Dear Jim: I think exterior storm windows would be good, but they are expensive. Will they improve window efficiency much? What is a low-cost simple design I can make myself? – Dennis F. Dear Dennis: ...

Q: I would prefer do-it-yourself exterior storm windows to expensive replacement windows. Is there a good, effective and inexpensive design for do-it-yourselfers? A: Low-cost, home-made exterior storm ...

Question: I think exterior storm windows would be good, but they are expensive. Will they improve window efficiency much? What is a low-cost simple design I can make myself? Answer: Installing ...