05 - Glass and Aluminium Solutions

1 32. 05. laminated safety Glass laminated Glass is a safety Glass made by laminated Glass laminating two or more sheets of equal or un equal Glass thicknesses with a flexible plastic features and applications interlayer (called PVB poly vinyl butyral). 0 S. afety Grade A safety Glass which meets AS1288. The Glass and interlayer are bonded together by requirements. Depend ing on the severity of impact, will not heat and pressure in an autoclave. Gen erally splinter into jagged dangerous pieces and will remain intact this interlayer is thick for annealed in opening;. Glass but other thicknesses are avail able. 0 C. olour range Wide range of colours and PVB thicknesses in cluding , , , and ;. 0 S. tronger Heat strengthened and toughened laminated Glass enabling larger panels to be glazed with greater resistance to windloading over ordinary annealed Glass ;. 0 C. limate control Solar and thermal control functions through use of tinted, reflective, low-E Glass giving user many performance options.

2 0 S. ecurity Security features which greatly aid prevention of illegal entry and/or vandalism (eg., PVB and SentryGlas Plus interlayers);. 0 S. torm protection (weather/disaster control features) Depending on severity of impact, Glass stays intact in the opening when broken thus preventing damaging ef fects of weather inside building unlike ordinary annealed Glass ;. 0 U. V protection Helps to protect car pets, curtains, and furniture by screen ing out 99% of all ultra-violet light;. 0 F ire protection (fire retardation) laminated Glass though not used on its own as part of a fire resistant glazing, still provides longer evacuation time when compared to ordinary thin an nealed Glass ;. 0 N. oise reduction Noise reduction benefits;. For more details refer Section 16. 0 D. istortion free visually distortion free in annealed form;. 0 A. pplications suited for overhead glazing such as windows directly above doorways, rooflites, skylites and multi storey buildings, where upon impact Glass is unlikely to fall to the ground below.

3 Also suited for doors, internal partitions, side lites, lift wells, balustrading, laminated mirrors in walk through robe situations, wet areas and other areas as required by Australian Standards. Glass performance diagram 0 D. istortion and reflection Due to the controlled nature definitions of the lami nating process, facades glazed with laminated annealed Glass avoid the risk of visible distortions, 0 S. HGC = Solar heat gain co-efficient; providing signifi cantly sharper reflections. These bene fits 33. are dependent on the nature of the final processed product;. 0 U. -value = Thermal insulation properties expressed in watts x m2 per degree Celsius; 0 E. dge delamination/blushing Generally speaking, some 0 V. LT = % Visible light transmittance; degree of edge delamination or edge blush is inherent in most PVB laminated Glass products. Edge delamina tion is 0 V. LR = % Visible light reflectance. usually the result of the breakdown of the bond between the Glass and the interlayer by atmospheric moisture attack, diagram : or sealant degradation.

4 Certain conditions will accelerate or typical laminated Glass make-up retard the manifestation of edge delamina tion, but as a rule edge delamination should not extend more than 6mm for 17# JOUFSMBZFS ordinary annealed laminated and no more than 10mm for heat strengthened or toughened laminated Glass . This extent of delamination does not effect the structural integrity of the Glass . As it is most noticeable when laminated Glass is installed with an exposed edge, if discolouration and edge delamination is a concern, it is recom mended that the edges be fully glazed in a frame or a SentryGlas Plus interlayer be Glass Glass . used. In glazing applications such as frameless balustrading, a stainless steel trim or channel maybe fixed to the edges to cover any delamination. Care should be taken that these trims do not capture water and that the fixing sealant used JOTJEF PVUTJEF is compatible. See page 38 for more information. TVSGBDF QPTJUJPOT 0 S. ilicone, sealants and putty use The edges of laminated Glass should not be exposed to water, linseed oil putties or acid cure silicones.

5 Design and glazing notes 0 I nterlayers: PVB's Standard stocked laminated Glass uses ordering guidelines the same thickness and colour interlayer (generally thick). Only slight colour variation will occur as the over all laminated Glass allows construction of many differ ent Glass thickness increases; types of Glass , processes and thicknesses to suit the user and application. The following section is a guide to constructing 0 H. eat strengthened/toughened: PVB's Heat laminated Glass based on Glass product type used. strengthened/toughened laminated Glass will gener ally require a thicker PVB interlayer than the standard Before ordering, please refer to the following information: thickness. The process of tempering Glass creates some 0 Interlayers and thicknesses;. distortion and roller waves. The Glass is generally not as flat as ordinary annealed Glass . Therefore a thicker interlayer is 0 Sizes;. utilised to adequately bond the Glass and interlayer; 0 Clear float with clear/tinted PVB laminated .

6 0 G. lass panel edges laminated Glass must have good' 0 Tinted float laminated ;. straight clean cut edges with minimal defects. All reflective 0 Reflective coated laminated ;. laminated , vacuum coated laminated Glass and pyrolytic low- E laminated made up with tinted PVB's or body tinted lites 0 Low-E coated laminated ;. should have flat ground edges on all sides as a minimum; 0 Sunergy laminated ;. 0 M. atching Coloured interlayers do not closely match 0 XIR laminated Film products;. tinted floats. This may cause a problem where float and 0 Security Basic Attack Resistance;. safety Glass are required in the same glazing situation. Solutions may include using all laminated Glass or 0 SentryGlas Plus (SGP) High strength laminated ;. laminating the tinted float; 0 Translucent PVB laminated ;. 0 T hermal breakage Tinted, re flective and low-E coated 0 Pattern laminated ;. laminated Glass should have a thermal assess ment carried 0 Vanceva Decorative laminated ;. out to determine risk of thermal breakage.

7 Toughening or heat strengthening will prevent thermal breakage; 0 Toughened laminated ;. 0 Heat strengthened laminated ;. 0 Combination heat strengthened/toughened laminated ;. 0 Automotive laminated . interlayers and thicknesses clear float Glass with clear/tinted PVB's architectural 34 This is the standard stocked laminated product using 2 lites 0 T he following PVB interlayers are available to be laminated of clear Glass with a clear or tinted PVB interlayer. Available as with most types of Glass : finished cut-to-size item or sold in original sheet form for end user to cut-to-size. lear C. See Section 21 for stock size details. Grey Bronze Green Cool blue tinted float Glass laminated Translucent Soft white translucent; Not generally a ready stocked item, but is manufactured as F or standard product types stocked at National Glass , please refer a finished cut-to-size. Most often the user wishes to utilise Section 21. the benefits of laminated Glass whilst still retaining the performance or colour of a body tinted Glass .

8 0 T ypical PVB interlayer thicknesses available for Glass make-up: Tinted float Glass laminated is usually made up with a clear PVB. (though a tinted PVB may be added to further enhance solar 0 .38mm (standard for annealed Glass ) performance or colour). The tinted float is laminated as the outside lite providing optimal solar control. This is also relevant where panels are raked or out of square to avoid colour ;. discrepancies with adjacent panels. 0 T ypical finished Glass make-up thicknesses using 2 lites of equal thickness: 5 .38 reflective coated Glass laminated ;. 0 Some laminates may also have uneven lite thicknesses; pyrolytic reflective Glass . hard coat 0 H. eat strengthened and toughened laminated Glass will generally have minimums of to thick interlayers respectively. A coated reflective Glass surface is now introduced to the laminated Glass make-up. The reflective Glass is generally glazed as the outside lite with the reflective coating itself on surface position #2.

9 This will only marginally decrease performance sizes in terms of heat control. Reflective surface placement on #1. should be avoided due to effects of weathering and pollutants maximum and subsequent cleaning diffi culties. See Diagram 0 T he largest available annealed laminated Glass size is restricted by autoclave size, substrate or base product vacuum coated reflective size and type. The largest size able to be manufactured in Australia is 5100mm x 3210mm. Larger panels are available Glass soft coat on extended leadtimes;. A coated reflective surface is now introduced to the Please refer Section 21 for more sizing details. laminated Glass make-up. Subject to few exceptions, tinted 0 H. eat strengthened laminated and toughened laminated PVB interlayered laminated Glass has the reflective coating on Glass is restricted by toughening furnace specifications and surface position #3. The effect of the tinted PVB is to dampen bed size. the reflectivity where building codes are concerned.

10 Surface position #3 will also en hance the colour of the interlayer reducing the mirror like appearance. minimum See Diagram for surface positions. 0 T he smallest panel of Glass that can be cut from original size sheets is 100mm x 100mm;. 0 T he minimum size for panels with Flat Ground/Polish (straight edges) will be 250mm x 100mm;. 0 H. eat strengthened and toughened laminated Glass sizes must equal 260mm in the diagonal measurement. See page 30. low-E coated Glass laminated 35. pyrolytic low-E Glass . hard coat Adding a Sungate 500 or Sunergy low-E coated Glass to a monolithic laminated Glass make-up provides the option of either surface position #2, #3 or #4 glazing. However, best use is intended with surface #4 placement (see Diagram ). This allows for lower U values or improved insulation properties. Sur face position #2 or #3 placement, though providing some benefits through lower SHGC, provides the same U value performance as ordinary non coated Glass . Place ment of coating will also be governed by energy efficiency building legislation which stipulates a certain level of insulation which can be achieved through surface posi tion #4 placement.