Opening a can of worms

A couple of them really .
Got a call from a neighbor about replacing some of the trim boards on his house in preparation for putting it on the market . Looked the job over and I gave him a labor plus materials price with a warning that the cost could easily go up once I peeled it open .
Cause it is kind of like Forrest Gump said ;  
"you never know what you gonna get when you open up the box"

Started on the garage corner boards. So far not so bad. But Oriented Strand Board sheathing with no tar paper over it is never a good sign .

Then I tackled the other back corner and . . .  Kaboom . . what a frikking mess

That is what a can of worms looks like when you open it up. OSB sheathing has turned to mulch .

From the weathering on the OSB you can tell it was left without siding for a long time . Likely several years . And then when they did put the clapboards on it they neglected to put any kind of tar paper under it . Inevitably as the clapboards weathered and leaked the OSB soaked water up like a sponge and turned to mulch .

They had however covered the framing , that also sat in the weather for at least a couple of years , in plastic . It is the only thing that saved the framing from rotting as well .

So I propped up the deck with some timbers , peeled the decking back , cut the rim joist off the deck and pulled off 5 sheets of OSB and replaced them with 5/8s plywood .

Then I covered it in Bituthane and galvanized metal and added a PVC 1x10 where the deck attached to the wall .

Trimmed the corner

Cut an inch and a half off the joists and installed a new rim joist . Added some spacing rings cut from 4 inch PVC pipe between the rim joist and the garage wall. Then I through bolted the deck back on the the garage wall with 8 inch Timberlock screws. Tedious fiddly work to get this part together as I had less than twelve inches working space .

Got the deck all back together and pulled out the side door as the striker side jamb was rotted at the bottom

Rebuilt the door jamb and reinstalled it and trimmed it out . Also replaced the lower part of the rake trim on the roof line .

Tar-papered the back part of the garage wall

And using some of the old salvaged clapboards I re-sided the back side of the garage .

Replaced the corner boards on the other end of the garage

Front of the garage also got new corner boards and new jambs and trim on the garage door.

On both sides

Tar-papered the rebuilt wall of the garage , and made clean cuts on the old clapboards .

And re-sided the garage wall with new cedar clapboards .

Can of worms number two , right in the corner where the breezeway meets the side of the house .

Peeled it all open and found more mulch

It was also about two gazilion degrees in the sun on that corner last Monday .

So I rigged up a tarp for some shade .

Had to pull the fascia board on the breezeway trim and the interior corner trim to replace a small patch of rotten OSB sheathing .

Bithuthaned, tar-papered, re-flashed, added new trim everywhere including the window

And got it buttoned up all in one day.
There was also some other minor bits and pieces of trim that needed replacing on the house but they were not much to talk about compared to what I have shown . And that is how you go from a nine-hundred dollar trim repair job to a thirty-five-hundred dollar can of worms .