1HR Fire-Rated Acoustic Door Sets

Door Leaf Thickness: 48mm

Rw Rating: 30

Door Height: 2120mm – 2400mm

Door Width: 920mm – 1020mm

Door Leaf Thickness: 48mm

Rw Rating: 30

Door Height: 2120mm – 2400mm

Door Width: 920 / 920mm – 1020 / 1020mm

Door Leaf Thickness: 48 / 48mm thickness. Min. 76mm gap.

Rw Rating: 46

Door Height: 2100mm – 2400mm

Door Width: 920mm - 1120mm

All Spence Doors' acoustic + fire-rated door leafs feature a core appropriate to both acoustic performance and fire-resistance. This is a specialty core expressly designed and tested to resist the passage of sound from one side of a door set to the other.

The frame of an Acoustic Door Set must be compositionally solid throughout. For 1HR FR applications, this must be a Pressed Metal frame (minimum 1.6mm thickness) with Spence Doors approved mortar or other material for backfilling. The profile of frame is dependent on the particular details of specified door set; some will require a return / inset section in the frame for seals to be fitted whilst others only require surface adhered seals. See Seals for more information.

A typical door set features a 3 - 10mm gap below the door which presents another opportunity for sound to pass through. This bottom-of-door gap is sealed by a Drop Seal / Bottom Seal which covers the gap between the door’s underside and the floor covering. This Bottom Seal may be surface mounted onto the door’s face, or mortised (or semi-mortised) into the door’s underside to stay hidden in applications where aesthetic finish is important. The specific model of Bottom Seal supplied upholds the 1HR Fire Rating required of the complete door set. Spence Doors’ Profiling service can prepare the cutout for the Bottom Seal to be made in advance and minimise the time and labour required when installing on-site.

Some Acoustic Door Sets (but not all) address the perimeter gaps in the door set. A typical door set features a 3mm gap along its perimeter (sides and header) which present an opportunity for sound to pass through. This perimeter is addressed by an acoustic seal fitted onto / into the frame to close off the gap and subsequent ability for sound to pass through. This seal comes in three distinct seal types depending on required acoustic and fire-resistant properties.  The specific type and model of seal supplied upholds the 1HR Fire Rating required of the complete door set.

In a Pair Door, acoustic seals are also required along each of the door’s leading edges. This comes as a result of the gap between doors presenting a new opportunity for sound to pass through. This also applies to Pivot Doors as the non-hinged stiles require a gap for clearance to swing properly. Meeting Stiles come in a number of forms determined by the door set’s acoustic and fire-resistant requirements.  The specific model of Meeting Stiles supplied uphold the 1HR Fire Rating required of the complete door set.