Quality, Durability and Prices, Tried and Tested for More Than 40 Years!
METAL JOINERY
Clauses for specification
Sliding doors
Quality, durability and prices, tried and tested for more than 40 years!
Introduction
(for the attention of Project Owners and Designers)
Dear Partner,
Have you ever thought about the "extras" that your doors ought to be able to provide to deal with the stresses to which they are subjected:
· high frequency of use;
· corrosive atmospheres;
· impacts;
· different weather conditions;
· fire;
· vandalism;
· attack;
· noise;
· etc.
In the face of these inevitable, but generally under-estimated, stresses, the choice – usually for financial reasons – of a traditional door will lead rapidly to a prohibitive cost in use due to multiple maintenance operations, or even the premature replacement of the door set.
How can such a situation be avoided?
What is the state of the art in terms of technical specifications and standards?
How can a specification be effective but succinct?
This is why we have written a specification for you that contains objective and clear texts.
These include the description and, especially, the levels of performance that you have the right to insist on for any metal door set, which will guarantee a sound comparison and enable you to make the right choice.
Yours sincerely,
Contents
General information
- Warning to the reader
- Quality of the products
- Quality of execution of the work
Sliding door sets
- Basic features p5
- Levels of performance p 8
- Fittings p 10
Appendices
General information
Warning to the reader
All the options are placed in square brackets; those options not required should be deleted.
All additional information, intended to assist reading, is placed in round brackets.
Quality of the products
- All the documents certifying the claimed levels of performance – test reports, approvals, certificates, BENOR-aTg certificates, samples, technical data sheets, etc. – shall be submitted to the [Architect][Engineer][Project Owner] before the work starts.
- Any document referred to in the specification (standard, relevant technical specification, test report, approval, certificate, etc.) may be replaced by another that is acknowledged to be equivalent, the equivalence being established by an appropriately-accredited organisation or laboratory.
- The supply of products with an inferior level of performance subject to a reduction in price will not be permitted.
- The levels of performance specified for a door set (door leaf, frame, fittings) or a mixed partition shall be inseparable.
Quality of execution of the work
- The works shall be carried out in accordance with the instructions of the Project Owner or of the Architect, in compliance with the rules of good practice and/or in accordance with the relevant technical specifications, or any other document acknowledged to be equivalent, the equivalence being established by an appropriately-accredited organisation or laboratory.
Sliding door sets
1. Basic features
1.1. General construction
- Despite being for different purposes, all purpose-made doors from the same manufacturer shall be of the same thickness (±71mm) and of the same construction and shall be of identical appearance.
- The frame shall cover the whole thickness of the wall and shall be rigidly anchored to the structure using steel cramps, subsequently grouted in with concrete on three sides, complying with the existing constraints: thickness of the wall, making good up to columns, etc.
- The thickness of the structural units shall be at least 2 mm.
- The thickness of the sheet metal door leaf facings shall be at least 1.5 mm.
- The frame and the sheet metal facings shall be first-quality hot-galvanised, i.e. 275 g/m² minimum.
- The door leaf shall be constructed around an internal tubular framework. This 60 x 60 mm load-bearing framework, 2 mm thick, shall be treated against corrosion. The four edges of the metal facing shall be folded over the edge of the leaf and screwed to the framework, without welding. This will preserve the original galvanisation and will mean that painting will not necessarily be needed after fixing. The sheet metal facings shall be replaceable in the event of accidental damage.
- The interior of the door leaf shall be filled with high-density rock wool.
- For fire doors, an intumescent product shall be incorporated invisibly into the edges of the leaf. This construction will provide protection against mechanical damage and humidity. The intumescent product shall be maintenance-free.
- The internal structural units shall be treated against corrosion by sand-blasting and a coat of anticorrosion paint.
- The jointing of the elements essential to the endurance of the door set shall be carried out by mechanical means (screwed).
- The frame shall first be rigidly fixed to the structure using steel fixings and then grouted in with concrete, complying with the existing constraints: finished floor level, frame flush with finished wall, etc.
- The door set shall not project from the finished wall by more than 300 mm.
- The guide rail shall be made from high-quality, galvanised steel.
- The size of the rail shall be suitable for the load to be carried by the runners; the average spacing of the fixing supports shall be 80 cm.
- The bearings shall be in stainless steel, sealed against dust and with independent impact-resistant roller bearings; the grease shall be capable of withstanding ambient temperatures from -20°C to +140°C and shall last the for the life of the bearing.
- The oblique shape of the section of the rail shall hold the runners in the proper position; a flat guide rail shall allow any dust to be removed.
- Double doors shall have flexible stops fitted with sealing strips so as to be invisible; the same shall apply to the addition of any modules.
- For openings of large sizes, the leaf shall be divided into easily-interchangeable modules no more than 1400 mm wide.
- [The sides of the opening shall be finished with a metal capping to match that of the door set]
- Basic fittings:
o A fixed ergonomic handle in cast elox aluminium shall be fixed onto the outside; its fixing shall be suitable for the weight of the door leaf.
o An ergonomic recessed ring handle shall be fixed on the inside, with no adverse effect on the levels of performance of the door set.
1.2. Operation
- In normal use, it shall be possible for a single person to open and close the door easily from any position of the door leaf; a counterweight, fixed directly to the door leaf, shall not be used.
- In the event of a fire, the door shall close automatically by the release of a counterweight.
- The door shall close gently, i.e.:
. with no end-stop bounce.
.even if the door has been prevented from closing
- There shall be no floor guide.
- In normal use, the counterweight shall be held by [a thermal fuse] [a 24V DC magnetic holder] to be connected to the fire detection system.
1.3. Glazing
a) Type
- The glazing shall comply with the provisions of STS 38.
- It shall be of the [single] [double], [insulating] [super-insulating], [double 2 x 4 mm safety with PVB intermediate layer] type.
b) Traditional fixing
- The fixing of the glazing shall be masked by removable glazing beads; the beads shall not be bedded in mastic.
- There shall be no weakness at the junctions between the glass and the door set.
- In the case of doors with large areas of glass:
- the width of the stiles and of the top rail shall not exceed ±170 mm;
- the width of the bottom rail shall not exceed 300 mm.
c) Glazed area
- For doors with large areas of glass, the area shall be limited by the dimensions of the structural units of the door leaf.
- The vision panels shall be size [L80 x H80 to 1200mm][L200 x H200 to 1200mm][L360 x H360 to 1200mm]
1.4. Finishes (to be selected)
a) Standard galvanisation, painting not obligatory
The door set shall be given double protection in the factory:
- hot-galvanising (minimum density: 275 g/m2; composition: zinc + aluminium);
- primer (minimum thickness: 2 mm; composition: powder-coating)
The structural units essential for the durability of the door set shall be assembled mechanically. The original galvanisation of the door leaves and frames shall remain intact. Painting (and later repainting) shall not be necessary for this.
b) Painting after fixing
Painting shall be carried out on site, after fixing in accordance with good practice, on a clean, dry and degreased surface. (Recommended for external doors and/or in a corrosive atmosphere)
c) Stainless steel 304 or 316
The frame and /or the door leaf may be manufactured using stainless steel [304] [316].
1.5. Warranties
- 10 years on the door set (frame, leaf and hinges).
- 2 to 10 years on the specific fittings, with effect from formal acceptance.
- 10 years on the availability of spare parts identical to or equivalent to the original parts.
- Thanks to its modular, screwed construction, simple replacement of fittings, door facings and hinges.
2. Performance
2.1. Basic performance
1. f = frequency of use in accordance with: EN1191, EN12046-2, EN12400.
High frequency of use F1
2. M = improved mechanical strength class in accordance with: EN947, EN948, EN949, EN950.
class R4 or M+7: for door leaves of standard dimensions up to 93 x 201.5 cm.
class R3 or M+6: for door leaves of large dimensions up to 100 x 220 cm.
class R2 or M+5: for door leaves size 120 x 250 cm.
- In accordance with STS 53 Doors publ. 1993, art.53.04.32 (increased frequency of use F1 and F2) and
art.53.04.33 (improved mechanical strength) R1 to R4.
- In accordance with STS 53 Doors publ. 2006, art.53.1.4.2.4. (frequency of use F1 and up to f8) and
art.53.1.4.3.9. (improved mechanical strength M+: M5 up to M7)
For fire-resisting doors, these values shall always be mentioned in the manufacturer's Benor BUtgb, chapter 6 Prestations.
3. T = Thermal insulation NBN EN 12412-2 and ISO 10077-1 and 2.
Class T1 – T6
4. L = Airtightness EN1026 and EN12207-1
Class L1 – L4
2.2. Optional levels of performance
EN standards (also mentioned in STS 53 2006 edition)
a) Belgium: Fire resistance NBN713.020 or BENOR:
Rf30, Rf60
b) Other countries:
§ Fire resistance, flame resistance and insulation EN 13501-2 (EI1)
EI1 30, EI1 60, EI1 90,
EI2 30, EI2 60, EI2 90, EI2 120
§ Radiation resistance EN
RW
c) Bullet-proof EN1522-1 (FB or BR)
Glazing: FB1 – FB7 (EN 1063)
Doors: BR1 – BR7
3. Fittings for sliding door sets
Hook lock
- The lock shall be a hook-shaped deadlock, operated [by lever handle] [by Europrofile cylinder, supplied with three keys]
Half-moon type handles
Pull handle
Pelmet
- An attractive pelmet shall be made from first-choice, hot-galvanised steel sheet 15 mm thick.
Indication of door leaf position: magnetic contact
- This fitting shall allow the position of the door leaf to be known at any time, remotely (start and end of travel).
- The indication shall be given by magnetic contact between a permanent magnet recessed into the door leaf and a contact recessed into the frame.
- The fitting shall be totally insensitive to dust and humidity.
- [In the case of a double door, a magnetic contact shall be provided for each leaf.[
Electro-magnet to prevent closure
Institutes and/or organisations involved with quality
Belgium
- ANPI – Personal Safety Association (http://www.anpi.be)
- BOSEC – Belgian Security Certification Organisation (http://www.bosec.be)
- CRIG – HELMo Combined Institutes Research Centre – (www.crig.be)
- CSTC – Construction Scientific and Technical Centre (cstc.be)
- ERM – Royal Military School (http://www.rma.ac.be)
- IBN – Belgian Standards Institute (http://www.nbn.be/)
- MCI – Ministry of Communications and Infrastructure / Approvals and Specifications Directorate
- UBAtc – Belgian Union for Technical Approval in Construction (http://www.ubatc.be)
- UEAtc – European Union for Technical Approval in Construction (http://www.ueatc.com)
Other European Union countries
- All control, analysis and test organisations and laboratories applying the principle of mutual European recognition
- All European organisations that issue technical specifications, for which a clear and objective equivalence with Belgian specifications can be established
- EFECTIS test laboratory (http://www.efectis.com/)
- CNPP: risk prevention and control expert (www.cnpp.com)
Metal joinery – clauses for specifications Page 11 of 11
29 11 2012