Author Topic: cold exterior walls  (Read 4154 times)

Brent

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cold exterior walls
« on: November 25, 2005, 06:23:10 AM »
wondering if anyone has any suggestions on how to get latex to addhere to your exterior walls that have little to no insulation. have tried turning the heat up in the house to above 80 degrees and running blowers. can't seen to get the substrate warm enough. any suggestions would be appreciated

Offline theopas7

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Re:cold exterior walls
« Reply #1 on: November 25, 2005, 01:17:30 PM »
well brent you have an interesting dilema that may be remedied if you can give the forum some specificson your pro-
ject other than it is a cold exterior wall.

Brent

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Re:cold exterior walls
« Reply #2 on: November 25, 2005, 02:15:00 PM »
the outside temp is below 0 degress c. 32f. the interior walls facing the exterior of the home is where the problem lies. the walls have little to no insulation. the paint will not adheare in the corners or where there are drywall screws on this wall. don't know what else to tell you

Offline rmichael

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Re:cold exterior walls
« Reply #3 on: November 25, 2005, 05:21:05 PM »
Brent,

Sounds like the cold air is transferring through the drywall screws and the drywall corner beads or moisture if forming on their interior surface ( or both).
latex paints will tolerate lower temps than alkyd (oil ) paint, however, You will need to maintain a substrate temp of 50%F or more for at least 4 hours.
Most paint companies now offer an exterior line of latex paint that is formulated for temps below 40% F. If you are relatively sure that cold air is the problem you might consider applying a low temp. exterior paint as a "grabber" coat. If the grabber coat adheres with no problems you can then apply your interior latex finish paint.
If the drywall screws feel wet then the problem is moisture transfer or condensation. Prime the wall with a moisture blocking primer before applying the finish paint.

rmichael    pro painter
Pro Painter 30 years ~ Down East Coastal NC

"Hell Son, It's always been about the work."

Offline theopas7

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Re:cold exterior walls
« Reply #4 on: November 25, 2005, 05:55:45 PM »
well brent ,this is definitely an extreme situation of which there are two possible solutions. the first would be to warm up that room as best you can. then you will have to use a quick drying primer/sealer. one that i use often is called gripper
which dries fast with a minimum smell.you could also use a waterborne epoxy primer that chemically dries. there is a chart on the back of the can which will tell you when you can
finish coat over it. this has more of a smell but it will dry.

 

anything