Fire Rated Loft Hatches

Fire Rated Loft Hatches provide added protection.

SDS Fire Rated Bespoke Loft Hatch

FIRE RATED - ONE WAY | BESPOKE SIZES

Fire Rated options: 1 Hour (BS EN 1634) or 90 Min (BS 476)
Recommended 2 x Locks on larger hatches for air tightness
Comes with free opening pole
U-Value 0.32W/m²K & Air Test Rating of 0.23m³/m/h (Part L Compliant)

Manufactured with a flush, neat ceiling finish
Standard Powder-coated White Finish
Fabricated using 1.2mm Zintec steel
Made to Measure to bespoke requirements (non-returnable)

UK Made

1 Hour

Lock Options

Air Tested

0.32

Specifications

The SDS is a precision-made, bespoke metal loft hatch providing certified Fire Rating, superior airtightness, and full compliance with Building Regulations Part L.

Fire Integrity & Thermal Performance:

• Fire Rating: Certified for a One-Way Fire Rating, providing essential safety and integrity to the ceiling compartmentation.
• U Value & Compliance: The lid contains 50mm of exposed mineral wool insulation, achieving a U value of 0.32 W/m²K, fully complying with Part L of the Building Regulations.
• Airtightness: Features a concealed seal and a specialised locking system to achieve an incredible airtightness rating, critical for energy efficiency.

Bespoke Sizing & Installation Guidance:

• Custom Sizing: Hatch is made to your exact measurements, requiring the length and width of the loft opening (joist to joist) in mm, with a 5mm deduction for fitting tolerance.
• Frame & Protrusion: The hatch frame depth is 63mm (up into the loft), and the finished panel has a minimal protrusion of 7mm from the ceiling, ensuring a subtle, clean aesthetic.
• Dual Lock Recommendation: For widths exceeding 750mm on the hinge side, two locks are recommended to ensure a secure, tight draught seal.

Construction & Locking:

• Construction: Fabricated from corrosion-resistant 1mm Zintec Steel. All hinges and fixings are concealed.
• Standard Lock: Tri-drive lock featuring an O-ring seal on the shaft for ultimate airtightness. Optional Key lockable version also available.
• SDS-FR-OS: Please note this product comes with 2 x Tri-Drive Locks