My house built in 1928 has concrete filled spaces between the floor joists and rim joist. There are gaps in some of them, some 1" wide with most being very small. I suspect these gaps could be the source of some mice we've caught along with leaking air.

What is the best method and products to fill these gaps to prevent air loss and from rodents entering?Gaps

  • Expanding spray-foam fixes everything ... – brhans Sep 18 '17 at 20:09
  • That was my first thought, curious on the implications of joist rot by using that. I live in Wisconsin and brutally cold winters are common. – remmiz Sep 18 '17 at 22:07

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.