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Tag Archive for Plasterboard

BGC Plasterboard Installation

BGC Plasterboard

BGC Plasterboard recommends that this section should be read in conjunction with the architects’ specifications to determine the Level of Finishes.

BGC Plasterboard should be installed after all preceding trades have been completed.

Ceilings should be installed first. BGC Ceilingboard should preferably be fixed with their long edges perpendicular to the windows or light sources, to obviate unwanted light reflections across the joints.

For the walls, BGC Plasterboard sheets should be laid with their long edges horizontal, to minimise the number of joints as well as light reflections across the joints. This is most important when Finish Levels 4 or 5 are specified.

BGC Plasterboard may be cut by scoring the face side and snapping back away from the score. Then cut the paper on the second side following the original score line. Neat straight cuts can be made using a straight edge.

The cut edges should be sanded smooth to form clean joints.

Control joints should be set at twelve (12) metres maximum, or at construction joints, which ever is the lesser.

BGC Plasterboard

Control Joints

Control Joints

Control Joints

Control joints must be installed in walls and ceilings at a maximum spacing of 12m, or at control/ construction joints, whichever is the lesser.

Architectural features, openings, and the like may be used as control joint set out points.

Rondo ‘P35’ or MBS ‘PXJ-30’ are suitable control/expansion joints.

Control joints are centrally located across the 15mm minimum gap between adjacent BGC Plasterboard sheets, and the flanges nailed at 300mm centres to the framing behind.

Control joints should be set at twelve (12) metres maximum, or at construction joints, which ever is the lesser.

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Plasterboard Framing

Plasterboard Framing

Plasterboard Framing may be fixed to timber, CFS light steel framing or furring channels, which satisfy the BCA requirements and which have been plumbed true and straight.

Timber framing must comply with the requirement of AS1684 ‘National Timber Framing Code’ and AS1720.1&.2 ‘Timber Structures’ and have a moisture content less than 16% at time of lining.

CFS light-steel framing must be in accordance with AS/NZS4600 ‘Cold-Formed Steel Structure Code’, AS3623 ‘Domestic Metal Framing’ and AS1397.

BGC Plasterboard may be fixed to CFS steel framing not exceeding 1.25mm BMT. Framing members must have a 35mm minimum face width for nail fixing and 32mm for screw fixing.

Frames must be plumbed true and straight, to comply with the degree of finish required of the BGC Plasterboard.

The tolerance deviation over 1.8m spans, along and across members, for 90% of the wall and ceiling framing.

Steel Frame Application

Plasterboard Framing

BGC Plasterboard may be fixed to the framing with either adhesive and nails or adhesive and screws as appropriate.

Water-based acrylic gypsum plaster adhesives such as BGC Stud Adhesive, which comply with AS2753, are suitable for fixing BGC Plasterboard to both metal and timber framing.

Adhesive fixing is used in conjunction with fasteners, except for wet and tiled areas, fire-rated construction, over vapour-barriers or existing work, where mechanical fasteners, nails or screws only must be used.

The position of daubs of BGC Stud Adhesive ‘O’ and permanent fasteners ‘X’ should be as set out.

BGC Plasterboard

Plasterboard Cornice Fixing Details

Plasterboard Cornice Fixing Details

Clean down area where cornice is to be applied, remove any excess render or loose material.

Mark a guide line to suite the bottom edge of the cornice (90, 75 or 55 down) and pre-cut lengths as required.

All corner joints, internal and external, are to be mitred. Where butt joints are unavoidable, ensure both ends are prepared to align accurately.

Apply (butter) a 10mm bead of cornice cement to both long edges and ends of the cornice.

Locate cornice to guide lines and temporarily block as required.
Fill mitres, cleaning off excess cement as you go.

Remove temporary blocking after BGC Cornice Cement has set.

Apply second topping coat to mitres and joints as required.

Note: only ever butter one length at a time and install immediately.

Contact surface may require damping down prior to fixing cornice, depending on drying conditions.

Cove Cornice

BGC Plasterboard Cove Cornice is designed to give a clean continuous line at the junction of walls and ceilings, and can be used with confidence on both Plasterboard lining and cement plastered walls alike.

BGC Plasterboard Cove Cornice is made of a plaster core with paper face to complement BGC Plasterboard and Ceilingboard. Cove Cornice should be fixed using BGC Cornice Cement with few special tools required.

The use of a mitre box and hand saw for cutting internal and external corner mitres is recommended.

Decorative Cornice

The Decorative Cornice range from BGC Plasterboard adds the finishing touch to the interior décor of your new home or renovation.

Esperance provides a timeless design suiting many different styles of home. The soft undulation of the curve provides a stylish finish to any room.

For the bolder finish, don’t look any further than the Albany decorative cornice. With dramatic steps and bold curves, Albany creates an eye catching feature in a room.

Cove Cornice & Decorative Cornice Images

Plasterboard Cornice Fixing Details

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