OMG, I can see ever piece of Foam on the wall

OMG, I can see ever piece of Foam on the wall

If you can see every piece of foam on the wall the applicator has missed a crucial step

The other day a came across an EIFS house that I could see every piece of foam on. I have seen some EIFS applications where in the right sunlight you could see a few pieces of foam, but this was the worst you could literally see every piece of foam. The home owner naturally asked me how this could have happened. Apparently the contractor told him that is just how it looks. I can tell you that, that is not true. There is a few reasons that could have happened and in this case it was probably all of the above. If the foam is not rasped or rasped correctly you will be able to see the foam pieces after the job is done. Also, the adhesive used to adhere the foam to the wall can get in between the pieces, and cause gaps. The gaps will dry at a different rate due to moisture and heat flow, and that will cause them to be seen. I have purchased foam that was not all exactly the same thickness, which if not rasped down will cause the pieces to be seen, but this is very rare I have only seen this a couple times in my 23 years in the industry.

In the case I just seen I am sure they did not rasp the foam at all, and when sticking the foam they did not make sure the pieces where applied tightly together, which caused the finished product to look like that. To fix the wall it now needs to coated with two layers of base coat. The first layer to fill in all the seams to even them out. The second layer is a complete coat over the entire wall to blend everything together. This process to repair the wall takes a highly skilled plasterer. Short of that you would have to re-stick the entire wall, essentially redoing the wall over the existing EIFS.

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OMG, I can see ever piece of Foam on the wall

New Home owner with EIFS – Question

My question as a new homeowner with EIFS, should I avoid all together
putting any kind of nails or screws in the EIFS for fear it will allow
moisture in. I am thinking of hanging some planters, a piece of
grillwork, and a hose holder. Is there a special way to insert a screw
or nail to prevent introduction of moisture? Thank you.

That is a very good question Joyce, and you are right to that the nail or screw hole will allow moisture and over time can even cause some real problems. What you will need to do first is to get some screws long enough to go through the EIFS system and into the sub-straight. It is important to make sure each screw hole is sealed with silicon caulk. The reason I say silicon caulk is that the silicon caulk will not eat away at the foam like other caulks will.

With that all being said I would like to tell you about a conversation I had the other day with a rep from STO about a cool way to do this process. How it works is that you get some PVC tubing and use it for a mounting bracket. First you will use a drill to cut a hole of the desired diameter and push the piece of PVC with a small amount of adhesive (once again make sure you use a foam friendly adhesive like PL Premium)  into the hole making sure the tubing is flush with the EIFS System. Now you can run your screw in your home made hole and fill with caulk. With this system if the nail or screw were to fall out of need to be replace you can simply pull out the caulk and replace it all nice and clean. Having the PVC will help with the heavy things like planters as well you have to keep in mind that there is only foam back there. I really like this idea. I feel this process would work great for filling the holes on store fronts after the side has been removed.

EIFS Repair | Exterior Insulation and Finish System