© 2019 International Masonry Institute www.imiweb.org

Tile shower assembly |Detail 06.110.0421 Rev. 09/27/19

Metal studs, CBU backing, bonded waterproof membrane, two-stage drain

KEY WORDSTile, Ceramic tile, Mortar bed, Mud bed, B421, Shower, Shower receptor, Topical waterproofing membrane

KEY NOTESConcrete slab05

Premanufactured curb10

Mortar backfill after waterproofing

Cement backer board, embed bottom in mortar bed

29

08

Ceramic tile06

Steel studs08

Two-stage drain assembly35

Sealant at drain collar as req'd

74

Clamping ring58

Weep protection59

Vapor retarder, optional61

Fiberglass mesh tape at backer bd. seams; embed in thinset mortar

65

Cementitious bond coat24

22

05

06

06

10

21

24

24

29

74

58

59

35

61

06

65Mortar bed, slope 1/4" per foot to drain; remove mortar around drain for waterproofing

21

22

24

24

62

Topical waterproofing membrane, liquid applied

62

62