I honestly don’t know but it’s likely. I got up in the attic and looked at those holes and I could see about an inch of light coming through it. I did a house on Saturday and in three Windows it leaked like crazy. I sprayed away from them and everything. One of them was like a fountain. I had to put tons of towels on the sill. Now I’m nervous to put water on a house, especially with bleach. Maybe I’ll take a video of my technique and post it on here and you guys might see something I’m not seeing.
