To notch or not to notch.

tropic home

In building my Costa Rican open air home I want to have a screened in area on the second floor. I was planning on using teak 4 x 4 posts spaced 4' apart, set into the top and bottom plate by 1 ". I was also going to set the bottom window sill 1" into the post, 36" up from the bottom plate. The upper portion screened, the lower will have a board inset. I will also double the top plate as one of these walls will support my rafters. My plan is to join all this with 3" and 3 1/2" screws. I think this will be more asthetically appealling and a stronger structure. My questions are: Does anyone see any flaws in this, and should I use any kind of adisive in these joints. I'm thinking the board insets will keep the wall true when stand them.

redline

What is this area currently?

tropic home

It hasn't been built yet. It will be a second floor, 30'x36'. Half 15'x36' will be bathroom and two bedrooms with block walls. The other half 15'x36' will be an open living area that will have these 2/3 screened wall, with one screened double door leading to a balcony. The entire floor (except maybe the bathroom) will be tongue and groove teak. My rafters will be 5" bamboo with a tin roof.