Water from lawn sprinkler

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Posted by: from Victoria
7/11/2021 at 5:53:50 PM

I hope you can settle a longstanding argument between my wife and I about stucco. When we water our plants and shrubs with a lawn sprinkler, she is fanatical about not wanting the water to hit the stucco on our home because she says it will damage it. I maintain that water from a regular lawn sprinkler for an hour or so every two or three days will not do any harm. I've seen posts that say that high pressure water or water from in-ground sprinklers right next to the house can cause damage, but lawn sprinklers are not the same. What is your advice.

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Ian in Edmonton
Date/Time7/12/2021 at 12:14:36 AM

I work for an engineering company involved in building envelope investigations, failures and remediation. It is stucco clad buildings that give us most of our work; however it all depends on the underlying detailing which is difficult (but not impossible) to assess by looking at the surface.

If you ask me I would tell you to do anything possible to keep ALL sources of moisture away from the stucco as it is very effective at capturing and retaining moisture which can find its way into the underlying substrate if it has not been correctly detailed. I could show you many hundreds of photos of failures of stucco clad buildings that I have seen over the years.

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Date/Time7/14/2021 at 11:48:01 PM

Stucco is porous. Absorbs water and then dries out. Overtime this cycle will eventually cause deterioration. Women are usually always right!! LOL did you forget? I am surprised someone did stucco on the island I have lived there and run my business numerous times, not my 1st choice to suggest to a Client

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