DO NOT SCALE THIS DRAWING . USE FIGURED DIMENSIONS
THIS DRAWING IS COPYRIGHT. DO NOT REPRODUCE IT
WITHOUT WRITTEN PERMISSION
VERIFY ALL DIMENSIONS ON SITE BEFORE COMMENCING ANY
WORK OR SHOP DRAWINGS
INFORM THE ARCHITECTS BEFORE ANY WORK STARTS IF
THIS DRAWING EXCEEDS THE QUANTITIES IN ANY WAY
Section F
Notes:
Face of
external wall
below
1:80 fall
Cavity tray
Weepholes
25mm perimeter continuous
air gap (shown in hatch)
serving 50mm air gap above
rafters
air
Eaves
+26.300
air
gap
air
W5
05
air
Level 5
FFL+25.337
air
reconstituted stone
Top of Roof
+26.320
+26.490
100
lead fascia
air
Top of Flashing
& Airtrak
+25.810
air
air
Nicholson
Airtrak AB
Nicholson CL Ventilator
+25.585
+25.485
air
1:80 fall
air
Top of Nicholson
CL Ventilator to
Lift Overun
+25.750
air
+25.470
+25.415
+25.595
air
+25.400
1:80 fall
air
air
310
tier
100mm
dia.rwp from
main roof
C7
200x8SHS
1:80
fall
1:80
fall
+25.250
1:80 fall
+25.240
1:80 fall
Wood cored
rolls
Sect E
B
Top of Coping
+26.565
150
237
236
235
234
233
232
231
230
229
228
227
226
Lift Overrun Roof
1:80 fall
Sect D
241
240
239
238
Horiz Sect A
lead welt
air
gap
air
Wood cored
rolls
1:80
fall
3
B
All lead details to Lead Sheet Association
recommendations to be found in The Rolled
Sheet: The Complete Manual and online at
www.leadsheet.co.uk
Refer also to B&B Structures drawings
Refer also to B&B M&E/Public Health
drawings
Refer also to Onsite Services Fabrication
drawings
All openings for ventilation into internal wall
and roof voids to be sealed with insect mesh
All timber to roofs and external walls to be
treated.
Code 5 Lead Flashing at junction lift overun
outcrop and perimeter wall
All leadwork shown in dotted hatch on
elevations
126
air
100mm
dia.rwp
from main
roof
W5
05
75
A
Top of Roof
+26.320
lead welt
3180
lead welt
A
Section G
100
3
3x100mm Rockwool Flexi
Continuous vapour control
layer, above suspended ceiling
2x100mm Rockwool Flexi
Lobby
238
copings
237 cavity tray
236
235 weepholes
234
233
232
231 55mm Cellotex inuslation to
230 section of cavity wall
229 enclosing lift shaft. Note: not
required where wall external
228
on both sides
227
226 Lintel over 225 x225
225 opening in both cavity wall
224 leaves to Structural
223 Engineer's details
222 +25.215
221
220
219 Code 5 lead drip into
Alumasc Cast Iron hopper
218
and downpipe
217
216 Code 5 lead flanks, on
215 building paper on 21mm
wpb ply substrate to brick
214
opening to hopper
213
21mm wpb ply on mortar
212 bed on slate closer to head
211 of cavity wall
210
209
208
B&B Structures Fixing details:
Joist hangers for the timber joist for the lift roof
to be fixed to the RHS beams section by shot
fired ( We recommend that 4 Hilti 12mm
X-EDNI steel pins are fired into a steel). Joist
hangers can also be screwed to the steel
(Minimum 4 self drill / tap screws required.
Minimum recommended diameter 5.5mm.)
All 225x47 joists to be Grade C24
Key:
Blockwork
Smeed Dean Stock Brickwork
55mm Cellotex CW4000
100mm Rockwool Flexi
insulation
Vapour control layer below
internal face
Section E
Horizontal
Section A
APPROVAL OF
DETAILS
RESERVED BY
CONDITION 13b.
B
Note: Code 6 lead to main roof. Code 5 to lift
overun outcrop and its roof, and to all
flashings, internal lead lined gully and sump
(Ref: PP/13/00230
Area highlighted in drawing: 1179-155B)
A
Code 5 Lead Flashing at junction lift overun
outcrop and perimeter wall
25
100
+26.020
50
air
Nicolson
Airtrak AB
Level 5
FFL+25.337
air
3X100mm
Rockwool Flexi
Overun roof 47x170mm Grade C16
treated and regularised softwood rafters
at 300mm c/c with noggins as reqd. All
timber joists requiring fixing to steelwork,
to be Tek screwed to steelwork, via joist
hangers were required
Top of
Steels
+25.195
2x 12.5mm Fermacell lining to
internal surfaces of Lift shaft and
riser above this level
2no.47x225mm joists below
stud wall above
Blockwork and head
details tbc
Note to joists, rafters. Tek screw
through hangers as fixing to
steelwork where required
Riser
Lift Shaft
55mm Cellotex insulation
to section of cavity wall
enclosing lift shaft.
238
237
236 +26.490
235
weepholes
234
233
232
231
cavity tray
230
229
228
weepholes
227
Nicholson Airtrak AB to
length of wall
226
25
225
224
55mm Cellotex insulation 223
taken up to top of lead
222
flashing
221
220
219
218
217
216
215
214
213
212
211
210
310
209
208
207
206
205
Section F
Section D
Eaves
+26.300
Top of Roof
+26.320
fall 1:80
open to air at side eaves
U/S Cill
+25.975
airgap 25
insect mesh
continously
over gaps
300
air
210
Top of Flashing & Airtrak
+25.825 weepholes
air
21
+25.585 fall 1:80
air
+25.595
Top of
100mm Rockwool Flexi to flank walls and
roof to lift overrun. Maintain 50mm clear air
gap on external face
25
50
100
Stud external wall of treated 100x50mm
CLS studs at 300mm c/c with,
100X50mm sole and head plates.
Noggins as required
1262 C/L to C/C
airgap
air
3X100mm Rockwool Flexi
MF ceiling
2x225X47mm joists below
stud wall above cut into
web of steel on gridline 3
Shaftwall tbc
Typical ceiling construction:
-100mm Isover APR 1200 sound
insulation
-16mm RB1 Resilient bars at 450c/c
- Continuous vapour control layer
-19mm Gyproc Plank
-12.5mm Soundbloc
Lobby
-Skim coat
air
+25.825 Flashing &
Airtrak
Top of lead flashing behind/ u/s cavity tray weepholes
fall 1:80
air
150
reconstituted stone
copings
cavity tray
50 airgap
reconstituted stone
copings
cavity tray
continuous
below copings
weepholes
246
50mm continuous airgap
238
237
236
235
234
233
232
231
230
229
228
227
226
225
224
223
222
221
220
219
218
217
216
215
214
213
212
211
210
209
208
207
206
205
Highpoint of Low
Roof +25.570
Fermacell and
treated timber stud
enclosure
Top of Shaftwall
3510mm above L4 FFL
Code 5 lead flashing
Top of Beam
+26.210
+26.490
Code 5 lead flashing
25
dpc
cavity tray
weepholes
Top of Roof
+26.320
W5
05
Top of Coping
+26.565
150
cavity tray
weepholes
Top of Steel c4
+26.280
50
237
236
235
234
233
232
231
230
229
228 air
227
226
Insect mesh to perimeter
eaves openings
50
241
240
239
238
Code 5 Lead Flashing at top of lift
overun roof, dressed in under coping.
Mastic sealant cover.
Top of Coping
+26.565
280
Horiz Sect A
clear to low point of interior dimension
W5
05
Note to joists, rafters. Tek screw
through hangers as fixing to
steelwork where required
310
Lift Shaft
241
240
239
238
237
236
235
234
233
232
231
230
229
228
227
226
225
224
223
222
221
220
219
218
217
216
215
214
213
212
211
210
209
208
207
206
205
Type F reconstituted
stone copings
cavity tray
weepholes
B
16.04.14
pm
A
14.04.14
pm
Rev.No.
Date
By
Crossbeams highlighted as bubbled, B&B
Structures information added
Comments added. Cavity tray/weephole
notes. Issued for Construction
WELDON WALSHE
ARCHITECTURE . INTERIOR DESIGN . HISTORIC BUILDING CONSERVATION
20 GROSVENOR PLACE LONDON SW1X 7HN t:0044 207 235 4100 f:0044 207 235 6678
17 Cadogan Place
London SW1X 9SA
Rear Wing Roof and Lift
Overrun
DISCHARGE OF
PLANNING CONDITIONS
scale:
1:20@a1, 1:40@A3
date:
07/04/14
dwg no:
0
3
4
5M
Amendment
drawn by: pm
rev:
1179 537
B