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Vintage Sheathing

437 Views 6 Replies 5 Participants Last post by  Old Thomas
Anyone know the history of this product or what it is made of? Tearing off vinal siding and what appears to be old wood siding and wondering if this has good nail holding properties. Seems to but never seen this before. House was built in 1965


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This is a quote from another site, purported to be from Johns Manville. It is an early 60's product. Not sure I'd use it.

“An extra strong 1/2″ insulating board sheathing made of bitumen-impregranted wood fiber; comes in 4’x8′ and 9′ sizes; used as a sheathing for exterior walls and as an interior or exterior siding for utility structures; combines exceptional nail holding strength with insulating value.”
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