1. J&P Building Systems Ltd
Introduction

2. With an extensive range of products
for many of today’s modern
construction requirements, J & P
Building Systems have developed
a reputation for providing safe,
smart solutions.
Supplying standard off-the-shelf
products and bespoke designed
solutions, J&P work closely with our
parent companies to provide cost-
effective, high quality and reliable
products to benefit the construction
industry.
Alongside our range of products we also have an experienced team providing
design guidance, technical support, sales and pricing assistance – to ensure our
customers are supplied the most suitable value-engineered products and
solutions for their projects.
J&P Building Systems

3. J&P Parent Partnership Companies
J&P Building Systems is the supply partner in the UK
for our parent companies

4. Balcon connectors
for steel balconies

5. Steel balconies are a common
feature of apartments

6. They are normally fixed to the face
of the insitu concrete floor slab

7. Until recently, proprietary fixing
systems were always used

8. Typical proprietary balcony fixing inserts

9. Apart from cost, the big drawback
with these systems is tolerance
-or lack of it

10. Extract from proprietary technical literature

11. The lack of tolerance means that surveys
and retro-drilling is usually required

12. Threaded rods
projecting from
slab edge

13. Threaded
sockets cast
into slab edge

15. Balcon
channel
inserts

16. Cast-in channel has always been
known to offer high tolerance

17. Invented by Anders Jordahl in 1913, it has a proven track
record of safety and provision of high tolerance.

18. In particular, channel allows considerable errors in casting to be
overcome with no remedial work required.

19. Ideal position for channel and balcony plate

20. Channel to one side - plate remains in correct position

21. Channel too high - plate remains in correct position

22. Channel rotated - plate remains in correct position

23. Balcon system
The channels are
cast-in, with bars
welded-on.
The stub and
back plate
normally form part
of the balcony
package

24. How does it work?

25. How does it work?
Shear is taken by
the vertical
toothed channels

26. How does it work?
Moment is taken
by tension in the
top channel and
compression
against the
vertical channels

27. Thermal performance
The stub beam
can be encased
in a block of
insulation.
The thickness of
insulation is not
‘fixed’ as with the
proprietary
systems.

28. Thermal performance
The Balcon
system has been
thermally
assessed by
BBA.

29. Thermal performance
The results showed that
Balcon was thermally
superior to existing
proprietary systems.

30. Thermal performance
Importantly, the analysis showed that the performance meet the
criteria for minimising the risk of internal surface condensation.

31. Durability
The channels and bolts have a hot-dipped galvanized finish. The
minimum thickness of galvanizing is 50μm (microns).
The Galvanizers Association publish guidance based on BS EN
ISO 14713:2009
This indicates a coating life expectancy of at least 70 years.

32. Practical details
BBC Media City

33. Practical details
BBC Media City

34. Practical details
BBC Media City

35. Practical details
Clancy Barracks, Dublin

36. Balcon Case studies
Woodberry Down

37. Balcon Case studies
BBC Media City
Media City

38. Balcon Case studies
The Rock, Bury

39. Balcon Case studies
Clancy Barracks, Dublin

40. Balcon Case studies
Beaufort Park, Hendon

41. Balcon Case studies
Kew Bridge Road, Brentford

42. Balcon Case studies
Finzels Reach, Bristol
Finzels Reach, Bristol

43. Balcon Case studies
Finzels Reach, Bristol
Finzels Reach, Bristol

44. Balcon Case studies
Olympic Athletes Village (3 sites)

45. In addition:
Cast-in channels are remarkably tolerant of mis-use and
abuse, as these examples show.

46. Channel not
secured before
casting has
sunk below the
surface of the
concrete.
Concrete is
highly
honeycombed
Used after load
testing.

47. After this channel
was missed out, the
Contractor cut a
chase in the column
and ‘fixed’ a channel
with resin.
Rejected!

48. After this channel was mis-
positioned, the Contractor
added another, with resin.
Rejected!

49. The missing concrete was
replaced with grout.
Used after load testing.

50. This group was severely mis-
aligned, and the lower
surface was set back.
After load testing, this was
used as designed with a
modified end plate to the
beam.

51. Inappropriate use of an
oxyacetylene burner damaged
the galvanizing. Concrete was
blown off by the extreme heat.
After making-good, and load
testing, this was used as
designed.
Load = 70 kNm + 100 kN

52. J&P Building Systems Ltd
Thame Forty Jane Morbey Road
Thame Oxon OX9 3RR
T: +44 (0)1844 215 200 F: +44 (0)1844 263 257
E: enquiries@jp-uk.com
W: jp-uk.com
GENERAL

53. - THANK YOU -