Welguard PVCu Raw Material Specification

Welglaze 70mm Profile

Material	High quality, impact resistant, unplasticised polyvinyl chloride extrusion complies with BS EN 12608 2003
Outer Wall Thickness	3mm nominal
Surface Finish	Stabilised against UV light to prevent excessive colour shift complies with BS EN 12608 when used in the EU moderate climate.

Colour Combinations:
External:	White Cherrywood Light Oak Black#
Internal:	White White White White

External:	Cherrywood Light Oak Green* Blue* Red*
Internal:	Cherrywood Light Oak White White White
	#excludes patio door *single door leaves only

Glazing Thickness	28mm
Glazing Method	Internal co-extruded J-bead with low-profile gasket.
Weatherseals	TPE conforming to BS 4255 part 1 1986
Drainage	Face or concealed by means of separate drainage chamber to ensure isolated drainage.
Reinforcements	Galvanised steel to BS 2989 1982 Mill finished alloy grade 6063 T6 to BS 1474

Physical properties of PVC-U material used in Welglaze 70mm windows and doors

Sound Insulation	30db minimum
Thermal Conductivity	Typical test value 0.16 W/M° C when tested at 20° C . PVC-U has a low thermal conductivity , and is virtually constant over a wide temperature range.
Heat Reversion	To BS EN12608 clause 5.5 (Test method: 1 hr at 100° C ). When tested in accordance with appendix E, the mean maximum reversion value for individual samples shall not be greater than 2% for profiles and 3% for glazing beads. The variation between individual face sides of the same sample shall not be greater than 0.4% for profiles and 0.6% for glazing beads.
Heat Ageing	To BS EN12608 clause 5.7 (Test method 3 mins at 150° C). When tested in accordance with appendix F, the profile shall show no bubbles, cracks or de-lamination.
Resistance of impact at low temperature	To BS EN12608 clause 5.6 class 2. (Test method: 1kg from 1.5 metres at -10° C). When mainframe, subsill, casement and sash profiles are tested in accordance with EN 477, no more than one sample shall exhibit cracking through the entire wall thickness of the profiles on either face.
Heat resistance/ Softening point	To BS EN12608. When tested to ISO 306 method B. Minimum vicat 5kg softening point 75° C . Typical result 82° C. This is well above the requirements of UK and German specifications.
Apparent Modulus of Elasticity	To BS EN12608 minimum requirement 2200 mpa value, when tested to IOS 178. Typical result 2350 mpa.
Colour Fastness	After exposure in accordance with EN 513 moderate EU climate zone the change in colour between the unexposed test specimens expressed in D E* shall not be >5 & D b* not >3. The determination of the change in colour is in accordance with EN 513.
Bulk Density of Powder Blend	Typical test value 0.63 - 0.64. Minimum requirement: None Specified.
Specific Gravity or Profile	Typical test 1.446 6ms c.c Minimum requirement: None Specified.

General Testing of the window system to the Standard BS 7412 by the system supplier.

Construction	Clause 5 BS 7412	Glazing BS 6262
Security	Clause 8 BS 7412	BS 8220: Parts 1 & 2
Safety	Clause 9 BS 7412	BS 8213: Part 1
Air Permeability	Clause 11.2 BS 7412	BS 6375: Part 1 1989
Watertightness	Clause 11.3 BS 7412	BS 6375: Part 1 1989

Performance Testing of the window system

Windows	Windows perform to BS 6375 Parts 1 & 2 when tested in accordance with BS 5368: Part 1 (Air Permeability), Part 2 (Watertightness), Part 3 (Wind Resistance). The window system complies with BS 7412
Wind Resistance	Clause 11 4.1 BS 7412 (Tested in accordance with clause 7 BS 6375: Part 1)
Operation and Strength	Clause 12 BS 7412 BS 6375: Part 2
Functionality	Clause 10 BS 7412.
Doors	Residential doors perform to BS 6375: Parts 1 & 2 when tested in accordance with BS 5368 Part 1 (Air Permeability), Part 2 (Watertightness), Part 3 (Wind Resistance). The window system complies with BS 7412
Maintenance	Abrasive materials are not recommended. PVC-U cream cleaners/mild non-abrasive detergent solutions used regularly are recommended. Application of light oil will maximise life of exposed hardware and fittings.

Welguard Technical Drawings PVCu Window

Welguard Technical Drawings Residential Door

Inward Opening Door Outward Opening Door

Welguard Technical Drawings PVCu Tilt & Turn Window

Welguard Technical Drawings PVCu Vertical Sliding Sash Window

Note: All dimensions shown are in millimetres.

Welguard PVCu Size Limitations

PRODUCT SPECIFICATIONS	SIZE LIMITATIONS	W x H mm
Casement Window - internally glazed Sculptured glazing bead. White, Sherwood, Cherrywood or Wood effect on white finishes Security tested hardware option	Top hung vent Side hung casements	Maximum vent weight 40Kg Maximum vent height 1300mm Maximum vent weight 24Kg Maximum vent width 700mm
Residential Door - open in & open out Internally glazed Sculptured glazing beads White, Sherwood, Cherrywood or Wood effect on white finishes Security tested hardware option French door option Low aluminium threshold option	Single door French doors	1000 x 2200 1900 x 2200
Tilt & Turn Window Internally glazed Sculptured glazing beads White, Sherwood, Cherrywood or Wood Effect on white finishes	Tilt & turn windows	1600 x 1600

Vertical Sliding Sash Window Internally glazed White only Horned Sash option	.	1550 x 2200