Latest Discussions : Painting

glauster

01:21PM | 10/31/06
Member Since: 11/15/05
70 lifetime posts


About a week ago the painters came over to pressure wash the outside walls of my house. They have yet to return to do the actual painting.

Question: How much time is needed for outside paint to fully dry, especially if it's elastomeric? Here it is almost the middle of the work week and I hear it's gonna rain within 2 days time.

5slb6

12:57AM | 11/03/06
Member Since: 07/28/02
1356 lifetime posts
It should dry at least three sunny days after a good rain before you apply paint.

A lot of painters will spend a day or two washing and then start painting the houses, so it could take a few weeks beofre they get back to yours.

glauster

06:13AM | 11/03/06
Member Since: 11/15/05
70 lifetime posts


Are you saying that the typical procedure is to pressure wash the house, then come back days later and paint? Why? If a certain amount of time elapses before the painting gets done, dirt and other stuff will have had time to accumulate to the wall surfaces. This means that the walls may not be very clean by the time paint is applied.

Billhart

07:38AM | 11/03/06
Member Since: 04/25/05
1915 lifetime posts
That is unless you want to repaint in a few months.

If the wood is wet when painted then when the sun heats it up the moisture driven out of the wood can cause the paint to blister.

And it is not just whether the surface is dry or not. It can still be too wet behind the boards.

Best is using a moisture meter to verify that it is dry enough to paint.

That is why a lot of people don't like using pressure washers.

But rather a brush and low pressure water. But it is slower and thus cost more.

Water on thesurface will dry fairly quickly.

But a pressure washer can drive water behing the boards that can take days or even weeks to dry.


glauster

07:52AM | 11/03/06
Member Since: 11/15/05
70 lifetime posts


Now I understand the method to the madness. Thanks.


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