Air sealing existing house – major reno
We’re embarking on a new project, stripping off the siding and adding several inches (4-6″) of polyiso to the exterior. We’d like to be able to do a blower door test before we add the rigid to make sure we’ve done a good job air-sealing. The existing, for the most part, is a post & beam frame with 2x infill framing, plywood sheathing (looks like 1/2″ CD or CDX) and then 1″ of EPS covered with 1x ship-lap pine. Plan is to use some kind of housewrap, full coverage ice & water on the roof, presumably some gasketing or spray foam will be necessary at the sill. Anyone have any clever ideas for products or methods?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part