Yes by all means, 100% silicone, preferably mildew resistant. CR Laurence or Dow 795 (I believe) are good silicone's to use.

I also have a question about this that I'm hoping maybe Bill can answer. Our GC is working with the company for our framless shower doors, and this is the email I received from him this morning regarding the placement of the doors in relation to the chair rail that goes all the way around the room, including through the shower. "If the door is hinged on the wall as we discussed, we will need to bevel out the chair rail because it is 1/8" of an inch too big. The bevel would then be filled with grout. This will allow the door to swing without it binding on the chair rail." Does this seem like a good idea? I'm a little hesitant since I have no idea how it will look, and I don't seem to be able to find any images online. Our experience with the contractor has been fantastic but at this point I am slightly annoyed that we weren't advised how the chair rail would affect the glass placement. The glass is already costing us more than expected, and adding another stationary panel will add even more to the total, but that said, we don't want to make the wrong decision in the long run. Advice?

Phylhl, your shower is beautiful! Kmcg, very true cost is a factor:) Our contractor hired a sub to install a frameless enclosure & one of the only things we requested in the design was that they cut around our marble chair rail that runs through bath & shower - well, apparently they didnt listen and upon install they not only cut our tile on the wall but they cut a notch in our marble tub surround that also juts into the shower. The notch was not something that was discussed when we discussed the design. Needless to say we are very unhappy with the installation. There are multiple other problems as well - door appears warped, leaking at clip, door leaks(no space for sweep left under door), mitered corner leaks, chip in top of door, VERY sloppy silicone....the list goes on. These are the things we have found & the installer admits there are more problems we havent noticed. Also admits to lack of communication before & during install. We are going to ask that they take down glass, have tile replaced as well as the marble notch be filled in & reinstall new enclosure with cuts around tile & marble. My faith in the company is not that great now but I think the right thing to do is allow them to try & fix it. UGH! To make matters worse our contractor isnt being very supportive - glass people long time family friends. Cant believe our complaints! Good thing we are almost finished & he will not get final payment until we are satisified. Curious to see if we are expecting too much from the installer/owner.

I want to reduce fall risks as we age / guests age. There should be a vertical grab bar where you enter a shower or tub so you don't have to reach across the tub to the tile wall. Based on really helpful comments below about glass, my thought is to scrap idea of a walk-in shower with glass on two sides. (@JospehCorlett you may win!) ** What are everyone's thoughts on this idea instead? ** Note, this tub will not be used for baths. We have another bathroom for that in our main apartment down the hall. This is primarily for guests and sometimes for us.: (1.) Have a low tub - current vintage reglazed or new as low as possible, with the widest tub floor space possible. Suggestions appreciated! (2) Shower head, adjustable handheld, and tub spout on the long wall nearer window, spraying towards sink. (3) Build wall between tub and a new sink as in pic below. Shower controls mid-height on this wall - no need to bend down or reach to far long wall to turn on water. (4) Vertical grab bar on new wall inside shower, horizontal grab bar on long wall at standing height. (5) Use shower curtain rod as in second pic below. U and L shaped vintage look ones too unsturdy. Pros: Entry grab bar, takes care of weird window issue complicated by glass, fewer NYC permits needed than converting from tub to walk in. Cons: Tiny area for new sink. Evens out: Lifting leg into tub isn't great for aging in place, but grab bar helps with that and if someone is super limited range of motion they can stay in an ADA accessible hotel! Real estate pic of a unit in our building with wall between vintage tub and sink. Real estate pic of another unit with sturdy looking ceiling shower rod, low looking tub. Forget glass shower panel.