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Windows - Specifications
Courtesy Smart Systems Ltd

Alitherm 47 Windows

Designed for use as fixed lights and open out windows, internally or externally beaded, for domestic and light commercial applications.
Thermal breaks are formed with polyamide strips PA 6.6 25 reinforced with glass fibre, fitted between aluminium extrusions.
All profiles are extruded from aluminium alloy 6060/6063 T5/T6 and comply with the recommendations of BS EN 12020-2; 2001/BS 755-9: 2001.Profiles can be Electrostatic powder coat finished in a range of RAL colours to APA Qualicoat guidelines with the option of BI-colour, different internal and external colours. Other finishes include anodised in satin or bronze colours with EWAA/EURAS-Qualanod quality label. Powder-coated woodstructure finishes are available on request.
All opening vents are hung on concealed stainless steel variable angle friction stays and fitted with cockspur/espagnolette/espagnolette shoot bolt locking mechanisms.
Restrictor stays are fitted on all vent openings, manufactured from material meeting the requirements of BS 4873.
Glazing conforms to the requirements of BS 6262 and Part ‘N’ of the Building Regulations for both thickness and type.
Internal or external beads and gaskets will accommodate 24mm, 28mm and 32mm units.
Windows are manufactured according to customer requirements from a range of standard profiles and are designed to incorporate a range of vent openings and various options, therefore it is advisable to contact Smart Systems technical design department early in the design process.
Product tested to BS 6375: Part 1. Weather Tightness classification:
Air Permeability – Class ‘C’.
Water Tightness – 600pa.
Wind resistance – 2400pa
Windows are manufactured to the required design to within the following maximum limitations (subject to location).
Side opening – Max width 700mm. Weight limit dependant upon gear and profile selection.
Top Opening – Max height 1200mm. Weight limit dependant upon gear and profile selection.
Subject to agreement it is possible to exceed these limitations depending on design criteria, contact Smart Systems Technical Department for details.
Consult Smart Systems Ltd technical literature for details. Smart Systems Ltd can also provide design and specification guidance and it is recommended that they are consulted early in the design process.

Manufacturer:Smart Systems Ltd. North End Road. Yatton, Nr Bristol. BS49 4AW. Tel: 01934 876100.sales@smartsystems.co.uk Web: www.smartsystems.co.uk
Product reference: Alitherm Series 47 Windows
Materials: All profiles are extruded from aluminium alloy 6060/6063 T5/T6 and comply with the recommendations of BS EN 12020-2; 2001/BS 755-9: 2001. Thermal breaks are formed with polyamide strips PA 6.6 25 reinforced with glass fibre sections capable of withstanding temperatures up to 200°C for overpainting.
Performance:The windows to provide weather tightness as defined by BS 6375 Part 1. (Air Class ...... , Water ...... Pa and Wind ...... Pa)
Exposure:Design Wind Pressure of ...... Pa.
All windows, in conjunction with a suitable glazing specification, to achieve an average project U-value to meet the current requirements of the approved Building Regulation Document L1/L2 for England and Wales.
Target window U-value to be ........ W/m²K.
Details/evidence of all calculations/methods of determining the required project average U-value for windows and doors, to be submitted with all tender submissions for approval.
All references to Document L1/L2 for England and Wales' should be substituted with 'Document J for Scotland’ and ‘Document F for N.I.’ where applicable.
Structure: All structural profiles to be designed so as the maximum deflection of any glass edge into a framing member under wind load shall not exceed L/175 of its span with no evidence of any permanent deformation once the load has been removed. All horizontal framing members to restrict dead load deflection to L/400, up to a maximum of 3mm.
All windows shall be manufactured, installed and glazed in strict accordance with Smart Systems instructions and guidelines as set down in the appropriate technical literature, details and specifications.
Minimum depth of outer frame sections shall be 47mm incorporating two 20mm or 22mm polyamide thermal break sections within the window profiles.
All outer frame and vent members to be 45° mitred corner construction, reinforced by means of extruded aluminium cleats and stainless steel corner braces.
All corner joints to be secured by gluing & crimping.
All mullions and transoms to be cut/shaped and secured using either stainless steel screws driven into integral screw ports within the sections or cruciform cleats.
All joints to be sealed during construction using suitable 'small gap' sealant.
The windows to incorporate an internal pressure equalized drainage system with concealed down drainage through a sub sill or frontal drainage with snap on cover caps.

Finish as delivered:
Internal colour: Insert RAL/BS or anodised reference. Consult with Smart Systems for availability of colours and to obtain samples.
External colour: Insert RAL/BS or anodised reference. Consult with Smart Systems for availability of colours and to obtain samples.

Glazing details: Glazing shall be factory fitted / Site glazed as section L40.
Windows shall be double glazed and externally/internally beaded.
Unit thickness. Double glazed 24mm, 28mm and 32mm.
All windows to be dry glazed using shuffle extruded aluminium beads and EPDM extruded gaskets.

Ironmongery / Accessories:
Consult with Smart Systems for details of the standard ironmongery range and options.
Glazed in trickle vents.
Smart Systems Fly screens.
For details of Fly screens, refer to Smart Systems NBS Plus entry in section L10/210
90° fixed and variable angle couplers.
Variable couplings for joining modules.
Window sill profiles in various depths.

All fixings to be in strict accordance with the relevant British Standards, including BS 6262, and shall ensure the window is retained securely within the opening without incurring any damage or distortion to the window frame.
Generally, fixings to be positioned 150mm from each corner and each mullion/transom and at centres not exceeding 600mm.
Fixing lugs/straps only to be used where they can be suitably concealed to approval.
All fixing of windows to the supporting structure to be achieved using a suitable lug and/or frame anchor fixing method capable of accommodating all applicable loads, deflection, tolerances and expansion expected on site. Details of the proposed fixing method shall be submitted to the project engineer for approval prior to installation.