26 February 2010
Fourth Edition Technical Manual
James Jones & Sons Ltd. – Timber Systems Division, are delighted to announce the latest release of our highly acclaimed Technical Manual. This Fourth Edition, released for EcoBuild 2010, is our most comprehensive manual to date, containing all the information a Building Professional needs to specify, design and detail JJI‑Joists in floor, roof and wall applications. Updates for the Fourth Edition include:
- New TRADA EWP‑0001 JJI‑Joist Strength & Stiffness Properties:
- New A+ & B+ JJI‑Joist widths
- Updated JJI‑Joist permissible design properties for BS5268‑2
- Updated JJI‑Joist characteristic capacities for Eurocode 5
- Updated maximum JJI‑Joist spans for domestic floor and flat and pitched roof applications
- Updated JJI‑Joist Environmental Information:
- Chain of custody
- Environmental management
- Life cycle
- Updated JJI‑Joist Hole Charts:
- Permissible round, square and rectangular holes
- Additional Acoustic Solutions for JJI‑Joist Compartment Floors:
- E‑FT‑1
- E‑FT‑5
- Screedflo system
- New Information Regarding JJI‑Joist Thermal Performance:
- Indicative U‑Values for various insulations and JJI‑Stud widths
Business Development Manager Mr. Mark Tilston explained: "This new edition of the Technical Manual is our most important manual to date as it contains our new JJI‑Joist TRADA Q‑mark strength properties to both BS5268‑2 and Eurocode 5, and updated joist span tables showing improved spans by as much as 355mm. Also as thermal performance becomes more and more important to the Designer, our wall section now includes easy to read indicative U‑Values for different insulations and JJI‑Stud thicknesses up to 300mm".
The fourth edition of the Technical Manual can be downloaded direct from the Timber Systems website (12mb): Downloads
Alternatively a hard copy can be obtained from any Authorised Distributor, or posted directly by emailing us through the 'contact us' form.
