Stowell solutions
for separating floors
to help satisfy Robust Details part E
ROBUST
DETAILS E-FC-6
• joist*
and block floor with precast or insitu edge joists • screed
laid on Regupol E48 resilient layer system • for
use with dense aggregate block flanking walls only
Screed
65mm (min)
sand/cement screed, or 40mm (min) proprietary screed,
nominal 80kg/m2 (min) mass per unit area
DPM
0.2mm (min)
waterproof membrane
Resilient
layer
8mm Regupol E48, dimple
side down, fully lapped up walls and Regupo tape
jointing
Structural
floor
Stowell joist and block,
min 100mm thick Stowell dense aggregate infill blocks,
with min 50mm concrete topping (C16/20 10mm max.
aggregate S3) min 300kg/m2 mass per unit area – for
cut rows, see section 5 of Robust Details Part F
Ceiling
min 300mm from top
of joist to ceiling board (one layer of nominal 10kg/m2
gypsum-based board), min 50mm mineral fibre quilt
in void to cover whole ceiling board area.
ROBUST
DETAILS E-FC-7
•joist*
and block floor with precast or insitu edge joists • using
floating floor treatments
• for use with dense aggregate block flanking
walls only
Floating
floor
see section 7 of E-FC-7 Robust Details Part E for suitable floating
Screed
20mm (min) sand/cement screed
Structural
floor
Stowell joist and block, min 100mm thick Stowell dense aggregate infill blocks, with min 50mm concrete topping (C16/20 10mm max. aggregate S3) min 300kg/m2 mass per unit area – for cut rows, see section 5 of Robust Details Part F
Ceiling
min 300mm from top of joist to ceiling board (one layer of nominal 10kg/m2 gypsum-based board), min 25mm mineral fibre quilt (min 10kg/m3) in void to cover whole ceiling board area.
*Commonly
known as beam
Loadings
in kN/m2
Imposed
live load
1.5
2.0
2.5
Partition
allowance
0.5
0.5
1.0
Finishes
& ceilings
0.3
0.3
0.3
65mm
screed
1.56
1.56
1.56
Max
clear span in metres
3C
2.95
2.85
2.70
5C
3.60
3.45
3.20
3C
3.35
3.25
3.10
5C
4.05
3.90
3.75
3C
3.75
3.65
3.45
5C
4.55
4.40
4.20
3C
3.90
3.80
3.60
5C
4.75
4.60
4.40
3C
4.50
4.50
4.30
5C
5.65
5.45
5.20
This table refers
to simple, uniformly distributed loads only and is
only a guide
...for guidance only
Stowell 155mm deep C type
T joists are available in two different wire formats:
• Type
3C 4500mm
max clear span • Type
5C 6000mm max
clear span
TYPE 3C
TYPE
5C
DOWNLOAD
PDF DATA SHEET
FOR THIS PRODUCT
Download
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external
(flanking) wall - dense aggregate
concrete
topping* (C16/20 10mm max aggregate S3)
cut
Stowell 75mm
concrete block
7.3N/mm2
internal
wall
junction
300mm
wide Stowell HC300 hollowcore plank (600mm unit
cut lengthwise)
