Alternative Claddings

JANUARY 2012
Alternative
Claddings
News from the Editor
January 2012
IBSTOCK DESIGN MAGAZINE
Published by:
Ibstock Brick Ltd, Ibstock, Leicestershire, LE67 6HS
Editor: Anne Grose
Tel: 01530 261999 Email: [email protected]
Front Cover: University West of England, Bristol
designed by www.ashcroftcreative.com
RIBA & University News
In October 2011
Ibstock was an
Associate sponsor of
the Stirling Awards
and it has been busy
in the Regional awards
with sponsored Award
evenings on:-
• East Midlands Awards 22nd September
• North Network Awards 4th November - this was
a new award for the North combining the White
Rose (25th year of sponsoring), Hadrian Awards
and for the first time North West Awards.
• Downland Prize 15th November.
• Town & Country 22nd November.
• Study tours have also taken place: Birmingham City
University went to New York, Northumbria University
went to Paris, Lincoln University went to Rome and
Oxford Brookes went to a selection of countries,
Denmark, Sweden, Germany and Belgium.
To be added to the mailing list for Design,
please email [email protected]
why not follow us on:
2
Exclusives Brochure
Ibstock Exclusives brings you
some of the most exciting
bricks you will find anywhere.
The range consists of carefully
Contents
selected bricks with unique
News
2
colours and textures to help
University West of England, Bristol
4
make any building extra special.
King Street, Ayr/Paper Mill Lock, St Neots
Poole Grammar School
La Alhóndiga, Bilbao
Oak Farm Extension, Allerton, Liverpool
Products in Focus - Fireborn®
BDA Awards 2011
Back to Basics - Underslung Soffit Brickwork
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The range consists of Woodland Shades,
which feature a combination of colours
from nature, while the Modern Hues are
precisely formed bricks with strong and
dynamic mineral colour tones and finally
Running Waters which are bricks with
bold shading and a soft sheen creating
a unique vibrancy.
To see the latest ideas in sustainable brickwork
visit our stand N111O at Ecobuild 20th to 22nd
March at Excel, London. To register for your free
tickets go to www.ibstock.com/ecobuild
Nutley Brown Multi Stock 0740
The Nutley Brown Multi Stock from West
Hoathly is a traditional clamp-fired stock
exhibiting a unique range of colour. Shades of
brown are highlighted with distinctive spotting,
characteristic of other popular West Hoathly
products and not present on many of the stock
bricks manufactured in more modern factories.
This brick extends the available colours not only
at West Hoathly but also of the wider Ibstock
stock brick range.
You can order a Product Information
Card or sample at www.ibstock.com
or call the Sample & Literature
Hotline on 0844 800 4578.
How often are we reminded about the consequences of our actions on
the environment around us?
Once a day? Twice a day? How many of us have bought a “bag for life?”
Environmental issues are as much of a concern for the construction industry. Ibstock has
been promoting the benefits of using brick over other building materials for many years.
However, in light of the additional pressures that contractors and architects are facing
when it comes to selecting environmental friendly materials, the Company thought it
could make life much easier for them.
A new Sustainable Product Guide
has been launched which highlights
key features of brick, but also focuses
on a selection of products that have
even greater environmentally friendly
benefits than other building materials.
This brochure looks at these products
in detail, highlighting key features
and benefits and providing technical
information.
It is a vital piece of literature for those
that are keen to use products that
are as environmentally friendly and
as sustainable as possible.
Ecobuild 2012
New Product
Introducing the Sustainable Product Guide
For your copy of the
Exclusives brochure please
call the Literature hotline
on 0844 800 4578 or go
to www.ibstock.com
For your copy
call the Literature
Hotline on
0844 800 4578.
FAQ - ARCH CONSTRUCTION
Our series continues with Andrea Cooley
who has been part of the Ibstock Design
Advisor team for 10 years.
“I am often asked about the different
methods that can be used to construct arches.
The arch was originally designed to transfer
loads above openings in walls to the abutments
on each side. Brickwork is strong in compression
but weak in tension and since arches are
designed to resist compressive forces, brick is
an excellent material for arch construction. In
modern construction, most arches are built
into the outer leaf of cavity walls and are ‘selfsupporting’. However, there is still a requirement
for arches to be ‘structural’, supporting roof,
floor and wall loads.
Arch sets can be provided by Ibstock in
a number of different ways. Loose arch sets
were the traditional method of arch supply
and construction. They are still preferred by
some heritage bodies and contractors - they
are supplied as individual voussoirs and can
be designed to suit any span. Loose arches
can be self-supporting, but tend to be used in
conjunction with steel lintels in most situations.
Brick slip voussoirs prefabricated onto
a lightweight backing allow quick and simple
arch construction. The backing can either be
a medium density concrete block in units of
less than 20kg, or using the Hyperlite backing
material for an even lighter module. Both
methods utilise brick slip voussoirs bonded to
the face and site pointed before being lifted
into position on a proprietary steel lintel.
There has been an increase in demand for
arches that are faced on soffit; therefore
a proprietary steel lintel cannot be used as
the flange would be visible. Ibstock can supply
structural arches in these cases, in one piece,
removing the need for steel lintels. Brick slip
voussoirs are bonded to concrete backing units
or alternatively a concrete backing is cast
on the rear face of the brick slips, forming
a mechanical key between the two materials.
If less weight is required for a structural arch,
a stainless steel backing can be used instead of
concrete - options for support to the outer leaf
only, or combined support to both inner and
outer skins are available”.
3
University West of
England, Bristol
Stride Treglown has designed
a new academic facility for the
Faculty of Environment and
Technology at the University of
West of England. The BREEAM
‘Excellent’ rated design consists of
2,700 sq. m of teaching and office
accommodation, informal learning
spaces, a café, conference rooms
and social spaces.
Architect: Stride Treglown Ltd
Contractor: Willmott Dixon
Rainscreen Cladding: Elementix® eco-freedom
Elementix® gallery
The design employs a number of innovative
technologies and materials to deliver a new
environmentally sustainable building which can
be used as a teaching tool and an example for the
architecture and design students who will use it.
The scheme is also a prototype for a new form of
development principle at UWE, providing flexible
teaching and social space which informed thinking
for the development of the campus master plan,
also being carried out by Stride Treglown.
The environmental strategy was one of the key
driving forces behind the development. High levels
of natural daylight are provided via large areas of
solar-controlled glazing, external solar shading louvres
on the south elevation further reduce solar gain.
Highly sustainable materials have been specified
including a new prefabricated straw bale cladding
panel (ModCell) with a high thermal and acoustic
performance. Furthermore a new rain screen cladding
tile - developed especially for the building - was
used. The tile achieves a 94.7% recycled material
content using slate and clay dust from the Ibstock
Chesterton factory in Staffordshire. To complement
the Elementix® Natural Blue, two additional colours
were created to produce a mottled effect across
the façade.
At the briefing stage the University set a target for
WRAP (Waste & Resources Action Programme) noting
that at least 10% of the total value of materials used
should derive from recycled and reused content in
the products and materials selected. A bio-fuel boiler
(using recycled chip fat from the University campus)
and rainwater harvesting have been incorporated too.
4
5
King Street, Ayr
Paper Mill Lock, St Neots
Architect: South Ayrshire Council
Contractor: Chemcem Scotland
Brick Type: Fastwall - Albany Cream, Chesterton Multi Red Smooth, Staffordshire Blue Brindle Smooth
Architect/Contractor: Taylor Wimpey, East Anglia
Brick Type: Fastwall - Ivanhoe Athena Blend and Leicester Multi Yellow
Fastwall gallery
The purpose of the scheme was
to provide the public, and in
particular the elderly, parents/
carers with young children,
school children and those with
disabilities, with a safer and more
user friendly route for crossing
the busy A719 dual carriageway
in the centre of Ayr.
The refurbishment scheme for the
underpass included new patterned
brickwork wall cladding, new metal
parapets and handrails, replacement
lighting, anti-slip treatment to walking
surfaces, drainage improvements,
polished stainless steel mirrors to improve
visibility at dog-legs and the installation
of covert and external CCTV cameras.
The scheme utilised the Fastwall system
which is an innovative weather resistant
way to clad, infill, or build a wall with
real brick slips at incredible speed and
efficiency. The system uses a series of
interlocking panels which are fixed back
to the substrate and pointed on site.
Fastwall can be supplied in virtually
any brick type to replicate traditional
brickwork perfectly. It was used to
create the patterned wall cladding in
the underpass.
“
... a safer and more user
friendly route for crossing the
busy A719 dual carriageway
in the centre of Ayr.
”
The location was a former industrial site extending to approximately
9 hectares in total, situated on land to the west of Mill Lane, Little
Paxton. The northern portion of the site is largely undeveloped and
will provide a multi-use community hall and sports pitch.
Planning permission for the erection of 426 mixed residential units
along with public house and community hall with ancillary parking
was granted back in 2003.
The range of dwellings across the site vary from 1 & 2 bedroom apartments
and coach houses to 3 & 4 bedroom town houses. A selection of differing
storey heights has been incorporated into the development, with three storey
town houses and two to four storey apartment blocks. Of the 426 dwellings,
163 will be houses and the remaining 263 will be apartments with 302
providing open market dwellings whilst 124 have been allocated as affordable
housing, which will consist of rented and shared ownership tenures.
SECTION A - A
6
SOUTH UNDERPASS ENTRANCE
TYPICAL PROPOSED CROSS SECTION THROUGH
APPROACH RAMP
The Fastwall system of brick slips was used to construct the balconies on the
new dwellings as it provided a lightweight yet durable solution in a facing brick
to match the existing brickwork.
7
Poole Grammar School
Ref 6.3.0
Ref 3.2.0
Architect: Terence O’Rourke
Contractor: Rok Build
Brick Type: Brunswick Farmhouse Mixture
Ref 6.3.2
Terence O’Rourke was appointed by the Borough
of Poole to improve the school’s current facilities
and assist in the authority’s move from a three tier
to two tier system.
Ref 6.3.0 Pistol
With the existing buildings surrounded in close proximity by the
school playing fields, limited space was available for expansion and
so a small site at the front of the school was selected for the new
Performing Arts block. The prominent position of the new building
presented the opportunity to provide a new face to the school’s
existing 1960’s buildings.
Ref 3.2.0 Pistol
Column Detail 01
Ibstock Detail 1
Ref 6.3.0
01
Ref 6.0.0
Ref 3.0.0
100mm thermal insulation (F30/156)
plasterboard ceiling on MF framing (K10/227)
Ref 3.0.0
Ref 3.2.0
cavity wall tie with insulation retaining disc (F30/212)
Ref 6.0.0
140mm blockwork (F10/355)
Ref 6.0.0
clay facing brick slips bonded to 75mm blockwork (F10/112)
cavity tray (F30/345)
Ref 6.3.2
steel angle lintel (F30/223)
Ref 6.0.0
PPC aluminium head f lashing (L10/401)
steel box lintel (F30/223)
Ref 6.0.0 Pistol
softwood batten (G20/270)
galvanised steel f ixing strap (L10/401)
timber packer (L10/401)
line of steel column to SE's details
composite aluminium / timber window system (L10/401)
clay facing brick slips bonded to 75mm blockwork (F10/112)
softwood window sill board (P20/115)
“
Movement Joint
To avoid monotony on the
elevations the same brick has
been laid in different ways to
provide a subtle difference in
aesthetics and texture.
”
The design provides a new three-storey performing arts wing comprising a music
department, a performing arts hall and a learning resource centre. This wing sits
Ref 6.3.0 Pistol
alongside, and is linked, to the new main entrance and reception area that has Ref
been
3.2.0 Pistol
integrated into the existing school.
Ref 6.0.0
Ref 3.3.0
Ref 6.3.0
During the planning process the Local Authority was insistent that these areas should
Ibstock Detail 1
be clad in a red brick to allow the building to sit comfortably next to its 1960’s
counterparts. To avoid monotony on the elevations
the same brick has been laid in
Ref 6.3.0
Ref 6.0.0
different ways to provide a subtle difference in aesthetics and texture. A stacked soldier
Ref 3.0.0
coursing has been used at high level where it can be viewed from a distance, but where
the building meets the ground on the principleRef
elevation
the design uses a familiar
Ref 3.0.0
3.2.0
stretcher course, as used everywhere else around the school.
01
Ref 6.0.0
insulated cavity closer (F30/185)
galvanised steel f ixing strap (L10/401)
softwood skirting (P20/110)
min 150
line of PPC aluminium cill (L10/401)
levelling screed (M10/130)
50mm thermal insulation (P10/141)
softwood ground (G20/270)
25mm thermal insulation (P10/14-)
140mm blockwork (F10/355)
cavity wall tie with insulation retaining disc (F30/212)
DPC (F30/330)
88
Ref 6.0.0
The window bands create shadow gaps between the brick areas, further accentuating
the different areas of the building. Where openings
penetrate a clean face of brickwork,
Ref 6.3.2
the proportions of the windows have then been adjusted to suit the brick coursing
Ref 6.0.0
with vertical windows within the soldier course and horizontal windows in the stretcher
coursed brick.
Ref 6.0.0 Pistol
With a limited budget, the cost of traditionally stacked soldier course was prohibitive
Movement Joint
and so the solution was Ibstock Brickwork Components where a brick slip is adhered
Ref 6.0.0
to a backing block. With 6 brick slips per block and a series of specials for the corners, Ref 3.3.0
Ref 6.3.0
Pistol without the use of bed joint
these areas of brickwork could be constructed
quickly
Ref
3.2.0
Pistol
reinforcement at every course. The ability to lay 6 bricks at once had a dramatic effect Ref 6.3.0
on the speed and efficiency of construction. This allowed the additional costs of the
blocks to be offset against the cost savings in programme, whilst retaining a quality
1
Ibstock
Detail 2
that would have been hard to matchIbstock
withDetail
traditional
methods as the components
are
factory made.
01
02
Face Detail 02
Ibstock Detail 2
02
Ibs
Ref 6.3.0
Ref 6.0.0
Ref 3.3.0
Ref 6.0.0
Ref 6.3.0
Ref 6.0.0
Ref 3.0.0
Ref 6.0.0
Corner Detail 03
Ibstock Corner Detail 3
03
9
La Alhóndiga, Bilbao
Architect: Phillipe Stark, Paris
Contractor: Alameda Urquijo Urkixo
Brick Type: Handformed bricks - Buggenham,
Holland. Prefabricated elements - Albert, Germany
The refurbishment of La Alhóndiga
in Bilbao has transformed a former
warehouse into a 68,000m² cultural
and leisure centre.
The facade of the historic building, which was formerly
used to store local wine and spirits, was preserved.
Strips of floor 4 metres and 11 metres wide, adjacent
to the facade, were also retained. The interior has
been demolished to create space for the new facilities
to be housed within the shell of the original building.
The new centre includes a swimming pool with
a terrace, library, cinemas, exhibition hall, retail,
leisure space and an underground parking garage.
The main challenge for the designers was to unite the
existing façade and floor strips with three new inner
buildings and two basements.
Delivery of panels
Installation on site
The revitalisation of the historic building is an urban
regeneration initiative led by French architect and star
designer Philippe Starck, who designed the private
chambers of the then president François Mitterrand in
the Élysée Palace in 1982. One of the most important
contributors alongside Starck and his team is the brick
manufacturer and supplier CRH Clay Solutions.
For this project, Starck has applied construction criteria
based on efficiency and sustainability; he has chosen
materials such as concrete, exposed brick and glass
and has introduced solar panels to the roof.
10
He has thus managed to humanise the building while
always maintaining its architectural singularity, and has
transformed it into a new landmark for Bilbao’s daily life.
The last phase of the project began in December
2005: it is the construction of three buildings versatile 7 storeys (2 levels half buried, a ground floor
and 4 upper floors) as well as a vast atrium open on
the ground floor. The internal walls and new top floor
have all been constructed using pre-fabricated panels.
“
The interior has been
demolished to create space
for the new facilities to be
housed within the shell of
the original building.
”
11
Oak Farm Extension, Allerton, Liverpool
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Architect: shedkm Architects
Contractor: P & V Wild
Brick Type: Fireborn® Freedom Natural Blue Linear Range (440 x 50mm – Quarter Bond)
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Linear gallery
27
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Oak Farm (the house that shedkm had designed for Jon & Nicole
Falkingham) needed extending. The original farm house had its
modern addition, but more space was required - a study,
a small apartment and a guest bedroom.
There were many discussions with the
Liverpool Planning Authority and a dark
brick was agreed as a neutral backdrop
to the local sandstone used elsewhere.
Internally the building has a smaller scale
than its big sister, but retains the same
aesthetic - white walls, some bright
yellow (the library) and high quality
natural woodwork.
30
28
27
27
ROOF DETAIL
On the approach road, the building
stands clear overlooking a small lake,
but the glass link is soon revealed with
a storey height door serving as the
main way in to the main house.
This is a modest but surefooted design precise and clear.
“
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LINEAR DETAIL
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1
FOOTING DETAIL
12
The original farm house had
its modern addition, but
more space was required...
”
1. concrete binding
1. concrete binding
2. RIW sheetseal 226 laid on concrete binding
2. RIW sheetseal 226 laid on concrete binding
concrete slab
binding
1. concrete
to engineer's details
3.
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5.
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4.
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6.
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7.
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7.
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440 x 102.5
x 50 linear brick, 6mm recessed joints.
13. ibstock
13. ibstock brick 440 x 102.5 x 50 linear brick, 6mm recessed joints.
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12.
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11.
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14. 100mm
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13.
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12.
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wall
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brick,
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joints.
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steel
glazingx clamp
fordeck
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balustrade
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17.
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pole
28.
glazing plasterboard,
barcurtain
fixed 200
x 50&joist
running
perpendicular
main roof joists
27. 15mm
30.
skim
paint,
counter
batons for plasterboard
ceiling
30. 15mm plasterboard, skim & paint, counter batons forunderfloor
plasterboardheating
ceiling
6.
22mm
finishes
zone
for
junker’s
solid
200x
rhs timber
lintel
with
10mm
steel
plate welded
29.
underneathsee engineers details
recess
fors/w
curtain
pole
28. 200
31.
x100
50
joists
at 400
centressee engineer's
details
31. oak
200 floor
x 50 s/w timber joists at 400 centres- see 26.
engineer's
1plasterboard
5mmdetails
engineered
oak floor
30.
plasterboard,
skim10mm
&
paint,
counter
ceiling
200x 100
rhs lintel
with
steel
plate
29. 15mm
welded for
underneathengineers details
32.
timber
furrings
to achieve
1/60
falls
in
roofbatons
glued to see
screed
board
32.
timber furrings
to achieve
1/60 falls in roof
7. celotex
perimeter
insulation
31.
200
x 50
s/w timber
joists&
at
400counter
centressee
engineer's
details ceiling
30. 15mm
plasterboard,
paint,
for0.20
plasterboard
33.
celotex
TD3000
flatskim
roof
insulation
deck tobatons
achieve
U-value
33.
celotex TD3000
flat wall
roof to
insulation
deck to
to achieve
U-value
27. 0.20
glazing
bar fixed 200 x 50 joist
8. 100mm
blockwork
fix falls
glazing
32.
furrings
to achieve
in roof see engineer's details
31. timber
200
x 50
s/w timber
joists1/60
at 400
centres34.
mastic
asphalt
roof
membrane
running perpendicular to main
34.
mastic fill
asphalt roof membrane
9. cavity
33.
celotexfinish
TD3000
flat
roof insulation
to achieve 0.20 U-value
32. timber
furrings
achieve
1/60 falls deck
in roof
35.
ballast
to to
roof
roof joists
35. ballast finish to roof
10.RIW
flexiseal
waterproof
membrane
34.
mastic
roof
33.
celotexasphalt
TD3000
flatmembrane
roof insulation deck to achieve
U-value
36. parapet
28. 0.20
recess
for curtain pole
36. parapet
11. 1ballast
00mm
blockwork
below ground level
35.
finish
toroof
roofmembrane
34. fillet
mastic
asphalt
37.
upstands
29. 200 x 100 rhs lintel with 10mm
37. fillet upstands
12. Rformed
IW double
drain
tanking membrane
36.
parapet
35.
ballast
finish
to
roof
38.
aluminium
coping
steel
plate
welded underneath
38. formed aluminium coping
13. Ibstock
brick 440 x 102.5 x 50 linear
37.
fillet
upstands
- see engineers details
36.
parapet
brick,
6mm
recessed
formed
aluminium
copingjoints
fillet upstands
14. cformed
oping aluminium
formed over
dwarf wall
coping
under deck
15. 200 x 100 rhs with welded tabs
1
16. 10mm painted steel glazing clamp1
for
19mm toughened glass balustrade1
17. 22mm floor finish zone over u/f
heating system & ply working deck1
18. acoustic insulation, timber floor joists
19. 15mm plasterboard, skim and paint
20. counter batons for plasterboard
ceiling
38.
37.
38.
30. 15mm plasterboard, skim & paint,
counter batons for plasterboard ceiling
31. 200 x 50 s/w timber joists at 400
centres - see engineer’s details
1
1 timber furrings to achieve 1/60 falls
32.
1 in roof
33. celotex TD3000 flat roof insulation
1 deck to achieve 0.20 U-value
34. mastic asphalt roof membrane
35. ballast finish to roof
36. parapet
37. fillet upstands
38. formed aluminium coping
13
Products in focus - Fireborn®
In the first of an occasional series of articles, Andrew
Batterham Ibstock’s Design and Innovation Manager
muses on the different design options created by
using different sizes of clay blocks and bricks...
Fireborn® gallery
For most of us, whether involved in construction or
not when we talk about a brick we have a clear picture
in our minds about its size, shape and even weight.
In Britain up to the 1960’s as there still is today in
Europe, there are a wide variety of sizes but all roughly
based around the natural span of a man’s hand something that could be easily and repeatedly lifted.
The origin of the face size itself is often thought to
be derived from the rather mystical concept of the
‘Golden Ratio’.
Anyway whatever the truth about the origins of today’s
bricks, in Britain 215mm x 65mm by 102mm makes up
almost 99% of all bricks sold and is so familiar to us all.
It is this familiarity that means that brick is sometimes
taken for granted and gives it almost a domestic quality
in the minds of some designers. Brick can give a scale
reducing effect to large buildings.
Fireborn® range | standard colours and texture
Featuring natural fired clay colour tones.
Fireborn® Black NEW Fireborn® Ochre
Fireborn® Natural
Cream Lined
Fireborn® Natural Blue
Fireborn® Natural
Blue Riven
Fireborn® Natural
Blue Lined
National Trust Headquarters, Swindon | Fireborn® Natural Blue and Staffordshire Slate Blue Smooth
Fireborn® Natural
Brown NEW
Fireborn® Natural
Cream Riven
Fireborn® Natural
Red Lined
size
Fireborn® | standard blocks
Code: BB
Code: BF
140mm
215mm
215mm
Fireborn® Natural Red
Fireborn® Natural
Grey Riven
215mm
327mm
102mm
102mm
Fireborn® Ochre Lined
327mm
102mm
Office Development, Leatherhead, Surrey
Fireborn® Natural Cream
Fireborn® | freedom
Apartments, Watford, Hertfordshire | Fireborn® Natural Red
to 290mm
However back in 2003 Ibstock introduced Fireborn ,
a large format clay facade block and a first for UK brick
manufacturing to produce blocks of such size and make
them in volume - bringing a new creative and cost
effective option to specifiers especially where the size
and scale of the building demands a strong statement
to be made. This is not just an effect from the larger size
of the units but also from the emphasis given to them
by the reticulation of the mortar joints and their reduced
number. This is surprisingly significant as in ‘standard’
brickwork mortar accounts for 17% of the visual area.
With Fireborn this can be significantly reduced to as
little as 10% and a corresponding increase in the visual
impact of the clay!
to 215mm
to 290mm
to 190mm
from
50mm
to 215mm
to 290mm
from 50mm
from 50mm
to 190mm
®
®
14
to 290mm
from 50mm
215mm
from 50mm
Fireborn Natural Grey
®
Fireborn Natural
Cream Textured
®
215mm
from 50mm 440mm
102mm
102mm
440mm
Fireborn® | max
215mm
from 50mm
from 50mm 327mm
102mm
102mm
327mm
190mm
102mm
Code: BK
490mm
102mm
440mm
A range of vibrant glazed colours is also available.
102mm
102mm
190mm
440mm
Fireborn® Natural
Red Textured
490mm
Fireborn® | max II
Code: BH
215mm
Fireborn® Natural Cream
490mm
102mm
102mm
490mm
102mm
Special shaped bricks are available to simplify construction.
102mm
Private House, Liverpool
Fireborn® Freedom Natural Blue
15
Project 1: Bluebell Camphill Phase 2, Nuneaton
Product: Arden Red, Arden Weathered Red,
Marlborough Stock
Project 3: Clover Mead, Phase 1, Telford
Product: Priory Weathered Red
Project 2: Montreal House, Canada Water, Southwark, London SE16
Product: Rotherhithe Blend (Atlas Smooth Red, Staffordshire Smooth,
Staffordshire Slate Blue Smooth)
Supreme Winner, Best Public Building & Specialist Brickwork Sub-Contractor (Gilbert Ash NI Ltd)
Lyric Theatre, Belfast | Product: Heritage Red Blend
Best Housing Development 1-5 Units
31-32 Dolben Street, London, SE1 | Product: Copper Glazed Bricks
Best Craftsmanship
Ordnance Survey HQ, Southampton
Product: Priory Red
Project 1: Lyric Theatre, Belfast
Product: Heritage Red Blend
16
Best Housing Development 6-25 Units
Best Refurbishment & Renovation
Bermondsey Island, Tower Bridge Road, London SE3 Product: Tilebrick™ Smooth Blue
Newton & Arkwright Buildings, Nottingham Trent University
Product: Smooth Cream Tap Brick
Best Housing Development 26+ Units
Union Phase Black B, Devas Street, London E3 | Products: a) Bow Blend: Milburn Ashen Grey Brown,
Smooth Buff b) Bromley Blend: Milburn Ashen Grey Brown, Smooth Buff, Cheddar Brown
Project 2: Pilot Apartments,Belfast Product: Deva Red
BDA Awards 2011 - Winning Projects
BDA Awards 2011 - Winning Projects
Volume Housebuilder | Winner: Barratts
Project 3: Victoria Square Development, Belfast Product: Birtley Olde English
Specialist Brickwork Contractor | Winner: Gilbert Ash NI Ltd
17
Back to Basics
Underslung Soffit Brickwork
In today’s modern brickwork designs architects often want to omit
the unsightly shelf angles in preference for the continuity of a long
length of brick faced soffits, sometimes even providing a brick faced
soffit to a considerable depth well beyond the thickness of the half
brick thick wall above.
The challenge...
T16 LIFTING SOCKETS
(INCLUDING EYES)
Until 5 years ago the primary method would have been
to use loops of steel bars secured to short lengths of
shelf angles, build up a timber formwork to the soffit
level, place the soffit bricks on the formwork and push
reinforcing bars through holes in the bricks having
previously buttered the vertical face of the bricks with
mortar to joint them together. The horizontal bars can
be fitted through the perforations in the brick providing
it is for a line of soldiers or brick on edge headers as
the base course and provided extruded bricks are used
with three perforations in them. But if you wish to have
your soffit base course as stretchers, Flemish bond or
your preference is for stock, handmade, waterstruck
bricks or extruded with 10 perforation holes or
more how do you get the horizontal reinforcing bars
through? Drilling holes in the bricks can be costly if not
impossible for some brick types not to mention that
drilling multi perforation bricks can just break apart
during the operation. The easier way is to have the
holes drilled before the bricks are fired adding cost
and time to the process.
ALL JOINTS TO BE
10mm DEEP FOR POINTING
JORDAHL CHANNEL
JTA K 38/17-200
JORDAHL CHANNEL
JTA K 38/17-200
25mm RECESS
TO ACCEPT BRICK SLIP;
TO BE BONDED ON SITE.
Bear Lane, London
25mm RECESS
TO ACCEPT BRICK SLIP;
TO BE BONDED ON SITE.
So how has Ibstock Kevington improved
upon this process?
T16 LIFTING SOCKETS
(INCLUDING EYES)
ALL JOINTS TO BE
10mm DEEP FOR POINTING
JORDAHL CHANNEL
JTA K 38/17-200
JORDAHL CHANNEL
JTA K 38/17-200
JORDAHL CHANNEL
JTA K 38/17-200
25mm RECESS
TO ACCEPT BRICK SLIP;
TO BE BONDED ON SITE.
The individual units are lifted into place on the
underside of the shelf angles which have slotted holes
to receive the T-bolts set into the dovetail channel.
The slots allow the precast units to be finely adjusted
to align along the face of the building. Once the bolts
have been tightened laying the pistol bricks on top of
the shelf angle can commence immediately thereafter.
25mm RECESS
TO ACCEPT BRICK SLIP;
TO BE BONDED ON SITE.
18
Ibstock Kevington manufactures lengths of brickwork
about 890mm (four bricks) long. Longer or shorter
lengths are made to suit project requirements. The
backs have been cut off leaving a positive key for
concrete which is reinforced and has a dovetailed
stainless channel set along the top, as shown in the
typical detail drawing adjacent along with two lifting
eye sockets. Casting the concrete on the back of
the keyed bricks ensures a positive bond to create
a homogeneous unit. The concrete is stopped back
from the face of the brickwork to allow for site mortar
pointing
ensuring
JORDAHL
CHANNEL a match with the surrounding
JTA K 38/17-200
brickwork.
For more information contact one of the Ibstock
Design Advisors on 0844 800 4576.
Speed and ease of construction is far in advance of
the previous methods and is the contractors’ choice
for simplicity. The bricks used for the units are all
taken from the same batch as those sent to the
site ensuring uniformity of appearance. The Ibstock
Kevington Manchester factory has BBA Certification
for its precasting.
19