Hello and thank you all in advance
I recently insulated my moms basement, at her request, with pink insulation. Older house built in 36'.
Since then her kitchen pipes, both hot and cold water AND one copper, the other pex, have frozen three times now. The plumbing runs from basement to outside wall, vertically across sil plate, then threw a hole and finally under the sink. When I installed insulation, I put it around the pipes as best as possible.....however also put it infront of basement windows to temporarily stop drafts. I feel that the insulation has stopped air flow in basement, thus a warming effect, and has made the pipes susceptible to the cold by being so close to exterior wall/ plate. Any ideas would be great.....previously pipes had never frozen and shes been there since 70's. Thanks again
P.S. no other pipes have frozen...only these leading to kitchen sink....no cracking has occured and i have thawed them with hair dryer