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Old 06-23-2009, 07:38 PM   #1
Join Date: Jun 2009
Location: SF Bay Area
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Stucco repair on the wall and waterproofing - some questions

Hi there, we have a old house that (we believe) was built with cement. We are currently looking for contractor who could really do a good job to repair the stucco on the exterior wall, see two sample photos here:




We have talked to some contractors, and some professional contractors (who only do waterproofing projects for commercial buildings) mentioned a product called "Sikaflex" (http://www.sikaindustry.com/ipd-ma-products).

Some questions here:

1. There are a lot of products in the Sikaflex product line, which one I should be using?

2. Another waterproofing company mentioned another product called "Shur-Stik 100 permanent patch" (see http://www.gardner-gibson.com/linedetails.aspx?id=52). Does anyone has any idea which product would be better and more durable?

Any other general thoughts or comments about repairing these stucco surfaces and waterproofing? Thanks a lot!

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Old 06-23-2009, 07:42 PM   #2
Join Date: Jun 2009
Location: SF Bay Area
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Stucco repair on the wall and waterproofing - some questions

By the way this is what the contractor proposed to do (to fix the failing stucco and waterproof the house). The house is located in San Francisco and is very close to ocean (meaning HIGH moisture and lots of fog):

1. Water-blast surfaces to remove dirt, mildew, chalk, loose paint....
Scrape and remove loose paint from stucco surfaces, wire brush to remove chalk.,
2. Patch and repair all cracks and voids with Shur-Stik # 100, permanent patch
3. Re-caulk sealant, around windows. Lift loose caulking. Re-apply
4. Fix openings and broken concrete on retainer wall to the best possible form
5. Fix corners that are open on Deck Floor to prevent sipping of water or moisture
6. Apply (Kelly Moore) 250 Acrylic Surface Conditioner & Primer to stucco surfaces FULL COAT
7. Apply KM 1128 TERPOLYMER WATERPROOFING COATING to stucco surfaces (residence) Acrylic, Satin, smooth type.
8. Apply KM 1240 Acry-Shield Acrylic Flat Paint to retainer walls (top and one side only)
9. Apply KM 1700 Alkyd Oil Base High Gloss Enamel to trimming
10. Apply 1280 Dura-poxi Acrylic Semi-gloss to Deck floor (two coats) or Metacrylic Mastic (Waterproofing for Decks) two coats.

Thoughts or comments about this process? Does this sound like a good waterproofing plan?

By the way anyone have any experience with Kelly Moore 1280 Dura-poxi Acrylic versus "Metacrylic Mastic"? What are their pros and cons?

Thanks again!

Last edited by ohman; 06-24-2009 at 02:17 AM.
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Old 07-02-2009, 12:58 AM   #3
Join Date: Jun 2009
Location: SF Bay Area
Posts: 228

Stucco repair on the wall and waterproofing - some questions

I'm confused and hope someone here could help. For stucco surface, what would be the best primer (or "conditioner") to use to prep the surface? Some painter said to use Kelly Moore "250 Acrylic Surface Conditioner" (water-based), while some said to use oil-based primer for stucco surface. Who should I believe??
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