Hardi Board Question

[Drjay9051]

Enclosing the pole barn. Still undecided on roll up vs traditional panel garage doors.

Anyway: I am going to use Hardi Board as a search seems to confirm it is more durable (in most cases) than T-111.

My biggest question is if I should have some thin OSB or plywood behind the Hardi Board.

This will not be an insulated building but after looking at HardiBoard I envision it cracking pretty easily of struck with an object. A backing would help but is this "overkill"?

Lastly, slab was poured after pole barn was built. The slab ends at the face of the supports. I know to use PT sill plate but how do I finish bottom where the board will be overhanging the slab? Trim? Or just a bead of caulk?

Thanks
Oh yes: different topic but pros/cons of roll up vs panel?

 

[Andybull]

I would not use hardy plank without OSB, or plywood backing. Hardy plank is a fairly strong product, but i've seen it used without backing and would not recomend it.
I installed roll up doors in my hobby shop. This way the doors can be left open and they won't be in the way of the lighting.

 

[mikedprince]

I just completed my new garage with Hardiboard and osb behind it. I love it. Buy the right tool to cut it with. Don't even think about cutting it with a circular saw. It paints easy and holds up well. I think you are on the right track.

 

[CNGsaves]

Sounds like you're going from plain wide-open pole barn, to now wanting to make it a garage. Roll-up garage door is fine for big / tall openings, but don't plan on having airtight seal, or keeping out crawling/flying critters. If it were mine, I'd want a 10'x12' panel door (or wider) if building was big enough.

Not knowing your location, GJer's can only give random guesses what might work in your climate, or country for that matter !

Now would be good time to Update your GJ Profile with City / State.

As for Hardiboard concrete siding, the ONLY way to go for majority of cuts is a DeWalt shears. It cuts right through like butter. Once you get the hang of approx 1/4" waste for cutline that is curled away, it's a piece-of-cake.

Post up some pics of what you're starting with, so you'll get best advice. Good luck.

 

[66HertzClone]

We are going to residing our house with the Hardi plank siding, I think I saw the Makita shears have reversible blades, if you are going to buy one I would take replacement blade cost into account.

 

[QwikKotaTx]

What is the span between supports? If it is more than 4' I would say use a backing. I am going to build a small shed with hardi on the outside and with 16" centers I doubt I will need/use any OSB.

 

[DpSyChO]

Hardi also makes sheets of "plywood" that looks similar to T-111 but is made out the same cement/fiber based material as their plank siding. One of our local Home Depot carries the 4x8 sheets along with the regular plank siding, the other two HD's within driving distance just carries the plank.
Just throwing it out as a option if you can find it.

 

[pmiranda]

FWIW when we remodeled our bathroom we found that our house has hardiboard without any backing. It seems to have held up well for the ~15 years since it was built, but then I've never tried hitting it with anything
That is with studs 16" on center.

 

[Slow Gray Mule]

Just replaced fake stucco with Hardy Plank. I had OSB on the framing, then the tyvek house wrap, then a layer of 3/4" blue foam insulation and the hardi plank to finish it off.

 

[Falcon67]

I have Hardipanel on 24" OC studs. Works and stays flat, but yes - a good blow from something would vent the wall. Put a vapor barrier - Tyvek, 15 lb felt, etc - between the Hardi and the OSB because during sharp temp changes the Hardi will sweat just like a thin concrete wall without insulation.