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MJpainter 04-07-2009 12:16 PM

Pressure washing when cold
 
I would like some opinions on pressure washing when the average temp for the next two weeks are 45 to 50 during the day and on the edge of freezing over night. The customer wants his house painted by the end of the month. I have never been to sure if it is wise to pressure wash at these temps and start painting about two weeks after. It is a job where the HO just wants it painted quick, so he can sell the house as soon as possible. So really my question is should I wait until the temps at night are well above freeezing or should I not worry that much considering the timeline and project. :icon_confused:

Thanks

[email protected] 04-07-2009 02:34 PM

I guess the bigger ? is it wood or aluminum. If aluminum go right after it. If wood wash and wait as long as you can. Down side would you will have more scraping.

The Painter Guy 04-07-2009 03:15 PM

Im in similar situation but the surface I will be painting is going to receive latex stain, solid. I had planned on washing it this week, letting it dry out over weekend and start staining early next week. Homeowner also wants to get it done asap. Temps are similar to what you said only we may have some snow or rain showers to deal with.
Jim

nEighter 04-07-2009 03:34 PM

I would pressure wash it now and let it dry. Thing is the mornings early season/late season are going to have dew all over the siding/trim/whatever. Just try not to shoot it into overlaps and such. Get the cleaning out of the way now (watch out for blowing caulking out for the rains that are coming) and you should be fine. FYI expect rain starting beginning of next week out there. We are going to be getting it all weekend into early next week.

painttofish 04-07-2009 07:12 PM

1 Attachment(s)
Use a moisture meter. Preferably this one.

nEighter 04-07-2009 07:19 PM

ptf how much is that meter?

painttofish 04-07-2009 07:27 PM

Quote:

Originally Posted by nEighter (Post 67942)
ptf how much is that meter?


It's a Delmherst J lite. Google it, but I think it's around 140.00. Buy a good one and it will last a long time. Crucial for early and late season. And decks.

MJpainter 04-08-2009 09:59 AM

Quote:

Originally Posted by [email protected] (Post 67901)
I guess the bigger ? is it wood or aluminum. If aluminum go right after it. If wood wash and wait as long as you can. Down side would you will have more scraping.

Its compressed wood siding. Speaking of which does anyone know the technical name for that stuff?:smartass:

nEighter 04-08-2009 06:26 PM

We talking lap siding? Or like T1-11? not enough info. What is the trim? Wood or composite?

painttofish 04-09-2009 09:35 AM

Quote:

Originally Posted by MJpainter (Post 68042)
Its compressed wood siding. Speaking of which does anyone know the technical name for that stuff?:smartass:


I think you may be dealing with masonite.

nEighter 04-09-2009 11:59 AM

watch out with that stuff because the power washer will fillet that like a fish.

MJpainter 04-09-2009 12:12 PM

Quote:

Originally Posted by painttofish (Post 68216)
I think you may be dealing with masonite.

Thats it! :thumbsup:

Yeah, i know, that stuff can look like shat if you are not careful when pressure washing.

blastman 04-09-2009 10:27 PM

Painttofish is right on the money about using a moisture meter. Take several readings when it is time to paint, if any readings are over 10% notify your customer that his or her home is still too wet to paint and that if they would like you to proceed have them sign a document so it is their baby if it fails.

johnpaint 04-09-2009 10:42 PM

Just say pressure wash, just like rain.


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