Suspended Ceilings

Suspended plasterboard ceilings can be used in homes to provide a smooth, attractive finish with acoustic insulation to block sound from the room or apartment above.

Advantages

When insulating between timber joists, the whole depth of the joists can be utilised as an insulation zone. If glasswool insulation is installed between the joists, this method of construction achieves a very good insulation value without increasing the depth of the floor construction.

Knauf Insulation Products

• Classic 040 is made from glasswool and formed into unfaced rolls which are lightweight, flexible, resilient and non-combustible.

Summary

Knauf Insulation provide thermal insulation products that are suitable for timber upper floor constructions.

Detailed Design Considerations

Suspended Timber Upper Floors

In timber joisted floors the insulation is usually located between the joists. A vapour control layer is not usually necessary because of the risk of trapping water spillages.

Typical Specification Clauses

Timber Suspended Floor

Classic 040 ......mm thick, supported on the ceiling to fit tightly between the joists. Thermolan 040 to be cut and placed to fully fill in the gap between the last joist and the perimeter wall.