I worked on my in-laws place again yesterday, and after stripping away
some of the trim boards, I discovered the carport wasn't as racked as I
initially thought. Maybe 1" out of plumb instead of the 3-4" I originally
measured. That's straighter than the house itself, good news there.
So, I started connecting the carport with the house structure, and by the
time I got the sheathing built out for an even plane up the entire wall,
I was happy to discover the flashing fit tightly against the sheathing
as-is. It's a bit angled near the bottom, but not enough to be an issue.
So, the siding will lap the flashing just fine. I decided to just order
the Dryflekt kickout diverter flashing so that should take care of the
water running down the wall at the intersection. I still need to replace
the fascia board near the house, but otherwise it's all good to go. The
windows are supposed to arrive this week, so I should be able to get
those in next weekend.
New problem (more accurately, an old problem), the carport is built on a
simple concrete slab. This put the siding/sheathing way too close to the
ground, 2" at most, almost touching in other areas. As you would expect,
the siding near the ground has serious rot issues.
Obviously, building a new foundation is out of the question right now, as
is adding a row of block or bricks at the bottom of the wall. So, I'm
looking for more of a "quick fix" make-do solution. I wish I could do
the job properly, but it's just not within the constraints of time or
budget right now.
So, I'm thinking of ripping off the bottom 6-8" of the rotted siding, and
attaching a strip of something a bit more waterproof. I initially thought
of using something like cement based Hardie siding, but I don't know if
it would hold up in a near ground contact situation like that?
Another option might be composite decking like Trex, but again, I don't
know if it would hold up in ground contact? Also, it's a lot thicker
than I need (1-1/2 vs. 1/2") so I would have to rip it into thinner
strips. But for that to look nice I would need to run them through my
planer afterwards, and I have no idea if composite decking material can
be planed successfully? I've only seen Trex in 2x6 sizes, so it's a
little shorter (5-1/2") than I had hoped, but it's better than nothing if
the thickness and rot resistance worked out.
The other option I thought of is that PVC trim board material.
Unfortunately, I can't say I've ever seen it available locally, and I
believe it's only available in white?
I haven't used any of these products myself, so I have no experience with
them. Are there any other options I may have overlooked?
Unfortunately, that's not an option. As it is, the house and carport kind
of sit in a depression compared to the surrounding houses and the yard is
already sloped away from the buildings as much as possible.
I have a band saw, and whatever I use will be backed with a heavy wood that
sits on the carport slab. So it doesn't have to be overly sturdy.
That's kind of what I figured but since I've never worked with it I thought
maybe I didn't understand it fully. Thanks for confirming.
Trex is wood and plastic composite, I believe. At any rate, it works just
fine with ordinary woodworking tools. I ripped deck boards down the middle
on my bandsaw to make trim boards for my porch. I have routed the ends of
boards with round-over bits. I kept all my scraps and have made a number of
brackets, etc out of Trex, it is a great material for working with.
It is available in 3/4" trim boards anyway, although they are much more
expensive than the deck boards.
Painting PVC can be 'fun'. Look for a paint that uses Acetone for a
thinner, and you'll have a paint that is *more* likely to stick. I
spray a (light) coat of straight acetone about 10 minutes before
spraying the PVC trim, a second about 2 minutes before, then
immediately hit it with the top coat. The two straight acetone sprays
soften the PVC surface (don't use too much) and allow the paint to
grab. Done right, the paint is almost impossible to get off. (Done
wrong, it will peel off in under a year!)
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