How can I insulate my glass block windows?

My glass block windows get pretty drafty in the winter. Is there an easy and low cost way to insulate them besides covering in plastic?

  3 answers
  • Agnes Chrzanowska Agnes Chrzanowska on Oct 23, 2019

    I dont think it is any way you could do it except to block it during winter

  • Oliva Oliva on Oct 23, 2019

    You may have more success with thermal draperies, which can be opened on sunny days.

    Have you checked to insure that they were properly installed?

    Do they have the small window that admits outside air? If so, the gasket may need replacing or you may need to install narrow/slim fitting weatherstripping.

  • Lucky Home Today Lucky Home Today on Oct 24, 2019

    Black out curtains might help.

    Did you check the around the grout to see if it needs to be redone?