Timber or Steel Framed Wall - System GBX 3
Suitable for use between X-ray Rooms and non-Protected Spaces.
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| Framing |
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Timber |
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- Studs shall be 90 x 45mm minimum spaced at 600mm centres maximum
- Nogs are to be set at 800mm centres maximum
- The moisture content of the timber framing shall be 12 - 16% at the time of lining.
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Steel |
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- Steel stud dimensions to be 63 x 34 x 0.55mm minimum with 6mm return and spaced at 600mm centres maximum
- Steel channel dimension to be 63 x 30 x 0.55mm nominal
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| Note: In fire rated situations, the steel studs must be placed to allow a 15mm expansion gap at the top of the frame. |
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| Lining |
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X-ray Room Side |
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- 3 Layers of 13mm GIB® X-Block™
- Vertical fixing only permitted
- Vertical joints of the outer layer are offset by 600mm from adjacent layers
- All joints must be formed over framing with linings fixed hard to floor
- Other side - 13mm GIB® plasterboard as specified depending on the function
required
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| Fire and Sound Ratings |
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For information on the Fire and Sound Ratings please phone the GIB® Helpline 0800 100 442. |
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| Fastening the Lining |
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Fasteners - Timber Frame
Inner layer - 41mm x 6g GIB® Grabber High Thread Drywall screws
Middle layer - 51mm x 7g screws as above
Outer layer - 63mm x 8g screws as above
Fasteners - Steel Frame
Inner layer - 25mm x 6g GIB® Grabber self tapping Drywall screws.
Middle layer - 41mm x 6g screws as above
Outer layer - 51mm x 7g screws as above
Fastener Centres - Timber Frame
Inner layer - 600mm centres up each stud and to the top and bottom plates
Middle and outer layer - 300mm centres around the sheet perimeter, 12mm from the sheet edges
Single screws at 300mm centres to the intermediate studs
Fastener Centres - Steel Frame
All layer 300mm centres up each stud, 12mm from the sheet edges
No fasteners to the top and bottom channels |
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| Jointing |
Inner and middle layer - Stop all GIB® X-Block™ sheet joints, using only GIB® X-Block™ jointing compound flushed out between the tapered edges (paper tape not required on the inner layers).
Outer layer first coat - The joints must be reinforced using only paper tape and GIB® X-Block™ jointing compound. Conventional topping compounds are used to complete the jointing process.
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