Cracks as small as 1/16” of an inch in stucco can cause water intrusion. All cracks 1/16” of an inch wide or larger should be promptly repaired.
Skimming of existing stucco
Exterior Painting of Stucco
Any penetration found in stucco left unsealed will allow in moisture. Even average homes can have a high number of penetration areas including:
1. Doors and Windows
These are the most common sources of water intrusion in stucco buildings. Leaks occur for a variety of reasons. Most commonly there is no caulking around perimeter of window or doorframes and thresholds. Improper of failed joints due to inaccurate construction of joint width and depth can also result in caulking failure. Additionally, use of inappropriate sealants will shorten the life span of the water intrusion. Finally, even if the proper sealant is used the usual life span of water protection is 5-20 years depending on type and quality of sealant used.
Sealants should be inspected annually and repairs made promptly.
2. Improper transitions between dissimilar materials
3. Electrical boxes
4. Light fixtures
5. Plumbing lines and faucets
6. Cable TV lines
7. Satellite dish mounts
8. Security Systems
9. Gutter attachment straps
10. Shutter brackets
11. Deck rails
12. Gas lines
13. Telephone lines
Penetrations must be sealed with a compatible sealant designed for stucco application. V.A.M.P. L.L.C. typically uses BASF NP 100 and NP 150. MasterSeal NP 1 is a one-component, high performance, non-priming, gun-grade, elastomeric polyurethane sealant. It requires no mixing and typically requires no priming to bond to many materials, including concrete and masonry.
MasterSeal NP 150 is a high performance, very low-modulus, high-movement, non-sag, fast-curing, hybrid sealant.
When comparing estimates please note that sub-standard sealants are not being used. Quality sealants come with legitimate costs.