From: "joe" 
Newsgroups: misc.consumers.house
Subject: Question about Siding and Sheathing on a house
Date: 6 Feb 2006 16:50:30 -0800
   posting-account=42VOnQwAAAD1ltfolJ87rFZZAd8raXtt

 will be having my house re-sided with either cedar lap siding or cedar
shingles (currently it has cedar shakes that are poorly installed (not
sufficient overlap.)  I have several questions.

#1--the sheathing underneath is shiplap (looks like 1x8 boards).  Is
this significantly less strong than plywood sheathing?  Would it be
worth my effort to have a layer of plywood installed over the top of
this shiplap sheathing?  Also, this shiplap sheathing is installed
horizontally...I've heard its supposed to be diagonal...is this a bad
thing?


#2  When the siding people are installing the siding  (and possibly
plywood), how on earth can they avoid the posibility of piercing a wire
or plumbing fixture?