 dude you can figure it out but do you guys come in and audit that you do tell us what we got yeah pretty much you have to figure out the square footage it's not just the foundational square footage because some of these roofs the steeper their pitches and the the certain parts of the attic that are closed off and some are open so you got that's when you have to go in the attic and a lot of roofers don't want to go in the attic when it's 130 degrees up there right right and it shouldn't be that to begin with because it's not ventilated properly but then you got to make sure there's airflow and then sometimes you got like i have one customer there