Delta Combi AL BW2 Double Balcony Window
Product Specification
BW2 - Double side hung outward opening windowon butt hingesFeaturesBW2 are double side hung outward opening windows aimed at low pedestrian traffic situations. They are specially designed for use as a balcony access with standard or low level thresholds. Large clear opening to ventilate room and with easy access to clean. 
Hardware
BW2 windows are fitted with PN-Galvanised steel butt hinges from high grade steel. It is galvanized to create maximum protection against corrosion and can be colour matched to frame if required.
 
The mechanism is special developed for the UK market and meets UK demands for strength and function to BS 6375: part 2 1987 – BS7950: 1997, sec. A6
 
Locking system - EspagnoletteSupplied from FIX AB the Espagnolette system with minimum two point locking and with added dual position keep, allowing controlled ventilation on the active leaf. Flush bolts top & bottom on the slave
leaf. The system is tested according to SS3535 confirming espagnolette and receivers are produced from a corrosion resistant material with an extra protective chromated layer. The Espagnolette
has been tested to a 50,000 open-close cyclic test for enhanced performance and minimum maintenance. 
HandleAs standard a cranked HOPPE London non-lockable handle 013LVK-300KL-1UG) No external handle as standard, although an external fingerpull (ref. no BPK430) can be fitted upon request at additional cost. In addition Beslagpakets types 1-6 can be
provided. These give additional options for thumbturns internally, locking cylinder externally and externally handles. 
ConstructionDouble tenon corner joints in the timber profile with the option to add mullion and transom configurations, creating split glazing areas
 
The integrated aluminium and timber composite perimeter frame is mechanically connected with mitred and crimped corners. The sash frame aluminium section being continuously retained around the timber sash in an extruded and mechanically fixed carrier frame. 
Frame sizesThe windows are manufactured from European FSC certified timber. The softwood is carefully chosen and sawn before kiln dried to approximately 14% water content. Thereafter the timber cut, finger jointed together to create a straight piece of timber with no knots. All frame depths can be delivered in 100mm, 115mm (standard), 130mm or 145mm (not valid for low level solutions) for constructional strength. 
SealingSealing is achieved by a continuous single gasket, or double gasket for enhanced performance. The gasket is compressed into a rebate by the sash frame ensuring maximum compression and weather tightness when subjected to severe weather conditions. 
Restrictors
For security reasons the hinge system has a built in FIX 90 degree restrictor/friction brake. Optional change to FIX 180 degree restrictor at additional costs. Option to fit FIX restrictor to slave leaf at additional costs. 
Trickle vent
The adjustable standard Titon hi-lift trickle vent system is positioned at the underside head of the frame to make the maximum out of fresh incoming air. The ventilator is concealed from the outside by an external hood/drip detail incorporating an
integrated inset mesh. Delivered in White, Silver, Gold or Brown.
Factory finishOur internal standard colour range is:
White - RAL9010
Clear lacquer – T.M. 7130
Mahogany – T.M. 1530
Pine – T.M. 367
Alternative any standard RAL colour (not metallic) is available.
 
The paint is a 3 layer water based paint and with a total of ~110 micron (dry) it will ensure a maximised durability in many years if the windows are regular maintained.
 
External aluminium finish. External aluminium cladding coatings:
1) Polyester powder coating Minimum 60 micron thickness
standard in any standard RAL colour available (excluding metallics).
Standard Gloss 30% (optional 77% gloss upon request)
2) Anodised finishMin/max 25/35microns in our standard colour range
Natural Silver (optional Bronze or Champagne upon request).
PerformanceThe windows have been tested to meet the following requirements;
BS6375: Part 1: 1989 Performance of windows – Classification for
weather tightness
Air permeability 300pa (single gasket) 600 Pa (double gasket)
Water Penetration 300pa (single gasket)600 Pa (double gasket)
Wind resistance 1200 pa (single gasket) 2000 Pa (double gasket)
Exposure category 1200 pa (single gasket) 2000 Pa (double gasket)
 
BS6375: Part 2: 1987 Performance of windows – Specification for operation and strength characteristics. 
Thermal insulationThe thermal simulation ensures compliance to British and Scottish standards. Calculated U-values as stated for each window type on the final factory order confirmation can be requested.
 
Our low-E argon filled glass units (4-20-4) create a U-value of app. 1.70 W/m2/K (Double glazing) and 1.50 W/m2/K (Triple glazing). Precise figures varies dependant upon glazing specification, size etc.
 
The same specimen with 6,4mm laminated glass created a U-value of 1.61 W/m2/K. 
Design standardsDelta Combi AL – BW2 comply with following standards:
BS644
BS942
BS952 part 1-2
BSEN 12150
BSEN 1279 part 2
BS7950
BS6375: part 1
BS6375: Part 2
BS8417
BS4255
BS1186 part 2
BS8000 part 7
BS6262
BS8213 part 4
BSEN 1026
BSEN 1027
BSEN 12211
 
Service life time 30 Years life expectancy against deterioration (Rot and fungal decay) according to BS8417

Warranty10 Years - Glazing failure
10 Years - Paint finish on factory products
10 Years - Ironmongery
10 Years - Manufacture defects
6 Years - Stained factory finished products
 
(Subject to the standard terms and conditions stated within operation and maintenance manual issued by INWIDO UK LTD).