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- PastorCharlieExplorerHave you ever considered a second story?

- Well, I did get some work done today, however, almost none of it was on the moho. :(
I did add a small piece to the rear of the roof this morning, to allow it time to cure. The other plywood I put up there did not quite reach from one side to the other.
Since the roof is curved, it's over 8' when following the curve.
As such, I applied 2 pieces, one on each side, which left a gap in the center of a few inches. That is the piece I put in there today.
You can see in the pic, right down the center. It will be covered up with another piece on top of it, glued down, so it's not an issue.
Unfortunately, that was it.
I need to add another layer on the roof, since the rest of the roof only has 1 layer of 1/4" thick plywood on the top of the roof rafters.
Another layer of 1/4" would be quicker, but adding 2 layers of 1/8" would be easier to bend around the curves.
Decisions, decisions. - Using Great Stuff Pro Construction Adhesive for gluing the plywood down.
I think I had mentioned a while back about a shop in Georgia, (I think), that replaces rv roofs, and they use this for their glue, so I figured it must be pretty decent.
I played around with it a while back, and it seems to work pretty well.
- Moving on to the drivers side, after the passenger side has cured.
Clamps, batteries, water jugs, glue..... Lather, rinse, repeat.


- Another view from a different direction.

- This shows what it looks like trying to hold everything in place while the adhesive cures. Clamps, clamps, and more clamps.
Add to that a bunch of weight - (batteries are heavy), so I used 4 of them, and added some water jugs.
That holds things in place pretty well for curing. Curing takes about 3 hours.
- By the way. What ya gonna do, when you don't have enough hands, and are too lazy to go get a bag or box to transport a bunch of plastic clamps?
Well, I used the beltline of my pants.. LOL>>>...
Yea, yea, stop laughing. If you haven't done it, you have probably thought about it. - Here is another pic of the beginning of adding another layer of plywood on the back of the roof.
After cutting this piece, I test fit it, and put 4 gallons of water at the end of the 4' piece. You can see that the plywood does not conform very well to the layer underneath it. (red arrow).
That also is with the very edge of the plywood not fully flat with the edge of the lower layer. All I had on at this point were the plastic clamps on the edge, so adding steel clamps would buckle this part of the plywood up even a little more.
- Well, I just got interrupted. I'll have to finish this tomorrow. Ugh, bummer. :(
- Adding a little extra pressure, takes care of the problem here, but like I said, increases the pressure at the top of the roof where the plywood straightens out.

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38,769 PostsLatest Activity: Dec 31, 2014