Fire Restraint Wall System, Firewall Sleeves

BW Fire Restraint Wall System

• In certain applications it is necessary to include fire protection to some or all of the perimeter walls around the building.
• There are many fire resistant wall cladding systems which are available today.

BW offer 2 fixing systems:

Fixing System 1

• ‘Butt/Non-Continuous Rail Arrangement’, normally fixed outside the columns.
• Can also be fitted between the columns.
• Allow 60mm gap at rail joint for expansion.

Fixing System 2

• ‘Sleeved Rail Arrangement’. Alternate sleeve butt/non-continuous connection to column, even number of bays.
• When odd bays occur, use the special sleeve.
• Allow 60mm gap at rail joints for expansion.

Special Firewall Sleeves

Punched with slotted holes to allow expansion at the side rail column connection.

General Notes

• The rail or cleat is slotted longitudinally (14mm x 50mm) on the standard gauge lines.
• 60mm gap required between ends of rails.
• Fixing bolts to all joints must be fitted with a combustible washer, which will collapse under fire conditions, to allow movement for the rail to expand.
• The period of resistance is solely dependent on the cladding material used, and the type of construction.
• A certificate should be obtained from the cladding supplier.
• All primary structural steelwork, supporting the rails and cladding, should be fire protected.

For more details and information, please refer to our Purlin brochure.