My rule of thumb is that one inch of rigid insulation provides frost protection equal to one foot of soil. The (slightly) tricky part is determining the horizontal extent of the insulation. Keep in mind that frost can penetrate at an angle that is not perpendicular to the ground surface.
ZFL
Thank you for the code reference twinnell. Here's a follow up question for you:
Section 3403.2 states "Where repairs are made to structural elements of an existing building, and uncovered structural elements are found to be unsound or otherwise structurally deficient, such elements shall be...
I have been working on an addition to a warehouse. The existing building is a rigid frame with z-purlins. Today, the client informed me that they were removing the roof from the existing building and replacing it. Does this mean I need to bring the roof framing up to current code? Under what...
The tiles are arranged in a half-lap pattern. The plywood is attached to metal studs. I have not been able to find any industry data regarding this condition. All opinions on this are very much appreciated.
-ZFL
Thank you for your reply SperlingPE.
Perhaps some additional information would be useful. Slate tiles are proposed to be attached to 3/4" plywood with hooks. No grout will be used in this application. This will allow the tiles to slip in relation to one another without causing stresses...
I am working on a building with a slate tile facade. Does anyone know the appropriate deflection criteria to use for the design of curtainwalls and spandrel beams? Any help would be much appreciated.
-Zach Lindauer
