Issue with HardiBoard over exterior foam and strapping
I will be building new soon and found a builder willing to do 1.5-2″ of external foam (zone 5) our plan is either brick veneer or a craftsman style with hardiboard siding. The plan was to use strapping (1×3 – 1×4) over the foam for a place to nail the siding, however, the siding contractor rightfully pointed out that hardiboard is fragile and if struck between the strapping the hardiboard could snap. His preference (and the manufacturer specified) method is to have a continuous backing under the hardiboard. He mentioned success in attaching the board directly through 1.5″ foam but I am unsure of the viability of this method.
Has anyone used hardiboard over external foam board and if so how was it attached?
Any other gotcha’s?
(and yes we thought about smartside but most general’s around here are wary of it and the two siding contractors I talked to refuse to use it as they say within 5 years it no longer looks good ???)
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