Jumbo Stud Partitions >>

High Bay Walls

Description

Gypboard Jumbo metal stud wall is most suitable for greater heights and ultimate fire and sound insulation performances. Jumbo studs of 146 mm are placed vertically at 610 mm centres, into the floor and ceiling channels of 148 mm. Gypboard fixing channel is fitted, to vertical stud so that the horizontal ends of the outer layer of boards can be screwed through the fixing of channels. The system is recommended for a height upto 10.5 metres which will provide fire resistance upto 90 minutes and sound insulation upto 52 dB.

When completed, these light weight wall weigh much less than conventional walls of comparable thickness which can effect saving in a structural design. The system, also easily allows for the inclusion of services during construction. The joints formed by using tapered edge Gypboard can be finished in the recommended manner to achieve a smooth, seamless surface for flush finish which can be decorated with most proprietary finishes.

Performance - Fire Protection

Because of the gypsum core, which contains water in a crystalline form, Gypboard provides effective protection against fire. When subjected to high temperature, the contained water dissipates the heat and prevents the spreading of fire. As a result of their performance, when tested to BS 476 Part 7, 1971,the surface of Gypboard is classified as class I as per CBRI report No. F(c)-061/June 1991.

Sound Insulation

Being non-resonant material, Gypboard wall systems have sound insulation properties varying from 36 dB to 45 dB.

Thermal Insulation

'K' value of the board is better than other conventional types of boards and hence can provide better thermal insulation. Thermal conductivity (K) value of Gypboard is 0.16 w/mk.

Installation

The perimeter framing (channels to floor and head & stud to abutments) is securely fixed at 610 mm centres. Studs are then placed into the floor and ceiling channel and turned in to position. The studs should be cut to neat fit with maximum possible entry into the head channel. Studs are fixed to the channels in situation where the studs are directly adjacent to a door opening. The studs are set out at 610 mm centres and with allowance for board width tolerances. Extra studs being used at opening and junction, when 610 mm spacing is interrupted. The channels are secured to each stud with crimping tools and fixing channels to provide at the horizontal joints of two boards.

Boarding

Double layers of Gypboard are fixed to either side of each stud and channel section with 25 & 35 mm long drywall screws at 300 mm centres. At external angle, screw centres are reduced to 200 mm centres. The vertical joints on each side of the partition or wall are staggered to avoid through joints.

Jointing & Finishing

Finally the boards are to be joined and finished so as to have a flush look which includes filling and finishing the tapered or square edges boards with jointing compound and joint paper tapes. Two coats of Dry wall top coat are applied as a primer.

Glazing & Door Frame

Channel sections, used to form the glazing/door opening should be fixed during the erection and the glazing/door frame should be screw-fixed to the metal frame with screw penetrating 35 mm into the vertical member as per recommended practice.

Fixtures

Light weight fixtures can be fixed directly to the walls. Medium to heavy weight fixtures can be fixed by providing fixing channel or timber noggings or cavity fastners. Heavy fixtures can be fixed by providing extra supports at the time of erection of the frame.

Services

Should be installed as work progresses. The installation of electrical services should be carried out in accordance to the recommendations.

Surface Finishes

Most types of paints, laminates, wall papers, ceramic tiles, texture finishes are possible to be applied directly on Gypboard surface after the Dry wall top coat has been dried on completion of jointing & finishing done as per recommended practice.