Decks, Patios, Porches and Docks - How to connect tall railing to a wall?

One side railing is an 8’ tall "privacy" wall. Top of it is a 2x4 covered with 2x6. It is nailed with some 12d to a house wall. These nails splinted siding board (cedar). I fill the gap with sealant twice a year but the pieces of siding keeps moving and rain keeps seeping down to the basement. It is time to change this tie and flush it and fix the siding board. Any suggestion how to do it correctly? I was thinking about steel corner, notch in the board (new) and a sealant.
MikeJ

Why not take a 7" x 1/2" lag bolt, predrill and countersink on about a 45 degree angle, thru the top 2x6 piece thru the siding and into the corner studs of the houseframing ?
Butyl caulk the sunken head and around the top piece and at any spot above where the bolt penetrates the siding?
What is the 'wall' made out of? Is it wood fence?
Let us know!
good luck
ryk

id go with the lag bolts into 2 by framing members.every 2 feet or so down the "wall"..caulk the pilot hole and around the lag head

HOpe this helps---JOsh

Hello
If the bottom of the wall is set and does not move you should only need a tied at the top...use a metal angle lag bolt to each of the walls on the house predrill a 1 1/2" hole use a 1/2" lag bolt and a 3/4" pipe sleve longer that the siding is thick to bolt the angle too the siding fill around the sleve with caulking, the wall can move around with out cracking siding and the caulking around the sleve will keep it from leaking.....Good Luck