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sherlock 06-30-2006 11:48 AM

exterior paint question
 
I have some time off coming up soon, and have decided to give the exterior a once over. House is brick facade with aluminum siding, so just need to paint the wood window trim, gutter trim, and garage door.

My paint experience is with interior painting, so not sure how to approach this for exterior.

1. Do I need to strip the existing paint off, or just paint over the old paint?

2. Can I apply water seal over the old paint before I put on the new paint? What seal do you recommend?

3. What else do I need to know about exterior painting?

4. Any suggestions on how to approach painting the cement foundation would also be appreciated.

slickshift 07-01-2006 08:05 PM

Quote:

Originally Posted by sherlock
1. Do I need to strip the existing paint off, or just paint over the old paint?

Depends on the condition of the existing paint
Usually ou can paint over it if it's in good shape
Quote:

Originally Posted by sherlock
2. Can I apply water seal over the old paint before I put on the new paint? What seal do you recommend?

No
Quote:

Originally Posted by sherlock
3. What else do I need to know about exterior painting?

Pretty close to interior trim paint
Scrape/sand, use a good quality paint
Latex over latex, oil over oil
Make sure it's dry and not expecting any rain for 24 hours
Quote:

Originally Posted by sherlock
4. Any suggestions on how to approach painting the cement foundation would also be appreciated.

I don't believe I've done that before

ron schenker 07-01-2006 10:28 PM

I would parge the foundation wall rather than paint it.

sherlock 07-04-2006 07:45 PM

Pardon my ignorance, but what is parge?

Only planning to paint because when I bought the house, it was painted, and now it's peeling and looks bad.

MrNoMaintenance 07-05-2006 03:56 AM

Parging is a cement based plaster type coating put on foundations primarily for decorative purposes and as a water barrier. A liquid or sheet type membrane with a drainage system would be the way to go for below grade to 4-10 inches above grade.

redline 07-05-2006 08:31 AM

Quote:

Originally Posted by sherlock

1. Do I need to strip the existing paint off, or just paint over the old paint?

Scrap off the loose paint, sand bare wood and feather the edges between paint and bare wood, prime and finish with a top coat.

2. Can I apply water seal over the old paint before I put on the new paint? What seal do you recommend?

3. What else do I need to know about exterior painting?

Try not to paint if the sun is exposed to that side. The paint will cure too fast.

4. Any suggestions on how to approach painting the cement foundation would also be appreciated.

Same rules as painting the house. Scrap loose paint, prime bare areas and paint with finish coat.



Hope this helps- the prep is the most important part. If you plan on living in the house for a long time and do not want to paint as often then you could put two finish coats on. I have been told that this will give a thicker coat and make the paint job last much longer.


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