Residing and insulating an 1880’s farmhouse
(Not sure I picked the right forum)
Hi, first post. We just bought a 4K sq.ft. farmhouse in the Catskills and are about to start major renovations. It’s a wood frame house with traditional lapboard siding, no sheathing or insulation and single pane windows. We’ve already ordered the new windows and decided to go with HardiePlank for the siding.
We know you can’t just install HardiePlank over old siding, but can you sheath (OSB Zipboard & tape) over the existing siding and then install the HardiePlank? The siding tested positive for lead paint in a couple spots and we’d rather not disturb it if we don’t have to. We are going to gut the inside of the hosue as well so we’ll still be able to add insulation when we do that. It will save us a huge chunk of money if we don’t need to remove the old siding (and lead paint).
Anyone ever do this? Have thoughts on it?