20 –
TANDEM
®
SYSTEM
A
D
F
G
E
C
B
A
D
F
G
E
C
B
TYPICAL CROSS SECTION
A Capping unit (for double-sided wall)
B Veneer units
180 mm × 67 mm × variable
(7 1/16" × 2 5/8" × variable)
C Double-sided connector
D 20 mm (3/4") clean stone
E Granular base 0-20 mm (0-3/4")
compacted 300 mm (12") min .
F Min . buried depth of 150 mm (6")
G Starter unit
90 mm × 200 mm × 400 mm
(3 9/16" × 7 7/8" × 15 3/4")
TYPICAL CROSS SECTION
A Capping unit (for double-sided wall)
B Veneer units
90 mm ou 180 mm × 67 mm × variable
(3 9/16" ou 7 1/16" × 2 5/8" × variable)
C Double-sided connector
D 20 mm (3/4") clean stone
E Granular base 0-20 mm (0-3/4")
compacted 300 mm (12") min .
F Min . buried depth of 150 mm (6")
G Starter unit
90 mm × 200 mm × 400 mm
(3 9/16" × 7 7/8" × 15 3/4")
BUILDING A DOUBLE-SIDED WALL
DOUBLE-SIDED LAFITT AND MELVILLE TANDEM WALL
WITH 180 mm VENEER UNITS
Note: Lafitt and Melville Tandem 180 wall modules must be
assembled using pairs of double-sided connectors installed one
on top of the other for greater stability .
DOUBLE-SIDED LAFITT AND MELVILLE TANDEM WALL
WITH 90 AND 180 VENEER UNITS
UNITS E – E
180 mm × 67 mm × 335 mm
(7 1/16" × 2 5/8" × 13 3/16")
UNITS F – F
180 mm × 67 mm × 402 mm
(7 1/16" × 2 5/8" × 15 3/16")
UNITS G – G
180 mm × 67 mm × 469 mm
(7 1/16" × 2 5/8" × 18 1/2")
180 mm (7 in)
300 mm (12 in) min .
180 mm (7 in)
720 mm (28 in) max
300 mm (12 in) min .
711 mm (28 in) max