My dad has a house that no one lives in bad deal. I went by to check on it and some one had thrown snow balls and broke out some windows. He had replaced some of them 2 or3 years ago and reglazed others. The glaze has fellout of them. I replaced some glass in my house 1year ago and it is comeing loose. What are we doing wrong. I dont know what will become of this house would plexiglass stand up better as with snowballs.