To Be Read with Preliminaries / General Conditions

SUSPENDED CEILINGS –

To be read with Preliminaries / General conditions.

SUSPENDED CEILING(S)

-Drawing reference(s):

-Structural soffit : To be confirmed

-Ceiling system: Exposed grid.

Manufacturer and reference:

USG (UK) Ltd,

Swan Road,

South West Industrial Estate

Peterlee,

Co.Durham, SR8 2HS.

Tel: 0191 586 1121,

Fax: 0191 586 0097.

USG Radar accessible acoustical ceiling system with fine non-directional fissured ceiling tile, SQ edged product code reference ME 2120.

-Suspension system: Grid and hanger fixings and spacing as recommended by the suspended ceiling/membrane manufacturer.

Grid type: Donn DX24, System A

Grid shall be DONN DX24 exposed grid system, hot dipped galvanised steel ' T ' section with pre painted white capping. Main runners ref DX24X - H370 W are to be installed at 1200mm centres from soffit using pre-straightened wire hangers ref DSW2 at 1200mm centres. 1200mm cross tees ref DX24T H120 W are to be installed between the main runners at 600mm centres to form a 1200mm x 600mm module. The 600mm cross tees ref DX24T S60 W is then installed between the 1200mm cross tees to form the 600mm x 600mm module.

-Grid colour: Donn White 20% Gloss

-Hangers: DSW2 wire hanger fixed through stalk in main runners, and wrapped around itself 3 times

-Perimeter trims: MI 2919 W

-Membrane material(s): USG Radar tiles ref ME2120, with a Shadowline tapered edge profile ref. SLT.

-Size(s): 600mm x 600mm x 15 mm.

-Finish/colour: White.

-Insulation:

-Services fittings: Install ______

-Accessories: ______

-Other requirements:

-Fire resistance of suspended ceiling assembly:

-Up to 30 minutes effective protection to steel beams in accordance with BS 476: part 23.

-Consult USG Technical Services for full details and a copy of the relevant fire test report prior to installation.

-Fire spread rating for materials exposed both to the room and the void, in accordance with Building Regulations Approved Document B = Class 0

-Fire spread rating for materials exposed both to the room and the void, in accordance with BS EN 13964 = A2-s1, d0.

-Light reflectance =>85%

-Humidity resistance RH70% / 29ºC, Class A in accordance with BS EN 13964.

-Thermal resistance to R 0.25 m² ºC/W

-Ceiling tile and grid both comply with the relevant requirements of BS EN 13964: 2004.