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1815.5 Segmental Retaining Walls. Segmental retaining walls shall be designed in accordance with NCMA Design Manual for Segmental Retaining Walls SECTION 1816 TERMITE PROTECTION 1816.1 Termite Protection. Termite protection shall be pro- vided by registered termiticides, including soil applied pesti- cides, baiting systems, and pesticides applied to wood, or other approved methods of termite protection labeled for use as a preventative treatment to new construction. See Section 202, REGISTERED TERMITICIDE. ~pon completion of lli.e <Ipplir<ltion of the termite protective treatment, a Certificate of Compliance shall be issued to the building department by the licensed pest control companv that con- tains the following statement: fThe building has received a complete treatment for the prevention of subterranean ter- mites_ Treatment is in accordance with rules and laws estab- lished by the Florida Department of Agriculture and Consumer Services.") 1816.1.1 If soil treatment is used for subterranean termite prevention, the initial chemical soil treatment inside the foundation perimeter shall be done after all excavation, backtIlling and compaction is complete, 1815.5 - TABLE 1815.4 1816.1.2 If soil treatment is used tor subterranean termite prevention, soil area disturbed after initial chemical soil treatment shall be retreated with a chemical soil treatment, including spaces boxed or tomled. 1816.1.3 If soil treatment is used for subterranean termite prevention, space in concrete floors boxed out or tormed for the subsequent installation of plumbing traps, drains or any other purpose shall be created by using plastic or metal permanently placed forms of sufficient depth to eliminate any planned soil disturbance after initial chemi- cal soil treatment. 1816.104 If soil treatment is used for subterranean termite prevention, chemically treated soil shall be protected with a minimum 6 mil vapor retarder to protect against rainfall dilution. If rainfall occurs betore vapor retarder place- _ ment, retreatment is required. Any work, including place- ment of reintorcing steel, done after chemical treatment until the concrete floor is poured, shall be done in such manner as to avoid penetrating or disturbing treated soil. 1816.1.5 If soil treatment is used tor subterranean termite prevention, concrete overpour or mortar accumulated along the exterior foundation perimeter shall be removed prior to exterior chemical soil treatment, to enhance verti- cal penetration of the chemicals. - TABLE 1815.4 REINFORCEMENT FOR MASONRY RETAINING WALLsa Nominal Wall Reinforcement size & spacing for equivalent fluid Wall depth, weight of soil, pcf (kNlm3), of: thickness, H, ft (m) in. (mm) 30 (4.7) 45(7.1) 60 (9.4) 8 (203) 4.0 (1.2) #4 @ 64 in. #4 (ii! 40 in. #4 @ 32 in. 4.7 (1.4) #4 @ 40 in. #4 (~. 24 in, #4 @ 16 in. 5,3 (1.6) #4 @ 24 in. 114@. 16 in #5 @ 16 in. 6.0 (1,8) #5 @ 24 in. #6 Iii!. 16 in. #8 @ 16 in. 6.7(2.0) #5 @ 16 in, #6@ 8 in. = 10 (254) 4.0 (1.2) #4 @ 72 in. #4 @ 64 in. #4 @ 48 in. 4.7(1.4) #4 @ 56 in. #4 @. 40 in. 114 @ 24 in. 5.3 (1.6) #4 @ 40 in, #4 @ 24in. #4 @ ]6 in_ 6.0 (1.8) #4 @ 24 in. #4@ 16in. #5 @ 16 in_ 6.7 (2.0) #4@ 16 in. #5 @ 16 in. #6@16in_ 7.3 (2_2) #5 @ 24 in. #6@ 16 in. #6@ 8 in. 8.0 (2.4) #5 @ 16 in. #6@ 8 in. = 12 (305) 4.0 (L2) #4 @ 72 in, #4 Iii!. T2 in. #4 @. 64 in. 4.7 (1.4) #4 @ 72 in. 114 (ZiJ. 48 in. #4 @ 40 in. 5.3 (La) #4 @ 48 in. 114 @ 32 in. #4 @ 24 in. 6.0 (1.8) #4 @ 32 in. 114 @ 24in. #4 @. 16 in. 6.7 (2.0) #4 @ 24 in. 114@ 16 in. #5@16in. 73 (2.2) #4(;1), 16 in, #5@ 16 in. #6 @ 16 in. S.O (2.4) #5 @. 24 in, #5@ 16 in. #7IZiJ. 16 in. S.712.7) #5 (QJ 16 in. 117@ 16 in. #7@ Sin. 93 (2,S) #6 @. 16 in_ 1171ilj 8 in. = a hased on fully grouted masonry; f'm = 1500 psi (10.3 MPa); d = 5 in.. 7 in, Clnd 9 in. (127,178 ma 229 mm) tor wall thicknesses ofS, 10, and 12 (203.254, and 305 mm), respectively: level backfill to top of wall. FLORIDA BUILDING CODE - BUILDING 18.21