Lap siding directly on studs. Help with how to proceed with exterior from here.
Hi everyone. I live in south Louisiana and have been remodeling my 1960s home. I’ve been in the house for 10 years now and I have been doing little things here and there and well, I am finally tackling the exterior of my home. The home is wood framed on piers with red wood lap siding and original wood single pane Andersen windows (sliders and awning in perfect condition besides peeling paint. I recently tore down the attached carport and front porch, both which had leaky flat roofs, and had them reconstructed with hip roofs that tie into the existing. I then had the entire shingle roof replaced a la insurance. With my nice new roof, new lines, new porch, and carport I want to finally address the much needed paint my exterior really needs.
I’ve noticed while upgrading the electrical throughout the home years ago that I could see the lap siding when replacing electrical boxes and running wire. I was not too knowledgeable of building systems back then so it no red flags were raised til recently when I started researching how to help heat and cool the home.
The current layers of the wall from inside to out are: drywall, the old 0.25 paneling, 1×6 tongue and groove planks, 2×4 framing (actually 3.75″ deep) with fiberglass insulation in cavity, lap siding nailed directly to studs. The home has 1×6 planks lining every wall in the interior of the home. This I have never seen before and I can imagine would be very, very costly today. My walls have interior sheathing.
How best should I proceed going forward? Do I need sheathing on the exterior side of my framing since it is all on the interior side? Should I maybe just foam sheathe the exterior side, thus giving me an air barrier, which my drafty home seems to really need, and proceed from there ?
My original thinking was to carefully pull up siding, add receptacles where needed and replace/ update insulation where needed, sheathe, wrap home, replace windows, flash, rainscreen, then put siding back on home inside out so I’d have bare wood giving me a good base to prime and paint. Of course this would also be the most costly method which while I am up for it I am not entirely up for it if you know what I mean. I priced replacement windows like I have now and wood replacements with the same features ran almost 900 a window and with the price of materials I see this being very very costly.
I have attached a picture taken from the carport demolition that shows the exposed cavity that had water damage from where the carport attached to the home.
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