6708 l2 222_presentation_5

Level 2 Diploma in Plastering

© 2013 City and Guilds of London Institute. All rights reserved.

PowerPoint

presentation

Direct bond walls with windows and piers

Unit 222: Fix dry lining and plasterboards to

interiors



Assessment criteria

2.2 comply with specifications and schedules

5.1 describe the process of planning work

5.3 describe the purpose of maintaining in-line level and

plumb

6.1 apply dry lining using adhesive compounds to vertical

backgrounds



Did you know?

• The sides of the window are called reveals.

• The top underneath part is called the head or

soffit.

• The bottom ledge is called the sill.



Fixing plasterboards



Windows and pillars

At some point it is inevitable that you will need to fix to

walls with windows or returns.



Attached piers

Piers built into the middle of a wall must be made to run

parallel to the back walls and the returns should be made

square.

This can be done by using a tape measure and square

when marking out the chalk line to the back wall.

Marking out can be done on the floor and ceiling, and to

fixed boards on the back wall once they are in place.



Attached piers

Floor plan showing setting out to ensure

that the boards will be square and parallel



Attached piers

When fixing, the boards to the back wall should be fixed

first.

The square can be used against the back wall once those

boards are in place.



Attached piers

By fixing to lines, both side of the pier

will be in line with each other



Internal angles

By using a square, the reveal

can be set from the plumb

board. This will ensure a

prefect right angle.



External angles

Squares can also be used

on the external angles



Windows

When setting out a window wall, you should set the boards

from the reveals.

Allow some extra for an overhang when measuring to allow

for a neat external angle joint.



External angles

It is recommended that you have two tapered edges on the

external angle in order to form a neater finish.

If not possible, a tapered/good edge should be placed over

the square/cut edge.



Windows

Plasterboard fixed

correctly with

overhang



Windows

Plasterboard fitted

with no overhang



Window reveals



Windows

If you have to cut a board for under or above the window, ensure that you keep one tapered edge for joining.

The reveal boards should be placed with the taper edge to the external angle and the cut to the window frame.

Once all of the boards have been cut, you can fix them just the

same as you would a straight wall.

A continuous band of adhesive must be placed around the

opening in order to prevent fire and air from getting behind.



Fixing plasterboards



Any questions?

6708 l2 222_presentation_5

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