b'ASK THE EXPERTSAsk the Experts Q&As are culled from member inquiries to NTCAs Technical Support staff. To become a member and make use of personal, targeted answers from Technical Support staff to your installation ques-tions, contact Jim Olson at jim@tile-assn.com.QUESTION fulljointsandgreatresultswith Iamlookingforanopinion.Itodays materials. I suggest check-haveinstalleda4x8porce- ing with the setting material com-lainoutdoorswiththinsetwithpany that makes the thinset youll 1/4joint.Iwantedtogroutthebeusingfortheirsuggestionsof old fashioned way with our mudgrout for your installation.cementwithextraPortlandRegardlesswhichgroutsystem cleaned with sawdust. I feel thatyouuse,anexteriorinstallation thejointswerefullyearsago.hasmanycriticalelementsthat Thankyousomuch,Ilookfor- must be addressed. Please refer to ward to your opinion. the Tile Council of North America Handbook For Ceramic, Glass and Stone Tile Installation for the appro-priate method, details and materi-als for this installation.Mark Heinlein NTCA Training DirectorQUESTIONIhaveacustomerthathasa shower stall they would like updat-ANSWER edalittle.Newcustomglass Whilethesystemofgroutyouenclosure,newfi xtures,anda described may work well, depend- newpan?Thetwowallsofthe ingonyourratioofmaterials,shower are white quartzite. She is many of the modern grouts avail- in love with it and does NOT want abletodayhavebeenengineeredto remove it. However, the pan is tostanduptoharshclimatesfi berglass. She does not like it and and use. ithasstainsthatwontgoaway. Reading and following manufac- She would like to have some kind turers instructions carefully, alongof stone or tile to replace the pan.with a little practice, will produceMy questions: 22 TileLetter | August 2019'