Joe_Carrick 2362 Posted December 15, 2020 Here's a helpful link for fire and STC rated walls. https://www.usg.com/content/usgcom/en/design-studio/wall-assemblies.html Share this post Link to post Share on other sites
RodCole 25 Posted January 22 Joe Have you happened to come by any systems that rate Floor / Ceiling systems for older homes? I often come across 1x12 Rough Saw Lumber installed diagonally to the floor platform. This was a very common system many years ago. A problem arises when situations such as remodeling an older home to convert the basement into an ADU. These usually have very low ceiling heights, making difficult to arrive at 7' clearance . Just curious if you might have found something in your travels. Share this post Link to post Share on other sites
