Replies

1. 
   dovetail97128 | Oct 05, 2007 07:58am | #1

   redwood,

   I am unaware of any "Legal " minimum for the lap length.
   To me good practice says at least 1'.

   I always do a couple of feet myself, and I stagger the laps going up the wall so that no two are in verticel alignment.

   They can't get your Goat if you don't tell them where it is hidden.
1. 
   Redwood Curtain | Oct 05, 2007 09:37am | #2

   Thanks.  The original builder (50 years ago) used all vertical felt with a whopping 2" overlap.  I've had a few rot issues.....

1. 
   Matt | Oct 05, 2007 02:10pm | #3

   Our NC code requires min 4" of lap on vertical seams on the roof.  Obviously NC code doesn't apply to you - just some data for you to consider.  As far as I know there are no specific code requirements for lappage of wall sheathing wrap, however prudence would seem to suggest to use at least the same lap on the sidewalls.  Personally I'd just go with a min 6" since no one is going to be actually measuring it.

   Assuming you have pneumatic tools (ie a compressor) I'd strongly  recommend using an air stapler, and then, if you feel it is necessary use button caps on it although a heavily stapled felt job holds up as good or better than a button capped one, partially by virtue of the fact that you will have so many more fasteners.

2. 
   Shep | Oct 05, 2007 03:35pm | #4

   Why run it verticle again?

   In a rainy area, I'd run the felt horizontal. I usually lap it to the first line on the lower piece; I think that's about 3".

   Plus you don't have to run it all at one time- just felt as you go up.

1. 
   dovetail97128 | Oct 05, 2007 04:35pm | #5

   shep, I understood him to mean that he is running the felt horizontal and the information requested was for the vertical laps at the ends of runs of paper.
   They can't get your Goat if you don't tell them where it is hidden.

1. 
   Shep | Oct 05, 2007 07:33pm | #6

   Oh.

   Well.

   Nevermind.

   <G>