HardiPlank Over Cedar..?

buckleyclan

Hey Ya'll,

I am starting a rebuild of sorts soon and have some questions.
The garage had to be re-trussed due to snow load failures.
My part of the job is to side from the wall-to-truss transition, all the way up to the peak of the gable end, and install soffits all the way around.
The architect/eng specified HardiPlank for siding so I am essentially starting where the existing cedar siding stops and continuing up.

1. What should I do, if anything, at that transition from cedar to hardi?
2. The A/E spec'd sheathing the gable end in 3/8" osb prior to siding.Hardi states that you need 7/16 to nail to. Do you think that the 1/16" thinner sheathing will transfer more ripples/waves in the appearance or that it will provide too little purchase?

Thanks for your feedback.

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You can't direct the wind, but you can adjust your sails!

Tom Struble

you got all those nice studs to nail into,thats the best for hardie

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Tom

RadRemod

You could install and flash a Band board. But thats normally used for changing siding types and that might not look asthetically correct there since your going lap to lap.
As for the 3/8" osb I'd use whatever makes the transition smother. However, make sure all your nails hit the studs and joints too.

M. A. Hansen Co

I take it they want hardi because of the cost of cedar! If you are really worried about the plywood I would use CDX over OSB and nail your hardi to the trusses using a ring shank nail even though Hardi recommends a smooth shank nail.

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woodworkbykirk

sounds good to me, i always nail to studs with harti or clapboard indirectly, we foam all our walls then put nailing decking to the studs to create our rainscreen then nail siding to that

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putting down subfloor with glue and screws, well i saw dr. smith and the robot too , i had a martian burger and a sonic shake

buckleyclan

thanks for the input.
We are going with Hardi since that's what the A/E has on the approved plans.
In rural areas of CA, we are not allowed to put any siding, overhang, roofing, etc that is not class A fire rated, even when rebuilding an existing structure.
It's all about the wildfires.
Leave it to stupid CA to regulate the construction industry, rather than spending some of our tax dollars on thinning the dang forest...

__________________
You can't direct the wind, but you can adjust your sails!

wheeler

ban board the transition. suggest a mockup w/trim details