GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Plus Icon Minus Icon Picture icon Hamburger Icon Close Icon Sorted

Community and Q&A


JTBuild | Posted in Energy Efficiency and Durability on

I recently purchased a 1930’s brick and aluminum-sided two-family home in Teaneck, NJ. The insulation in the upstairs apartment is very old and dilapidated and lining the roof. The outside walls in both apartments are not insulated, it would seem. I would like some ideas about insulation. Can call me, too, 646-245-3801.



GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.


  1. GBA Editor
    Martin Holladay | | #1

    Green Building Advisor has lots of information on insulation. Start with our encyclopedia articles:

    Insulating Roofs, Walls, and Floors

    Insulation Choices

    Batt and Blanket Insulation

    Blown-In or Loose-Fill Insulation

    Rigid Foam Insulation

    Spray Foam Insulation


Log in or create an account to post an answer.


Recent Questions and Replies

  • |
  • |
  • |
  • |