How do I close the 1/2 inch gap around top of shower stall?

My husband took our shower apart due to the mold/mildew underneath all the caulking and is redoing. He also removed the shotty caulking around the top of the shower stall (where it meets the wall) with the intention of redoing it. However, we discovered that there is a 1/2 inch gap there. What is the best and most feasible way to do this? Buy mildew proof board and cut and chisel a strip to fit in the top areas??? Or tile it? If we tile it, do we need to pack something in the gap area first for the tile to stick correctly?? Thanks for all your help. We're not really sure what to do and want our shower stall back. Thanks!
Bethany

 

Hello, if you want to tile the area, just fill in the gap with thinset at the time you set the tile. Is your husband just going to recaulk or repairing the areas that water is getting behind the tile? I ask because if he just recaulks you will prob. have the same problem since water is getting under it. Check the grout lines for any hairline cracks. Good luck.

John

 

Thanks for responding! Yes, my husband will recaulk the area around the metal door fame once he puts it back together. All that's there right now is the plastic molded shower. There is no tile but I thought it might be a way to cover the gap around the top edge of the shower where the shower mold meets the wall - that's where the gap is. There is no water damage back there - my husband only found the gap because he ripped off the really bad caulk job that was done around the top. It was so sloppy. When he pulled it off we noticed it was soft around the edge there. At first we thought there was water damage but once we poked through, we discovered that they had just layed a paper down and spackled and then caulked to fill it in. We just wanted to fix it right and not have globs of caulk to fill it in. I'll tell him about the thinset. Thanks. I take it they don't make a "foam" product to fill in areas like that??? I thought they did. Thanks.
Bethany