Hardie 10’ panels too short for 10’ walls?

6 years ago

Part of our addition has 10’ walls. We were planning to use Hardin board and batten. For some reason, it looks like the hardie 10’ panels are going to be too short. I don’t know if it is how my contractor does things, but walls are slightly longer on exterior. I asked at lumber supply shop and they said 10’ panels should work for spaces with 10’ walls. However they also said there should be about 18” of foundation showibelow the siding. My contractors. wall go down lower than that so there is maybe 9” of foundation showing. Is my contractor doing something wrong if the 10’ panels are too short for the 10’ walls?

also I think a horizontal seam would look strange since there would only be maybe 6-8” of additional siding needed above or below the seam - not a clean look. I have seen people use hardie soffit panels as siding because they come in 12’ lengths so would eliminate need for a seen on walls over 10’. Is the soffit material ok to use as siding? Or will it end up warping or having other durability issues. If we do use soffit material as siding, anything I should make sure my contractor does when installing?

Featured Answer

PRO

PPF.

6 years ago

last modified: 6 years ago

Floor structure might be set on top of the foundation (first image), or inside (second image).

If on top, the siding needs to be longer to cover the wood structure.

A comment from another post I made.

Someone had a 12' high wall with seams at 10'.

One key is batons need to be spaced evenly across the wall.

Painting the panel different from the batons where the pattern is would make it stand out.

---------

I've done this type of detail in the past. Showing a 12' high wall, battens with 12" spacing. Creating a modified pattern at the 10' joint line.

Pick one pattern and repeat, not random as shown.

This might reflect the grid pattern in the windows, or tie to some other pattern around the home.

Comments (12)

doc5md
6 years ago
A picture is worth a thousand words
PRO
Mark Bischak, Architect
6 years ago
Ask the manufacturer, however you spell it.
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kudzu9
6 years ago
It's not clear: Have the foundations already been poured?
bardzil
Original Author
6 years ago
Yes the exterior walls are already framed
kudzu9
6 years ago
PF-

Nice detail for 12' high wall. I would just add that, whatever the OP does, he needs to be aware that the horizontal seam must have a low profile drip cap to keep excess water from getting in at that juncture. It can be hidden by the battens, but should not be considered optional or unnecessary in my experience (as one who has vertical Hardie board 1X10's with battens on walls that are up to 18' high at the peaks).
bardzil
Original Author
6 years ago
The floor structure is on top of foundation. Is that not typical? If it is done that way frequently, why would Hardie make taller panels. In many parts of country, aren’t 10’ ceilings common?

is there any other product I could use on just their section to avoid the seam? I am thinking cedar. Would that be smooth like the smooth hardie?

I can’t do the separate pattern because it wouldn’t be enough space. It is 12’. It is maybe 10’8”.
kudzu9
6 years ago
bardzil-

Cedar won't look like Hardie, or last as long. You could make space for a decorative batten pattern at the top by lowering the 10' panels or even shortening them. You don't have to use the exact pattern PPF showed you, even though it's a nice one.
PRO
PPF.
6 years ago
It is maybe 10’8”.

Why not use trim at the top?
bardzil
Original Author
6 years ago
trim at the top is a good idea. however, it would help if I could find a picture of that. I'm not sure exactly how it would look. The hardie soffit panels are 12' long and .25" thick. I've seen at least one builder use them as siding for taller walls. Would this work? Or do I risk they won't be durable?
PRO
Mark Bischak, Architect
6 years ago
What did the manufacturer say?
kudzu9
6 years ago
My vertically applied Hardie panels are 1'X10' by about 1/4" thick, too. Zero problems after 17 years. Why do you think the soffit panels won't be durable?

Hardie 10’ panels too short for 10’ walls?

PPF.

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