What happens to the base coat if you neglected to use the scratch coat rake?
One wall was already completed before we realized we needed to use a rake to rough up the wall for adherence of the final stucco coat. The wall isn't completely smooth by any stretch of the imagination so will this fact help us?
You can cut some shallow grooves in the base coat with a circular saw and a diamond tip blade or masonry blade or use a grinder with a thin masonry blade. Just make sure the grooves are very shallow no more than about a 1/16 or 1/8 inch deep. This will give the final coat of stucco something to grab onto.
Just like when you key a footing before you pour your foundation...you need to create grooves in your base coat before applying the stucco. if you do not, in time it will crack off.
The same situation happened on one of our jobs a few years ago, the way we solved the problem was spreading thin set mortor with a 1/4" knotched trowel over the small area and applied our finish over that. To date it's still holding up.
Good luck, hope this helped.
Stucco is typically applied as a three coat process: scratch, brown and finish. But it's not uncommon to use a two coat system, namely: scratch and finish. Given that your scratch coat has some "teeth" to it, as you indicated, you'll very likely be okay.
Search the TrustedPros directory and discover the best contractors in your area.Find your home service pro