The A1S group are able to provide
a comprehensive range of steel pedestrian doors for external enveloping,
fire resistance, sound reduction and security applications.
Our products are fully certified
to UK and European test standards:
BS EN1631-1
and DIN4102 fire test standards
Up to 240
minutes integrity and 90 minutes insulation in all conventional
door configurations
ISO 12567-1
thermal insulation, conforming to Building Regulations
Approved
Document L2:2002
ISO140-3 acoustic test standard up to Rw 55dB
ENV1627
security test standard up to WK4
A1S steel hinged doors are available
in single and double leaf configurations with over panels, side
panels, standard and architect specified ironmongery, louvres and
rectangular and round vision panels in a range of sizes and performance
glazing options.
Optional finishes include stainless
steel and PPC and acrylic low bake paint in any BS or RAL colour.
Check below for the
full specification.
External enveloping steel
doors
Leaf
Constructed from two skins of
1.0mm thick galvanized steel folded to form a 42mm thick door unit
with the vertical edges of the two skins are folded to create a
full height, interlocking rebated edge for increased panel strength
and rigidity. A horizontal channel is located within the leaf, welded
to the inner & outer skins close off the top and bottom of the
leaf.
The void between the two skins
is in-filled with a bonded mineral fibre core material and reinforcing
pads are fitted within the leaf to suit surface mounted hardware
options.
Both vertical edges are reinforced
with 4mm thick steel strips welded within the leaf, and the lock
mechanism is installed within an inner enclosure to facilitate its
removal for future maintenance or replacement.
Frame
Frames pressed from 1.5mm thick
galvanized steel to form a non-standard, 120mm deep, double rebate
profile with recessed front faces flush with the leaf edge rebates.
Headers form a smooth, butt joint with the full height vertical
posts with bolt fixing to block-work openings.
Uprights are reinforced with
steel plates at all hinge & lock points.
Thresholds
Low profile (12mm) extruded
aluminium with integral silicone compression seal.
Alternatively, a double rebate
profile steel member welded to the base of the vertical posts (four-sided
frame.)
Seals
Tubular silicone seals bonded
into the frame rebate which, in conjunction with the threshold seals
ensures accurate sealing of the door/frame gap for weather protection.
Hinges
Door leaves hung from 1½
pairs of 3.4mm thick, grade 316 stainless steel, high performance
polymer bearing hinges, grade 14 (160Kg) to BS EN 1935: 2002.
Finish
PPC white primer finish as standard.
Also available in any BS or RAL colour
Hardware
Panic Escape
DORMA PH series single and double
leaf panic systems with enclosed shoot bolts or equivalent
Locks, latches and mortice deadlocks
DIN standard lock with Euro-profile
cylinder and turn.
Lever Handles
Stainless steel 19mm diameter
with roses
Closer
DORMA TS83 heavy duty overhead
closer with back check facility, or alternative, equivalent unit
Flush Bolts
Zero Z008.1/S concealed extension
flush bolts with steel tips fitted
to the edge of the passive leaf
Performance
Doorsets are designed and manufactured
to BS EN 9001 Quality Assurance Standards. They meet the thermal
insulation requirements laid down in Building Regulations, Approved
Document L2: 2002 – U value 1.9W/m²K - and have been
tested up to 200,000 cycles to the European Product Standard for
External Doors, EN12567-1
Fire rated
steel doors
Leaf
Constructed from two skins of
1.0mm thick galvanized steel folded to form a 45mm thick door unit
with the vertical edges of the two skins are folded to create a
full height, interlocking seam for increased panel strength and
rigidity. A horizontal channel is located within the leaf, welded
to the inner & outer skins close off the top and bottom of the
leaf.
The void between the two skins
is in-filled with a bonded honeycomb core material, selected for
its compression & torsional load performance, and reinforcing
pads are fitted within the leaf to suit hardware options.
The hinging edge is reinforced
by steel hinge mounting plates welded within the leaf, and the lock
mechanism is installed within an inner enclosure to facilitate its
removal for future maintenance or replacement.
Frame
Frames pressed from 1.5mm thick
galvanized steel to form a non-standard, 120mm deep, double rebate
profile. Headers form a smooth, butt joint with the full height
vertical posts with bolt fixing to block-work openings.
Uprights are reinforced with
steel plates at all hinge & lock points.
Thresholds
Low profile (12mm) extruded
aluminium with integral silicone compression seal.
Alternatively, a double rebate
profile steel member welded to the base of the vertical posts (four-sided
frame.)
Seals
Tubular silicone seals bonded
into the frame rebate which, in conjunction with the threshold seals
ensures accurate sealing of the door/frame gap for smoke protection
in the initial stages of fire and meet the requirements of BS5588:Part1
Hinges
Door leaves hung from 1½
pairs of 3.4mm thick, grade 316 stainless steel, full ball-bearing
hinges for smooth operation, in high cyclic/heavy duty applications,
and as fire tested with the doors.
Finish
PPC white primer finish as standard.
Also available in any BS or RAL colour
Hardware
Locks, latches and mortice deadlocks
DIN standard lock with Euro-profile
cylinder and turn.
Lever Handles
Stainless steel 19mm diameter
with roses
Closer
DORMA TS 71 or TS83 overhead
closer
Flush Bolts
Zero Z008.1/S concealed extension
flush bolts with steel tips fitted to the edge of the passive leaf
on double leaf doors
Performance
Doorsets are designed and manufactured
to BS EN 9001 Quality Assurance Standards. They have been tested
to the European fire test standard, BS EN1634-1 for periods of up
240 minutes integrity in most conventional door configurations.
