Timber I-Joist

A 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.

A 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.


Planning a visit?
You will find this material in: Cabinet B

Geographic availability
Europe
Origin / Location of manufacturing / Processing plant
Forres, Scotland
Application and typical uses of the product

Typical applications for timber I-joists are in floors, roof framing (rafters and purlins), wall framing (studs) and whole structural portal frames and roofs including flat and pitched

Breakdown of Product

100% timber (softwood flanges with OSB connector)

Embodied energy (Processing plant emissions). How much energy is used to produce the product? kWh per annum or kgCO2
9.645 MJ/kg (cradle to gate)
Thermal conductivity (k) W/m°C or Thermal transmittance (U-value) - W/m2°C (If applicable)
0.13 W/mC
Is the resource Renewable or Finite?
renewable
Does the material need to be processed further or treated by the user
No
Buildability - how complex is installation? What skill level is required?
JJI-Joists can be installed and cut using a number of standard tools, fixings and metalwork connectors on-site. Once installed, if the structure will not be weather tight for a prolonged period of time, the JJI-Joists should be protected from the weather to avoid excessive changes in moisture content, and associated dimensional changes
Types, textures, specifications and colours currently available
Joists come in a wide range of sizes. Flanges range from 47mm - 97mm and depth ranges from 195mm - 450mm
Supplier Name
James Jones and Sons Limited
Main Contact
Stephen Stewart
Contact Address
Timber Systems Division Greshop Industrial Estate Forres
 IV36 2GW
Telephone Number
01309 696130
Email
s.stewart@jamesjones.co.uk
Is this product certified?

Yes