No_2_1959 — Page 65

GRECON FIXING SYSTEM FOR SUSPENDED CEILINGS

Recent years have seen a rapid Fast Installation - Needs improvement in fixing systems for suspended ceilings. Among many developed in post-war years

and

No Skilled Labour

1 in. panel thickness.

Following are some of the applica- tions of the Grecon system:-

Half-drop ceiling: To reduce the one which has not yet been used where lightweight insulation (expanded area

and, to be air-conditioned in this part of the world is the polystyrene) or conventional fibre with it of course, the cost of electric- Grecon system of Grecon System Ltd. board is required, the "T" sections ity the system can be adapted to

A feature of this scheme which being wired to metal and concrete form a half-drop ceiling.

-

This also gives a saving in installation costs.

work, using the standard system, with Fig. 5 shows the completed frame-

the addition of suspension tubes which provide a "solid" stop for the sec-

invites comment is the metal "T" purlins or nailed to wooden ones. section. It is erected the opposite

At cross joints plastic noggin bars, way to other manufacturers,' i.e. the available in colour, may be used. cross-bar of the "T" is at the top, These are metal "T" in 2ft., 4ft., while the leg of the "T" points and 6ft. lengths for 1/2 in., 3/4 in. downwards, thus enabling the in- and 1 in. thick panels, and plastic tions. dividual panels or acoustic tiles to be "H" in 2 ft. lengths for use with 1/2 pended between purlins below the removed, and repairs to be carried in., 3/4 in., and 1 in. thick expanded out speedily and easily to any of the polystyrene panels (Fig. 2). fixtures in the ceiling, such as roof lights, etc. (Fig. 1).

The main advantage of the Grecon system is the speed with which it can

By Tan Hock Meng, B. Arch.

It shows the "T" being sus- ridge. Suspension tubes are located over the standard hangers, and are tied around the purlin. These tubes thus provide a 'solid" stop when

be used on all cross joints. applying clips. Noggin bars should

Full drop ceiling: As well as em-

Where a neat joint finish is requir- be installed. It requires no skilled ed, Sealaclip, a plastic cover strip labour. Because of the lightness of designed to suit 1/2 in., 3/4 in. and the components very little extra 1 in. clips is recommended. These bodying all the money-saving advan- weight is added to an existing roof. strips are also available in colour tages of the half-drop ceiling, the full for Most importantly, the price is under- (Fig. 3).

drop ceiling provides a facility architects to introduce another stood to be competitive.

For vertical plane Snapseal, a plas- "dimension'" into interior decorating The Grecon standard system com tic cover strip (also available in schemes. Thus, for example, by in- prises 9-ft. lengths of "T" section colour), designed to snap around the troducing metal noggin bars in con- galvanised steel (1), spring clips (2), "T" section without using clips and junction with sealaclip or with plastic steel hangers (3), sleeves (4) and gal- forming a neat joint seal, is suitable. noggin bars, the monotony of a con- vanised wire (5). The clips are made Fig.

4 shows the cross sections

1

tinuous, unbroken-surface can be

to accommodate a panel thickness of of the strips for straight joints avoided. The noggin bars have also 1/2 in., 3/4 in. and 1 in. Special to suit 1/2 in., 3/4 in. and the desirable secondary effects of pro- clips for tiles are also available (Fig. in. panel thickness; for diagonal viding additional support and of en- corner treatment to suit 1/2 in. suring that the end joints of panels The standard system may be used panel thickness; and for right angle are perfectly sealed. Suspension in factories, public buildings etc. corner treatment to suit 3/4 in. and tubes (Fig. 6) are used to ensure a

1).

PICT

TI

FIG. 3

FIG. 4

FIG. 7

PIC +2

갑

FIG. 13

FIG. 4

F1

71414

FIG. 9

rigid ceiling.

Archway lighting: The horizontal plane offers wide scope for architec- tural feature. A pleasing and effective ceiling would result by utilising the system with lightweight acoustic or decorative panels and a Sealaclip sur- round. Again, the overall effect could be further enhanced by the use of staggered archways of light.

In Fig. 7, "T" sections are hung at 1 ft. intervals, the outer ones pro- viding anchorages for the ends of a metal arch to which a tubular light is attached. As an infill below the archway, an egg-crate of translucent sheeting is used.

Concealed wiring: The framework on which the system is based is suf- ficiently strong to permit the installa- tion of electric lighting conduits above the insulation panelling, the conduits

57

THE HONG KONG & FAR EAST BUILDER

VOLUME 14, NUMBER 2

Page 65Page 66