69
n
Installation details
Structural floor slab
Ribbon screed
65 mm
Structural floor slab
Slab may need removing to
accept service outlet box
Ribbon screed
25 or 38 mm
60 mm
Structural floor slab
Ribbon screed
Minimum 30 mm
screed above ducting
Maximum 15 mm adjustment
Service outlet box / junction box
adjust height to final finished floor
level before pouring screed
25 or 38 mm
Flush lid floor trunking in screeded floor
Ne wIn sta la io n
Recommended minimum
screed depth =
trunking depth
plus nominal 15 mm
Structural floor slab
Ribbon screed
Chequer plate floor trunking in screeded floor
Ne wIn sta la ti n
Recommended minimum
screed depth =
trunking depth
plus nominal 15 mm
Structural floor slab
Ribbon screed
Recessed lid floor trunking in screeded floor
3·5 mm deep
recess
Recommended minimum
screed depth =
trunking depth
plus nominal 15 mm
Structural floor slab
Ribbon screed
Ne wIn sta la tio n
Flush floor trunking in screeded floor
Shallow flush floor trunking in screeded floor
Underfloor duct in screeded floor
