Condensation on storm windows
I live in a 1920’s house, climate zone 4, with the original interior wood double-hung windows and triple track storms on the exterior. We have quite a bit of condensation on the interior of the storms and a few of the windows are so bad they get a pretty thick ice buildup on the interior of the storm glass when it’s really cold. I’ve even had to drill additional weep holes in the storms to let the water out when the ice melts. And it causes large ice cycles to form on the siding below the windows as the sun melts the ice then runs out the weep hole and refreezes.
I’ve started to weatherstrip the old wood windows and I’m planning to replace the storms with Allied storm windows this summer. What’s the trick to reducing the condensation? It’s obviously air entering the window cavity around the wood windows from the interior – but I’ve read that weatherstripping is sometimes not the best answer as the wood needs air to dry and the weatherstripping, or at least too much of it, could cause problems.
I’ve also read you don’t want to seal up the exterior storms too much because you want fresh air from the outside to help reduce the condensation.
So, any thoughts on the best approach to weatherstripping or not, sealing up storms or not, etc.?