George,
There's not much brick or stone in the area. This is Southern California. Homes typically have 1" of stucco, and unless they're fairly new, you won't find plywood (even as shear panel) on a 1 story. Keep in mind that the homes are often no more than 10' apart. Boxes/Rx for exterior lighting and recps. would be especially exposed to heat.
JCooper,
The same thing would happen as if someone drove a drywall screw into a piece of Rx that had no heat damage at all...S
[This message has been edited by electure (edited 11-09-2003).]
