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IGUnit Glass  
   

Architecture is the learned game, correct and magnificent, of forms assembled in the light.
-- Le Corbusier

 
       
 

or Double Glazing is described as two or more lites of glass spaced apart and hermetically sealed to form a single glazed unit with an air gap between each lite.
As the name suggests, the most important function of and IGU is to improve the thermal performance of glass when used in architectural applications. It is common to find two panel of glass and they are therefore also referred to as double glazing units. Triple glazing are rare but serve their owners well in very cold climates. Insulated glazing may be framed in a sash or frame. IGU made of glass is called insulated glass.

A more technically correct term, though, is insulating glass, since the glass itself has no insulative properties. It is actually the air space between the glass layers (lites) that provides the insulative qualities. The air space between the lites may be filled with air or an inert gas like argon or krypton which would provide better insulating performance.

Typically the spacer is filled with Desiccant to prevent condensation and improve insulating performance. (Desiccant is a hygroscopic substance that induces or sustains a state of dryness (desiccation) in its local vicinity in a well sealed container.) Less commonly, most of the air is removed, leaving a partial vacuum, which drastically reduces heat transfer through convection and conduction. This is called evacuated glazing. Often the insulating quality is used in reference to heat flow where the gap between glazed sheets is the insulating medium. The air gap between the panes is generally between 8mm to 22mm thick.

The thickness has a substantial impact on the insulating properties. A 16mm air gap is considered the optimum thickness and is usually recommended by most users. Insulated glass may not be cut to size in the field like plate glass but must be manufactured to the proper size in a shop equipped with special equipment.

   
  • Spacer performs the role of keeping the glass panes apart as well acts as a housing for the desiccant.
  • Desiccant or the drying agent performs the most important role in an IGU; that of absorbing the moisture from the hermetically sealed space.
  • Silicon Sealant is applied on the outside of the unit. It performs several roles, chief among them of providing structural strength.
  • Butyl Sealant is the first line of defence for the hermetic seal.

There are many benefits of utilizing insulated window and door products in your home. They not only lower oneís energy costs, but also make homes cozier by improving comfort, decreasing condensation, as well as, diminish the effects of fading. Insulated units are also highly effective in reducing unwanted sound transmission.

In the summer, heat is transmitted through the glass and is absorbed by the walls, furniture, floors, etc. By using window and door products with a low solar heat gain coefficient, the solar radiation coming into oneís home is decreased. This reduces the amount of heat entering the home, thereby improving oneís homesí comfort level and lessening the amount of energy needed for cooling during warm weather months. Moreover, during the cooler seasons, or in mountain climates insulated products create warmer interior glass surfaces, reducing frost and condensation from forming.

Another benefit is that during daylight hours, sunlight is transmitted through the glass and is absorbed by the walls, furniture and flooring. Many materials, such as carpet, curtains, upholstery, artwork and wood may fade upon exposure to sunlight. Window glass selection influences the type and intensity of ultraviolet (UV) rays, which causes fading and degradation.

The heat and sound insulation of glazing may also be improved through the use of a film or coating applied to its surface. This film is typically made of polyester or metal, and may give a reflective appearance and one-way mirror effect to the window, and may improve both heat and sound insulation. This may be used on single-glazed windows as an alternative to insulated glazing, or on the outside layer of insulated glazing to further improve its effectiveness. Such coatings may reduce fading of fabric and improve safety in the case of breakage.

Secondary glazing is sometimes used as a cheaper alternative. This consists of a layer of glazing placed retrofitted inside the window, to provide sound and heat insulation. Plastic sheet may be used for heat insulation, but may only last for one season.



Key Performance Requirements

Thermal Insulation:    The primary reason for using IGUs is to cut down on thermal heat coming from outside. Thermal insulation primarily depends upon the dryness of the air inside the IGU, as well as the quality of the hermetic seal. Working Principle: IGUs work on the principle of reducing conduction and convection heat transfer across the unit. Dry air is a poor conductor of heat. Due to the air-gap, the conducted heat through glass is reduced significantly as it reaches the second pane.

Structural Strength:    IGUs are typically extremely heavy. For example a 2m x 1m IGU using 6mm +4 mm glass weighs around 60 kg. Additionally in certain applications like structural glazing, IGUs often act as structural members of the building. It is paramount that the strength (direct and shear strength) of IGUs is maintained. This strength is primarily a function of the type of spacers, number of spacer joints, type of spacer joints (corner joints Vs side joints), type & quality of the secondary sealant, and adequate quantity of the secondary sealant.

Fogging IGUís:    Provide better protection against fogging than a single pane of glass. However, IGUís made without proper quality control, poor desiccant filling practices, inadequate quantities or incorrect type of desiccants, or a poor hermetic seal are more prone to fogging.



Key quality areas

Appropriate Type & Quantity of desiccant:    Desiccants perform the most important role of absorbing moisture and keeping the air inside the IGUís dry. The glass processor must use the correct type and quantity of drying agent inside the IGU. Not using the correct quantity or type of desiccant is one of the ways for a glass processor to significantly cut costs by cutting corners.

Appropriate Type & Quantity of Desiccant:    The main issue is that the drying agent should never make contact with ambient air during the process of filling the desiccant inside the spacers. As soon as the desiccant makes contact with air, it starts absorbing moisture reducing life cycle performance.

Number of joints in the Spacers:    Ideally the spacer should have no joints. Joint-less spacers are structurally stronger. However, cost & performance tradeoffs require that an automatically bent spacer system in a single piece assembly with one side joint be used. Many processors use 4 corner joints for the spacers. This reduces the structural shear strength of IGUís. The practice is not allowed by many European standards.

Enclosed Environment:    IGUís should be made in an enclosed & conditioned environment; ideally at a relative humidity of less than 62% and an ambient temperature of less than 24 C. This prevents excess moisture being absorbed by the IGUís during production, as well as prevents dust from entering the units.

Secondary Sealant Quantity:    The secondary sealant along with the spacer provides the unit with rigidity. The gap between the spacer and the edge of the glass pane that controls the amount of secondary sealant to be filled should be appropriate for the size of the insulated glass unit.

Equipment:    IGUs should be made using the proper IGU manufacturing line. A manually made IGU by sticking 2-panes together will not perform over the lifecycle of glazing.

Spacer Thickness:    All our IGUs are made in accordance with local requirements and exceed the expectations of our customers and specifiers. 6, 8, 10, 12, 15, 18, 24mm available in stock.

 
 
 
 
 
 
 
 
 
     
 

Float Glass

 

Is the most cost effective option because the features of this type of glass are rather basic. Float glass refers to a completely flat plane of clear glass. The term float is derived from the production method, and this type of glass is also often referred to as flat glass.   Get the answers on your questions on double glazed float glass on this page

 
     
 

Toughened Glass

 

Also known as tempered glass, it is a type of safety glass that has increased strength and will usually shatter in small, square pieces when broken. It is used when strength, thermal resistance and safety are important considerations. At home you are likely to find toughened glass in the shower and sliding glass patio doors. For commercial structures, it is used in unframed assemblies such as frameless doors, structurally loaded applications and where there is a danger of human impact. Toughened glass is typically four to six times the strength of annealed glass.   A complete guide for double glazed toughened glass can be found here

 
     
 

Laminated Glass

 

Is a sandwich made of one thin layer of plastic Poly Vinyl Butyral between two or more sheets of glass. The PVB sticks with the glass, forms chemical as well as mechanical bonds. When laminated with annealed glass, the layer maintains the geometric integrity of the pane in case of breakage.
Also, it gives acoustic insulation as well as providing protection against damage caused due to UV radiation because it cuts almost 99% of UV radiation present in the sunlight.   Great suggestions and more on double glazed laminated glass can be found here

 
     
 

Tinted Glass

 

Ordinary tinted glass is popular because it reduces heat gain and carbon emmissions, although it also marginally reduces visible light transmission. High Performance or Low-e tinted glass or spectrally selective tinted glass reduces solar heat gain to below that of ordinary bronze/ gray tint but has a visible transmittance closer to clear glass. The tint has little effect on the U-factor but reduces solar gain considerably, which can reduce the need for air conditioning in the summer. Tinted glass is useful in controlling glare - especially for those windows facing east or north east. Return the sunlight not glare into your home.   Continued on the double glazed tinted glass page

 
     
 

Low E Glass

 

Low-e glass brings out the best that technology has to offer for improving your views and comfort! A cool, metal oxide coating is applied to clear or tinted glass, so that the appearance and performance are the same regardless of glass thickness. Low-e glass is recommended by many energy efficiency experts as a result of high performance combined with aesthetics. Low-E glass typically cost about 15% more than ordinary glass, but they reduce energy use by as much as 30-50%, by using most of the heat gain in winter but keep the harmful UV rays out during the summer, and when used in insulated glass units - can have even better benefits.
For hot climates, low-E coating should be applied to the outside pane of glass. If the windows are designed to provide heat energy in the winter and keep heat inside the house typical of cold climates, the Low-E coating will maximise benefit by being on the inside pane of glass.   For more information double glazed low e glass

 
     
 

Glass Warranty

 

Irrespective of the type of glass you choose for your windows and doors, you will be reassured of high quality through our warranty committment to you. All the glass we use in our windows and doors comply with Australian standards. We will repair or replace the insulated glass unit found to be defective within the applicable period and in accordance with the purchase contract.   Examine all the facts on double glazed glass warranty page

 
     
 

Double Glazed Windows and Doors

 
       
  0412 717 066  
  info@windowfactory.com.au  
 
 
     
 

Composite Door

 

The Composite Door is gaining in popularity with great speed for clients wanting noise insulation, strength, durability and security. All our Composite Doors contain a solid interior, which is made with reinforced materials, allowing our clients to gain increased security over even a solid wooden door, and will no doubt keep the insurance provider pleased. Composite doors are extremely strong, so they don't buckle, dent or warp, because they are designed to look better and provide more security for a longer period, than wooden or glass alternatives, yet they are very price competitive. The surface contains a glass reinforced polymer material and will not fade or lose colour. Additional feature includes advanced properties that shield from the weather, to ensure you have value for money in a door that lasts for decades, not just a few years.   Additional information on double glazed composite door can be found at this location

 
     
 

Awning Window

 

Double Glazed Awning Windows allow the window sash to swing outward rather than inward or up and down, so they can be located in may places around the home and easily arranged next to other window types. The awning window is the ideal window type for homes in the temperate climate zone, or homes that are positioned to take advantage of natural ventilation or breeze. Double Glazed Awning windows are made with compression and weather seal and provide higher air-tightness, energy-efficiency and acoustic insulation than other window types such as sliding and double-hung windows. Double Glazed Awning windows have a variety of applications due to their versatility and durability, and are particularly attractive option for contemporary homes because our Awning windows are manufactured locally to an indisputably imposing standard, impressing even the most discerning clientele.   A complete guide for double glazed awning window can be found here

 
     
 

Sliding Door

 

for a natural and continuous entry into the outdoor entertaining area, which defines any modern home, choose Window Factory Double Glazed Sliding Doors. Functional, intelligent and convenient are the defining characteristics of our Double Glazed Sliding Doors. All our doors are quipped with high quality hardware for effortless opening and closing enhance all these aspects. We combine efficient technology for Double Glazed Sliding Doors with sophisticated design creating that indispensable convenience for your home. Popular with contemporary homes, our Sliding system offers additional benefit of saving space and when used with mirrored glass, can even serve as a room divider for guest privacy.   For more information double glazed sliding door

 
     
 

Side Hinged Window

 

A meticulously controlled work process allows increased speed and economies of scale advantage in production and assembly. The design elements in the classic Side Hinged Double Glazed windows are sometimes subdued, but fundamentally enriching - aesthetically and through improved comfort. The classic design allows to emerge important elements such as a strong sense of mass, structural legibility and strength with clear proportional relationships between solid and void. Side Hinged windows are similar to Casement windows, but open out and provide the highest possible acoustic and thermal insulation. Side Hinged windows are uncomplicated and cost-efficient, and when combined with our double glazed units, and offer exceptional improvements in performance when compared against ordinary aluminium or wooden windows. With architect's help, the Side Hinged Double Glazed windows will no doubt encourage inhabitants or users to gain architectural delight from their serendipitous journeys throughout the home.   Great suggestions and more on double glazed side hinged window can be found here

 
     
 

Casement Door

 

The Casement Double Glazed Door is essentially a single panel double glazed hinged door that has one panel swinging in or out. This style is our best performing Double Glazed Door against wind, rain, fire, and even snow, the casement style is energy efficient and practical, which will have an instant impact on your home. This product is suitable for both internal and external uses and is also available for specialised commercial and architectural applications.   A complete guide for double glazed casement door can be found here

 
     
 

Sliding Window

 

Our Double Glazed Windows are more than just apertures for light and ventilation - they can be a major spectacle offering a connection to heaven and earth. Functional, intelligent and convenient are the defining characteristics of our Double Glazed Sliding Windows. All our windows are quipped with high quality hardware for effortless opening and closing enhance all these aspects. We combine efficient technology for Double Glazed Sliding Windows with sophisticated design creating that indispensable convenience for your home. Popular with contemporary homes, our Sliding system offers additional benefit of saving space and when used with mirrored glass, can even serve as a room divider for guest privacy.   Continued on the double glazed sliding window page

 
     
 

Bay Window

 

Nothing can maximise cross ventilation without crating a draft like Bay Windows. They are more than just a period feature - when strategically placed they can replace air conditioning and provide a lovely feature for your home. They also make the room feel more spacious and appear larger, so they have been known to increase the value of a property. Typically, the bay windows are very large, even covering almost the entire distance from floor to ceiling. The effect of prolific natural light and stunning outdoor views from any angle in the room can be filtered or softened with window treatments.   More info on double glazed bay window

 
     
 

Tilt & Slide Door

 

Our Double Glazed Doors are more than just apertures for light and ventilation - they can be a major spectacle offering a connection to heaven and earth. With the right advice about placement and size, our Double Glazed Tilt and Slide Doors can improve comfort, utilize daylight and natural ventilation for improvement in overall health and well being. Window Factory Tilt and Slide Doors are the most innovative and attractive deck/ garden or balcony doors available. Not only do they boast the tilt option of other popular styles, but the Tilt and Slide Doors were also designed to maintain our reputation for high performance.   For supplementary material on double glazed tilt & slide door click here

 
     
 

French Door

 

Make a grand entrance to your outdoor living area and impress your family and friends with our traditional and carefully crafted Double Glazed French Doors that add charm and elegance to any home! Double Glazed French Doors open and close like conventional doors, and with an outswing design can save interior space, where it is limited. Combine with a wheelchair accessible threshold, a sidelight/ fixed panel or colonial bars that add the classic look of divided light, and Double Glazed French Doors will become a stunning feature of your home!   More info on double glazed french door

 
     
 

Casement Window

 

Casement windows are an excellent choice for consumers concerned with acoustic, thermal and safety performance. The difference is obvious at a glance - the frame and sash look sturdy and substantial when compared to ordinary aluminium and wooden windows. You can have a beautifull home, but if you install inexpensive windows, the strucure of the home can feel cheaply built.   Get all the facts on double glazed casement window

 
     
 

Sizes and Dimentions

 

The total cost of delivery is directly related to the sizes and number of double glazing items in your order. If any of your double glazed windows or doors exceed a certain level in either height or width, we must use a bigger truck, which will raise the cost of delivery, even if you have only a single double glzing item. The first delivery level is 4m wide; the second delivery level is 6m wide. Of course, we always stack the items in a most efficient way to save space.   Get all the facts on double glazed sizes and dimentions

 
     
 

Euroslide Window

 

The all-round customer-friendly double glazed products offer an enhanced appearance as well as superior fabrication ease and performance. Together, the advanced form and function of sliding window system ensure lasting high quality, simple installation and satisfied customers. The Rehau Euroslide Design can be used to make a wide variety of upvc sliding double glazed windows and doors. Three main categories of pvcu window and door design can be fabricated.   More info on double glazed euroslide window

 
     
 

Colours

 

We appreciate the need to live in harmony with one's surroundings, both architecturally and environmentally, that is why our extensive range of colour combinations attracts many professionals seeking the combination of an eclectic colour range with a cutting edge technology. Our double glazed window and door colour profiles can be manufactured so that the profile beneath the veneer is not white, but has been made to match the veneer colour. The advantage of this method is, that in the event of an accidental damage to the surface, white fragments will not be visible and the double glazed window or door retains its original aesthetic appearance. Read more on double glazed colours.   To obtain additional information on double glazed colours

 
     
 

New Construction

 

Installation of Double Glazed Windows in new homes or buildings is usually performed by the builder and his team, however, we are prepared to quote and provide an installation service if required. Installation fee is calculated on a per item basis and depends on the size and quantity of the items. The installation quote ordinarily includes glazing, but we can also provide a quote for installation excluding glazing, or a glazing only installation - we are flexible and understand that client circumstances vary.   For more information double glazed new construction

 
     
 

Delivery Areas

 

Delivery of double glazed windows, doors and products within 100km of the Sydney Metropolitan Region does not attract a fuel surcharge. If your order is comprised of only a few double glazing items, we can operate a multi drop delivery system to save you money. This method allows us to service multiple customers in the same area who share the truck and the delivery cost. This is optional and customers who have urgent needs for delivery of their double glazed upvc windows and doors can always opt for a direct delivery. Check the Delivery Schedule page for more information.   Examine all the facts on double glazed delivery areas page

 
     
 

Euroslide Door

 

The all-round customer-friendly double glazed products offer an enhanced appearance as well as superior fabrication ease and performance. Together, the advanced form and function of sliding window system ensure lasting high quality, simple installation and satisfied customers. The Rehau Euroslide Design can be used to make a wide variety of upvc sliding double glazed windows and doors. Three main categories of pvcu window and door design can be fabricated.   Additional information on double glazed euroslide door can be found at this location

 
     
 

Profile Systems

 

First impressions count and every effort has been taken to achieve the correct balance between form and functionality - visual appeal and practicality. From the strategic positioning of hardware, unrivalled surface finishing quality to the colour options - the Rehau Prestige Design leads the market in double glazed windows and door systems. Rehau is a German plastics manufacturer with world class facilities and unlimited polymer solutions. Get all the facts on double glazed profile systems.   Greater detail on double glazed profile systems can be found here

 
     
 

Measuring Your Window

 

The most important part of the installation procedure for double glazed windows and doors, comes before you even order your windows. It is critical that you measure your old window opening properly and accurately. Pvc double glazed windows and doors are custom-built and can't be returned if the size ordered was inaccurate. This is why for all replacement windows and doors and some new constructions, our trained technicians will take their own measurements before manufacture. All of our double glazed windows and doors are manufactured to a high accuracy, so ideally you should get the closest fit possible.   Greater detail on double glazed measuring your window can be found here

 
     
 

UV Resistance

 

We only use quality extrusion that has been rigorously tested for UV radiation in harsh environments in desert or mountain conditions. The profile has been specifically formulated for Australian conditions to thwart potential damage from the sun. Un-reinforced uPVC window profiles have a lack of rigidity and a high coefficient of expansion. To avoid preventable damage, we always reinforce all our windows and door frames with aluminium or steel, according to customer requirements.   A complete guide for double glazed uv resistance can be found here

 
     
 

Delivery Schedule

 

Double Glazed Windows and Doors strive to deliver your order of double glazed pvc products in the shortest possible time to maintain high standards of service and efficiency. Normally delivery occurs 2-6 weeks after order, at an agreed date, however delivery times are dependent on size & complexity of your order as well as your location. Customers are also welcome to make their own arrangements to pick up the double-glazed windows and doors from our pvc window and door manufacturing facility.   Get all the facts on double glazed delivery schedule

 
     
 

High Performance

 

For windows and doors that do more than just open and close, but actually work for you to reduce your household or office energy bill by utilizing an energy efficient profile system and double glazing. Convenient and comfortable in many ways, they are an essential part of insulating your home or office, for a more sustainable living experience. A standard aluminium sliding window can add 40% heating/ cooling loss in the home. Would you purchase an appliance that can only ever operate at a maximum 60% capacity? But this is essentially what you are doing when your home is poorly insulated! The same high performance extends to acoustic insulation, with a potential reduction of 45dB in our casement, awning, tilt&turn and bifold range. The high-tech weather seal in combination with fusion welding of frames and sashes make the windows completely air and water tight - they have been tested to withstand even cyclone strength winds!   For a detailed discussion on the subject of double glazed high performance click here

 
     
 

High Quality Hardware

 

Hardware is an integral part of the window without which the window would not function, and would not open. Quality hardware is essential for smooth operation, especially if double glazing in involved, which can significantly add to the weight of the window or door and fracture any inferior hardware, rendering the window unsafe. After performing many repairs on windows supplied by our competitors, we decided to make our window hardware a point of difference. We sourced hardware among the worlds leading suppliers, for very specialized, high performance applications to ensure that our clients are not disappointed with any aspect of the window or door. Our accomplishment as leaders of innovative solutions for complicated or difficult projects, and our creative cooperation with window hardware suppliers, has created a upvc hardware combination of unsurpassed quality, tested to withstand min of 20,000 cycles and guarantees flawless operation for the users for many years.   Examine all the facts on double glazed high quality hardware page

 
     
 

Double Brick

 

Awning windows have both federation and contemporary architecture applications. Our windows are more than just apertures for light and ventilation - they can be a major spectacle offering a connection to heaven and earth. With the right advice about placement and size, our windows can improve comfort, utilize daylight and natural ventilation for improvement in overall health and well being.   Great suggestions and more on double glazed double brick can be found here

 
     
 

Factory

 

Double Glazed Windows and Doors' focus is to keep the costs down - and this is transferred to the client in form of lower prices. Our staff are constantly maintaining and improving our processes for maximum automation and efficiency to maintain leadership and set high standards in the double glazing industry. In order to compete on price, Double Glazed Windows and Doors have created a lean business, and due to almost complete automation using high tech machinery, a considerably better class and value double-glazed product. Continued on the double glazed factory page.   Get all the facts on double glazed factory

 
       
 

Double Glazed Windows and Doors

 
  0412 717 066  
  info@windowfactory.com.au