Replies

1. 
   Mike_Mahan | Nov 26, 2013 10:10am | #1

   Typically you'd saw cut the block wall 3/4" deep or so, and insert a leg of the flashing into the saw cut with a high quality caulk.

1. 
   AndyEngel | Nov 26, 2013 01:35pm | #2

   Termination bar

   Mike's method is probably best, but an alternative is to use a termination bar made of the same material as the flashing (probably Al or galvanized). A termination bar is a heavier piece of stock, say 3/16 in. thick, and about 1 1/2 in. wide. You bed it and the top of the flashing in some sort of sealant, and Tapcon the bar to the masonry. This is one way that roofs terminate against masonry parapet walls. Any commercial roofing supply house would have the bars and the sealant.

2. 
   Perry525 | Nov 26, 2013 01:58pm | #3

   Wet outside wall = wet inside wall.

   You may like to consider the fact, that the block wall above the copper or lead flashing will be exposed to the rain. As such the water will settle down the wall, making the wall damp, possibly even wet, inside your new room.

   The flashing only going part way into the wall will merely stop excess water running down the outside of the wall and between the wall and roof.

   To do the job properly the flashing should go right through the block wall, and thereby keep the lower wall dry.

   Or the wall above the flashing should be protected from the rain by using a waterproof coating or siding.

3. 
   seeyou | Nov 27, 2013 12:26pm | #4

   As noted above,

   Block walls absorb a lot of water. If the wall is exposed to wind driven rain, the "face" type flashing like the termination bar is not likely to be 100% effective. If it's not possible to through flash as recommended above, a kerf/reglet should be cut as deep as possible (at least through the face into the core) and the flashing inserted into it. A sealant/paint should be applied to the exposed block above the flashing.

4. 
   seeyou | Dec 07, 2013 04:47pm | #5

   Thanks, Jim.

   Fatroman built the store. I just put the stuff on the shelves.

   Hope you and yours are doing well. Long time, no see.

1. 
   jimblodgett | Dec 07, 2013 08:27pm | #6

   Yes. Too long.

   We're great out here in the woods.  Moved back into the old house a few years ago.  Todd and Selena bought the 5acres across the road and gave us our first Grandbaby. Amy moved into her little cabin next door.  Lindy has found her way back to Western WA for at least a little while. 

   Full house for Thanksgiving, I'll tell you that.

   Life is good.

   You?

1. 
   seeyou | Dec 11, 2013 02:16pm | #7

   Well,

   Congrats on the grandchild. I've aquired two of them in the last 2 years. I'm getting old, fat, and gray. Everyone else is fine. Life is also good here.