor with the DryLock paint first, and then
> >paint over that with latex porch and floor paint.
> >Is that okay?
> I'd think not. =A0I'd apply a clear epoxy finish, specifically made for
> concrete floors. =A0 And if I could not follow all the required
> preparation, I'd leave the floor as is. =A0 You might need a
> dehumidfier.- Hide quoted text -
> - Show quoted text -
The dehumidifiier is probably a better idea than adding heat/ac
registers to the basement. Doing so might bring that slight musty
smell to the whole house instead of eliminating it. Also, it may
cost more in energy cost than running the dehumidifier.
For the floor, I'd just go with any of the paints made specifically
for concrete. That's what I have on mine and it's held up well. I
just use my basement for storage. If you want a tougher product,
then the epoxy product could be a good choice.
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Posted by JayTKR on September 6, 2009, 10:08 am
show/hide quoted text
> wrote:
> >I have a house that I am going to be renting out that has a basement with
> >poured concrete walls and a concrete floor. The basement doesn't flood,
> >but it does have a sump pump, and the pump does pump out water from under
> >the slab, especially after a heavy rain. I don't want to refinish the
> >basement, but I do want to clean up the way it looks a little and
> >eliminate
> >that slight musty smell. The basement is very high, clean, spacious, and
> >nice.
> >There is no detectable moisture that comes through the walls or the
> >floors.
> >I tested this using the "tape and seal a piece of aluminum foil" trick on
> >the walls and the floor. After a few days, when the taped and sealed foil
> >is removed there is no moisture there. Despite all of this, there is a
> >VERY
> >SLIGHT musty smell in the basement -- it is almost undetectable, but it's
> >there.
> >The house has an electric heat pump HVAC system. There are no intake or
> >supply vents in any of the HVAC ducts in the basement. My plan is to have
> >an HVAC person cut in some intake and supply vents so the basement will
> >be
> >served by the HVAC the way the rest of the house is. I think that alone
> >will probably eliminate the slight musty smell in the basement.
> >I did the "acid wash" (or whatever it is called) on the walls and then
> >painted them with a very light blue DryLock paint just as an extra sealer
> >on
> >the walls. I have more than enough DryLock paint left to also do the
> >floor.
> >I now want to paint the floor -- either with just latex porch and floor
> >paint, or with the DryLock paint first and then with latex porch and
> >floor
> >paint on top of that.
> >My inclination is to do the floor with the DryLock paint first, and then
> >paint over that with latex porch and floor paint.
> >Is that okay?
> I'd think not. I'd apply a clear epoxy finish, specifically made for
> concrete floors. And if I could not follow all the required
> preparation, I'd leave the floor as is. You might need a
> dehumidfier.- Hide quoted text -
> - Show quoted text -
The dehumidifiier is probably a better idea than adding heat/ac
registers to the basement. Doing so might bring that slight musty
smell to the whole house instead of eliminating it. Also, it may
cost more in energy cost than running the dehumidifier.
For the floor, I'd just go with any of the paints made specifically
for concrete. That's what I have on mine and it's held up well. I
just use my basement for storage. If you want a tougher product,
then the epoxy product could be a good choice.
--------------
Thanks. I am still a little undecided, but I think I'm going to go ahead
with doing the DryLok first and then latex porch and floor paint. The
reason is that it's okay to paint over DryLok but not okay to DryLok over
paint. So, I'm thinking I'll try the DryLok as the sealer and to adhere to
the concrete, then paint over that. Also, both the latex DryLok and the
latex paint are supposedly able to "breathe" a little.
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Posted by cshenk on September 6, 2009, 10:49 am
"JayTKR" wrote
show/hide quoted text
> <trader4 wrote
> The dehumidifiier is probably a better idea than adding heat/ac
> registers to the basement. Doing so might bring that slight musty
> smell to the whole house instead of eliminating it. Also, it may
> cost more in energy cost than running the dehumidifier.
Additional note is the existing HVAC was for the size of the house sans
basement. Trying to extend it to the basement will probably overload the
system which at best will make it just not able to properly heat/cool, and
at worst will burn it out causing complete replacement. The HVAC guy will
notice that though and warn ya ;-)
show/hide quoted text
> For the floor, I'd just go with any of the paints made specifically
> for concrete. That's what I have on mine and it's held up well. I
> just use my basement for storage. If you want a tougher product,
> then the epoxy product could be a good choice.
> --------------
> Thanks. I am still a little undecided, but I think I'm going to go ahead
> with doing the DryLok first and then latex porch and floor paint. The
> reason is that it's okay to paint over DryLok but not okay to DryLok over
> paint. So, I'm thinking I'll try the DryLok as the sealer and to adhere
> to the concrete, then paint over that. Also, both the latex DryLok and
> the latex paint are supposedly able to "breathe" a little.
I think the drylock and cement paint will be fine.
The faint mustyness is probably more related to lack of airflow stirring
about if it's as well sealed as it sounds. I'd try a dehumidifier that also
has a bit of a fan unit to it and see if that helps, as my first tactic. If
it seems to help (will take a few days) you may just need an ionizer fan
unit to complete the process. Your renters will vastly prefer to not have
to pay to heat a storage basement in winter.
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>poured concrete walls and a concrete floor. The basement doesn't flood,
>but it does have a sump pump, and the pump does pump out water from under
>the slab, especially after a heavy rain. I don't want to refinish the
>basement, but I do want to clean up the way it looks a little and eliminate
>that slight musty smell. The basement is very high, clean, spacious, and
>nice.
>There is no detectable moisture that comes through the walls or the floors.
>I tested this using the "tape and seal a piece of aluminum foil" trick on
>the walls and the floor. After a few days, when the taped and sealed foil
>is removed there is no moisture there. Despite all of this, there is a VERY
>SLIGHT musty smell in the basement -- it is almost undetectable, but it's
>there.
>The house has an electric heat pump HVAC system. There are no intake or
>supply vents in any of the HVAC ducts in the basement. My plan is to have
>an HVAC person cut in some intake and supply vents so the basement will be
>served by the HVAC the way the rest of the house is. I think that alone
>will probably eliminate the slight musty smell in the basement.
>I did the "acid wash" (or whatever it is called) on the walls and then
>painted them with a very light blue DryLock paint just as an extra sealer on
>the walls. I have more than enough DryLock paint left to also do the floor.
>I now want to paint the floor -- either with just latex porch and floor
>paint, or with the DryLock paint first and then with latex porch and floor
>paint on top of that.
>My inclination is to do the floor with the DryLock paint first, and then
>paint over that with latex porch and floor paint.
>Is that okay?