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Old 09-19-2017, 08:54 AM   #1
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Installing Hardie Board Over Strapping?


Good day

I'm in the middle of a shed project and originally I was going to cover it in wood siding.

A few friends of mine told me I needed to put strapping against the wall to allow the back of the wood siding to breath.

Since then the powers to be have changed their mind and now they want me to put down four by eight sheets of Hardie Board in a board and batten pattern.

Do I need to remove the strapping or can I install the hardy board right on top of the strapping?

Thanks for the advice.






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Old 09-19-2017, 09:55 AM   #2
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Re: Installing Hardie Board Over Strapping?


Where is the home?

Might be a good idea to fill that gap with insulation as long as you are strapped on enough to support the sheets.
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Old 09-19-2017, 09:58 AM   #3
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Re: Installing Hardie Board Over Strapping?


It's a shed and it's in Ontario. I just use it to store summer stuff like kids toys and a lawnmower. The strapping is attached to the studs.


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Old 09-19-2017, 01:31 PM   #4
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Re: Installing Hardie Board Over Strapping?


I'd pull the strapping and put the Hardie tight to the house wrap / sheeting. My luck, some kid throws a ball, have it hit between the strapping and crack the siding.
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Old 09-19-2017, 01:32 PM   #5
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Re: Installing Hardie Board Over Strapping?


It's a rainscreen now! It's a viable way to put on siding, and it does allow wood siding to breathe and dry out evenly on both sides.
For Hardie, on a shed, I don't think it will give you much benefit, but it won't really hurt either. If it were the planks you might have an issue with them breaking a little more easily from those rare impacts (like a baseball line drive!), but the full size sheets should be fine. Just make sure you put some Cor-a-Vent or equivalent at the top and bottom to keep the bugs out.
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Old 09-19-2017, 01:34 PM   #6
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Re: Installing Hardie Board Over Strapping?


Quote:
Originally Posted by 47_47 View Post
I'd pull the strapping and put the Hardie tight to the house wrap / sheeting. My luck, some kid throws a ball, have it hit between the strapping and crack the siding.
Ha! You beat me to it by a minute while I was still typing. The big Hardie panels would have less of an issue I think, and if I was really worried and didn't/couldn't get that strapping off easily, I'd just slip in a little more strapping in the middle and call it good.
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Old 09-19-2017, 01:38 PM   #7
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Re: Installing Hardie Board Over Strapping?


All solid siding want to be rainscreened now. It is not about the siding it is about the rest of the structure breathing. Bug screen the bottom, it comes in 6" rolls.
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Old 09-19-2017, 01:40 PM   #8
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Re: Installing Hardie Board Over Strapping?


Thanks for advice by not removing the strapping it is really going to save me time.


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Old 09-19-2017, 01:43 PM   #9
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Re: Installing Hardie Board Over Strapping?


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All solid siding want to be rainscreened now. It is not about the siding it is about the rest of the structure breathing. Bug screen the bottom, it comes in 6" rolls.
Even houses get strapped?
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Old 09-19-2017, 01:53 PM   #10
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Re: Installing Hardie Board Over Strapping?


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Even houses get strapped?
Except vinyl because it can breath already.

House wrap or tar paper
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