David Smith is an authorized distributor
of James Jones & Sons’ JJI-Joists.
Established in 1905, James Jones & Sons Ltd
is committed to excellence in customer service,
quality products, superior engineering,
and prompt delivery.
The JJI-Joist is a structurally engineered
timber joist, combining high-grade softwood
with an engineered composite panel. Using
advanced technology these components are
combined to produce an innovative alternative
to conventional construction timber. They are
produced on the first purpose-made I-joist
production line in the UK, custom built to
produce JJI-Joists to UK preferred dimensions.
BJ-Beam, is a high specification engineered
Glulam beam fabricated by bonding together
stress graded planed timber laminations, with
their grain in the longitudinal direction of the
member. This
forms a structural
unit of great
strength and
dimensional
stability to
compliment the JJI-Joist for high load and rim
beam applications.
The JJ-IntelliRoof™ is a fully engineered panelised solution for fast onsite erection of a
fully decked, insulated, watertight, braced JJIJoist
Room in Roof. The system is independent
of the building construction method and can be
used with traditional masonry construction or
timber frame with equal ease.
JJI-Joists are available in a range of sizes
familiar to the UK Construction Industry
with joist depths ranging from 145mm to
450mm. JJI-Joists are constructed from
9mm OSB web and C24 softwood flanges
ranging from 45mm to 97mm in width.
Due to the unique form of the JJI-Joist British Board of Agrément Approval, it is
possible to design and produce large
volumes of non-standard JJI joists to allow
for particular span and depth situations that
cannot be covered by the standard range
The 220 JJI joist also provides a more
cost-effective way of complying with Part E
(sound) of the Building Regulations for
intermediate floors, as no insulation is
required when it is installed at 400mm
centres and above.
Whatever size company you are part of, be
it a large main contracting company or a
sole trader, the new Part L Building Regs
affect you. Since air leakage is a major
cause of failure to comply, the Cullen
Gripper is a useful tool in the battle to
ensure compliance. The Cullen Gripper is
an easier to use option than masonry
hangers. Designed for use in conjunction
with the JJI joist, the Cullen Gripper
provides an airtight seal at joist end, and
can be used on both external & party walls. |
