Help Repair Garage Wall - Advice
This is my first post, so I apologize if I don't offer enough information.
I'm attempting to repair a garage wall because of rot due to lots and lots of dirt being against it (outside). It's a 2 car garage with wood siding, and just 1 side is rotting, I'd say from ground level to about 4 feet up. The section of rot is about 10 ft. wide. It's stick built, I believe, as far as there are studs on the inside, wood siding outside. Also on the interior (I don't know why) is some type of particle board behind the wood siding, which is moisture damaged and rotting.
Anyway I have removed most all of the dirt from this wall, and am going to remove the rotten siding and particle board, leaving the studs as they seem to look good. I would like to build a partial cinder block and mortar wall instead of just replacing the wood. So that from ground up there would be cinderblock and then around 4/5 ft or so the existing wood siding would resume.
I hope I've painted a good picture. Anyway, is there anything special I need to follow for building a cinderblock wall? Do I need to pour a concrete foundation/trench below the cinderblocks to prevent heaving? I know I should lay the blocks below the frost line. Could I line the bottom with a gravel trench and then lay the blocks and mortar?
I'm fairly handy around the house, I recently gutted a room and replaced plaster and lathe with drywall, did all the mudding, sanding and painting... moulding and finishing work. I've gutted and redone a bathroom as well (supply lines and compression fittings... eh not fun).
Anyway what do you all think? I'd like any opinions. I mean, I could just replace the wood with pressure treated wood, etc... but I'm just hoping cinderblock has more longevity. How would I go about joining the cinderblock with the wood above? Or would I just have it meet, and then caulk the place it meets?
Any and all advice is welcome. I just want to figure out the best/cost effective and relatively easiest solution to this. Also, if I wanted to repair the interior wall, right now I can see the studs. What's best for covering the wall? I think it's too damp for drywall. I live in upstate NY, btw.
Thanks in advance for any/all advice.