Spray foam, solar attic fans

3 yrs ago we had spray foam  put in attic to help cut elec cost. It was installed  incorrectly ,therefore giving  me MCS,EI. Noting,no saving  on electric. A few weeks ago… 3 yrs ago we had spray foam  put in attic to help cut elec cost. It was installed  incorrectly ,therefore giving  me MCS,EI. Noting,no saving  on electric. A few weeks ago…Read MoreGreenBuildingAdvisor