Metal A metal stud partition (minimum 50mm steel studs) infilled with 50mm Crown Acoustic Partition Roll or 50mm Rocksilk Flexible Slab and faced each side with 12.5mm standard wallboard meets the requirements of the Building Regulations for a 40 dB partition. The partition should be sealed with an acoustic sealant at it's perimeter and at all service penetrations. Timber A timber stud partition (minimum 63x38mm studs) infilled with 50mm Acoustic Partition Roll or 50mm Rocksilk Flexible Slab with 12.5mm standard plasterboard each side meets the requirements of the Building Regulations for a 40 dB partition. The partition should be sealed with an acoustic sealant at its perimeter and at all penetrations.

Installation

Construct the timber or steel frame and apply a bead of acoustic sealant to the back of the members that are fixed to the surrounding structure. Board out one side of the partition before inserting the insulation.

Within metal partitions, Acoustic Partition Roll and Rocksilk Flexible Slab are designed to friction fit between metal studs at 600mm centres. Support the Acoustic Partition Roll at the head of the partition by means of a light steel angle. Rocksilk Flexible Slab is sufficiently rigid not to need supporting at the head. For maximum acoustic performance, hang the insulation in the centre of the partition void and fit tightly up against the studs on both sides.

For timber partitions and standard plasterboard, 50mm Acoustic Partition Roll and Rocksilk Flexible Slab are designed to friction fit between timber studs at 600mm centres. Support the Crown Acoustic Partition Roll at the head of the partition whilst installing and fit tightly against the timber studs. Rocksilk Flexible Slab is sufficiently rigid not to need supporting at the head.

Alternatively, use 25mm Acoustic Partition Roll, friction fitted between timber studs at 600mm centres and supported at the head of the partition by means of a timber batten.

For maximum acoustic performance, fit all insulation tightly up against the stud sides.

Timber Studs

• Improves acoustic performance to 40 dB, meeting Building Regulation requirements
• Satisfies 40 dB performance with a single layer of plasterboard each side
• Minimises partition width
• Prevents hollow sound that can occur in partitions with empty cavities
• Provides thermal insulation

Metal Studs

• Improves acoustic performance to 40 dB, meeting Building Regulation requirements
• Satisfies 40 dB performance with a single layer of standard plasterboard each side
• Satisfies performance with standard 50mm studs
• Minimises partition width
• Prevents hollow sound that can occur in partitions with empty cavities
• Provides thermal insul