Acoustic Windows and Doors Bifold Window

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        Bifold Window  
             
        K=1.80 W(M2.K) Thermal  
        Rw = 44dB Sound Insulation Rating  
        qo = 0.76M3/h.m Air Infiltration  
        ΔP=300Pa Water Penetration  
        Positive= 3.5kPa Ultimate Strength  
        Negative= 3.5kPa Wind Presure  
     
     
 
 
 

Make a grand entrance and highlight the majestic views, elegant garden, exciting entertaining area - the Bifold Double Glazed window is so versatile in its uses, that no matter the occasion, it can transform you home from a peaceful and comfortable domicile, to flamboyant and eccentric abode or even a spacious and durable playground!

Bifolds have many applications, and not just commercially, such as in restaurants and cafes, they can be used in residential applications for internal or external purposes. Bifold Double Glazed windows have been in demand because of their stylish full-opening design and great practicality, since their performance with respect to acoustic insulation and thermal efficiency has been highly regarded by specifiers having an acoustic rating of upto 44dB and a u value of 1.8.

 
           
         
 
 
 
 
 
 
 
 
 

Star Rating for double glazed bifold windows

       
  32mm Double Glazed sealed units.
  Aluminium reinforcement.
  Corrosion resistance hardware.
  Joints are all fully welded.
  Key operated push button handles.
  Opens from inside for easy cleaning.
  Sash weight up to 110kg.
  Multi point locking systems (Up to 7 locking points).
  High Impact white PVCu multi-chambered frames.
  Double weather seals to eliminate draughts completely.
  Improved protection against corrosion in coastal areas.
     
       
       
     
 

Consider using bifolds internally, to block out the noise in the kids Games room, while keeping a watchful eye at all times. Alternatively, bifolds can be strategically placed on the balcony, deck or garden to make entertaining easy by having a wide area to enjoy the view, pass food onto the table, and appreciate the space you create.

View our range of Bifold Double Glazed Windows and Doors in the gallery page -discover their potential, imagine the difference of space and light they will make in your home and become inspired to make your home more comfortable and stylish.

 
     
     
         
 

IGU for double glazed bifold windows

 
         
 

Double Glazed Units or IGU are the intelligent choice for consumers who appreciate performance and quality, and are supplied based on thermal or acoustic requirements.
We use 32mm insulated sealed units made locally and fulfilling all the requirements of Australian Standards for glass and glazing. Glazing options include Float, Laminated, Toughened, Low-e, Tinted and Obscure glass.
The air space between the glass layers may be filled with air or an inert gas, such as argon or krypton which improves thermal and acoustic performance and reduces greenhouse gas emissions by saving energy!

 
         
 

There are many benefits to utilizing double glazing in your home, and apart from substantial improvement in thermal and acoustic comfort our customers report a reduction in energy costs, elimination of condensation, a considerable decline in fading of furniture and artwork and improvement in visual attractiveness and increase in the resale value of your home. In addition, for clients with older homes that retained original features, the existing glass may not meet the current Australian standards and may even be deemed unsafe. This is especially true of doors & bathroom windows, where safety glass and obscure glass, respectively, is not only desirable but mandatory! Take this opportunity to upgrade the windows and doors in your home and enjoy the benefits now and in the future!    [ IGU for double glazed bifold windows. . . . ]

 
         
         
     
 

Optional type for double glazed bifold windows

 
     
         
     
         
 

Bifold Window 330

 

Bifold Window 321

 
 

This double glazed window combination consists of three double glazed panels, with all double glazed panels opening on the left. The bifold double glazed window combination can be reversed in direction (left or right), or used as opening in, instead of opening out. This window is appropriate to use for aperture size from a minimum of 1500mm to a maximum of 2700mm in width. If the sizes of your intended double glazed application exceed this, then consider another bifold combination that accommodates your sizes. All bifold double glazed windows and doors can be produced as top hung or bottom hung, according to customer needs.

 

This double glazed window combination consists of three double glazed panels, with two double glazed panels opening on the left and the remaining panel on the opposite side - right. The bifold double glazed window combination can be reversed in direction (left or right) or used as opening in, instead of opening out. This window is appropriate to use for opening size from a minimum 1500mm to a maximum of 2700mm in width. If the sizes of your intended double glazed application exceed this, then consider another bifold combination that accommodates your sizes. All bifold double glazed windows and doors can be produced as top hung or bottom hung, according to customer needs.

 
         
         
       
 

Bifold Window 431

This double glazed window combination consists of four double glazed panels, with three double glazed panels opening on the left and the remaining panel on the opposite side - right. The bifold double glazed window combination can be reversed in direction (left or right) or used as opening in, instead of opening out. This window is appropriate to use for opening size from a minimum 2000mm to a maximum of 3600mm in width. If the sizes of your intended double glazed application exceed this, then consider another bifold combination that accommodates your sizes. All bifold double glazed windows and doors can be produced as top hung or bottom hung, according to customer needs.

 
       
       
       
 

Bifold Window 550

This double glazed window combination consists of five double glazed panels, with all five double glazed panels opening on the left. The bifold double glazed window combination can be reversed in direction (left or right) or used as opening in, instead of opening out. This window is appropriate to use for opening size from a minimum 2500mm to a maximum of 4500mm in width. If the sizes of your intended double glazed application exceed this, then consider another bifold combination that accommodates your sizes. All bifold double glazed windows and doors can be produced as top hung or bottom hung, according to customer needs.

 
       
       
       
 

Bifold Window 532

This double glazed window combination consists of five double glazed panels, with first three double glazed panels opening on the left and the remaining two panels on the opposite side - right. The bifold double glazed window combination can be reversed in direction (left or right) or used as opening in, instead of opening out. This window is appropriate to use for opening size from a minimum 2500mm to a maximum of 4500mm in width. If the sizes of your intended double glazed application exceed this, then consider another bifold combination that accommodates your sizes. All bifold double glazed windows and doors can be produced as top hung or bottom hung, according to customer needs.

 
       
       
       
 

Bifold Window 541

This double glazed window combination consists of five double glazed panels, with four double glazed panels opening on the left and the remaining panel on the opposite side - right. The bifold double glazed window combination can be reversed in direction (left or right) or used as opening in, instead of opening out. This window is appropriate to use for opening size from a minimum 2500mm to a maximum of 4500mm in width. If the sizes of your intended double glazed application exceed this, then consider another bifold combination that accommodates your sizes. All bifold double glazed windows and doors can be produced as top hung or bottom hung, according to customer needs.

 
       
       
       
         
     
         
 

Bifold Window 633

 

Bifold Window 651

 
 

This double glazed window combination consists of six double glazed panels, with three double glazed panels opening on the left and the remaining three panels on the opposite side - right. The bifold double glazed window combination can be reversed in direction (left or right) or used as opening in, instead of opening out. This window is appropriate to use for opening size from a minimum 3000mm to a maximum of 5400mm in width. If the sizes of your intended double glazed application exceed this, then consider another bifold combination that accommodates your sizes. All bifold double glazed windows and doors can be produced as top hung or bottom hung, according to customer needs.

 

This double glazed window combination consists of six double glazed panels, with five double glazed panels opening on the left and the remaining panel on the opposite side - right. The bifold double glazed window combination can be reversed in direction (left or right) or used as opening in, instead of opening out. This window is appropriate to use for opening size from a minimum 3000mm to a maximum of 5400mm in width. If the sizes of your intended double glazed application exceed this, then consider another bifold combination that accommodates your sizes. All bifold double glazed windows and doors can be produced as top hung or bottom hung, according to customer needs.

 
         
     
 

Hardware for double glazed bifold windows

 
     
           
   

Central locking system

   
     
 

Hardware components are integrated via a central locking system. The mechanism comprises bichromate finished steel multi-point espagnolette locking that operates around the sash. The number of locking points is dependant upon the window size (Up to 7 points).

     
           
         
   

Handle 7 x 32mm

 
   
 

Cylinder with the key and with a locking device.

   
         
           
   

Sash guide security locking

 
     
 

Sash sagging, rollers move sash in to perfect position. Effective burglary protection.

     
           
           
   

Eurogrove Hinge

   
     
 

Side hinge provides extra seal tightness, which creates better acoustic and thermal insulation, while being adjastable in 3 dimentions.

     
           
           
   

Central locking system

   
     
 

Hardware components are integrated via a central locking system. The mechanism comprises bichromate finished steel multi-point espagnolette locking that operates around the sash. The number of locking points is dependant upon the window size (Up to 7 points).

     
           
           
   

Striker

   
     
 

Strikers share the same mounting axis, so they are interchangeable. Three corner drives with mushroom cam locking and rear-cut strikers are standard and guarantee effective burglary protection.

     
           
           
       
 

Operational Guarantee for double glazed bifold windows

 
 

Operational tests are carried out on the handles on the bifold windows itself. This means that, not just the function, but also the durability of the attachment between hardware and window is tested thoroughly. They are given the equivalent of 50 operational cycles a day over a period of 10 years.

Neither the bifold windows handle itself, or any part of it, must become loose during the course of the test. This ensures the components Double Glazed Windows and Doors use perform consistenly well, so that our customers enjoy a trouble free use of their windows!

 
       
       
       
       
 

Material double glazed bifold windows

 
 

Upvc Profile

 
  The profile we use for Double Glazed Windows and Doors is premium worldwide brand REHAU, founded in Germany, which specilises in polymer-based innovations and systems in medical applications, construction, automotive and industry. As a leading supplier of polymer-based solutions to construction, REHAU addresses sustainable design priorities by engineering products that enhance comfort and convenience, reduce energy costs, create healthy and safe environments, and conserve finite resources. REHAU's products and systems for double glazed windows and doors, heating and plumbing, fire protection and pipe markets complement each other in integrated high-performance solutions. Stylish and attractive, elegant and practical - every carefully thought-through facet of our range has been designed with appearance in mind.    [ more . . . . ]  
       
 

Aluminium Reinforcement

 
  Double glazed windows and doors reinforced with aluminum sections and sealed within the profile central cavity. Multi-chambered profile design to allow larger reinforcement for high wind load application in high rize buildings. A fully welded windows and doors system is used for increased strengh and water tightness.    [ more . . . . ]  
       
       
       
       
 

Dimensions of double glazed bifold windows

 
 

Maximum size in double glazed bifold windows

 
  The maximum panel width is 900mm, while the maximum height is 1600mm. The size guide is subject to instructions given by fitting suppliers, maximum sizes are based on a wind pressure of 600Pa and a sash capacity weight of 75kg.    [ more . . . . ]  
       
             
 

Benefits of double glazed bifold windows

 
     
 

Thermal Insulation in double glazed bifold windows

Corrosion resistance in double glazed bifold windows

  Protect yourself from the extremes of heat and cold with advanced thermal insulation resulting in exceptional energy and money savings.    [ more . . . . ]   Our Double Glazed windows and Doors are extremely resilient and will never rot, corrode, discolour or warp even in coastal or industrial areas.    [ more . . . . ]  
             
 

Sound Insulation in double glazed bifold windows

UV resistance in double glazed bifold windows

  Transform your lifestyle and take advantage of renowned german engineering with noise reduction benefits of 33-45 decibels.    [ more . . . . ]   Double glazed window and doors have full UV protection whereas standard aluminum and wooden windows are at risk of severe damage by the sun.   [ more . . . . ]  
             
 

Weather seal in double glazed bifold windows

Fire Resistant in double glazed bifold windows

  Prevent rainwater penetration and draught infiltration even in the most severe climatic conditions.    [ more . . . . ]   Independent lab testing determined our double glazed windows and doors to decrease flammablity through selfextinguishing and noncombustible qualities.    [ more . . . . ]  
             
             
             
     
 

Fixed Window

 

Continuity, refinement and reflection of light will bring out the many benefits by the use of our Double Glazed Fixed Panels. They are cost efficient and offer the ultimum level of high performance in acoustic and noise insulation, since they are non-openable. Our approach deals with important aspects of architecture - the cultural and the natural environment. Combine together with other window and door types to allow the play of light and shadow in your home, or for breathtaking surrounding view, and improve the energy efficiency, sound insulation and comfort qualities in your home. Fixed panels have universal appeal and can be used in any style of home! They are environmentally friendly since they are recyclable and contribute to reduction in carbon emissions.   Get the answers on your questions on double glazed fixed window on this page

 
     
 

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.   Greater detail on double glazed casement window can be found here

 
     
 

Tilt & Turn Window

 

Every day we face tough new challenges and innovate according to our clients' needs and desires, leaving a lasting impression on everyone with our Double Glazed Windows. The most versatile and flexible window that retains its popularity through the changing trends in architecture and interior design is the Double Glazed Tilt & Turn window, which adapts to the users intention to ventilate, clean or insulate through unique hardware and security features. As well as the possibility of opening inwards or outwards, by turning the handle, clients will have the option to tilt the window inside slightly and ventilate or clean the window easily. And of course, for extraordinary performance in acoustic and thermal insulation for full control of the environment inside your home, you will be close it shut and lock it indefinitely for extra security.   For more information double glazed tilt & turn window

 
     
 

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.   To obtain additional information on double glazed awning window

 
     
 

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.   For a detailed discussion on the subject of double glazed side hinged window click 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.   To obtain additional information on double glazed sliding window

 
     
 

Stacker Window

 

Self sufficient and allowing for maximum natural ventilation, Double Glazed Stacker Windows slide and fold effortlessly demonstrating the refined taste of an intelligent consumer. Double Glazed Stacker Windows can create a vast amount of space along with an inviting contemporary character, and re-create a glass wall effect because they are not constrained to the same limitations of casement, awning and tilt & turn windows where the openings are restricted. The Double Glazed Stacker Window has two or more (upto six) panels, with one panel sliding past another, and all of the panels resting or being 'stacked' on one or two sides. They are a great alternative to Bifold Double Glazed Windows, when the client prefers the sliding style over the Bifold, or when space is at a premium, since with Stacker or Sliding Double Glazed Windows you need not worry about furniture placement or possible exterior obstacles. These windows feature ease of operation and maintenance, and a universally appealing design that will complement any modern home.   For a detailed discussion on the subject of double glazed stacker window click here

 
     
 

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.   Great suggestions and more on double glazed bay window can be found here

 
     
 

Shape Window

 

All of your senses work to appreciate a building and its components and this involves time and space: thermal and acoustic and tactile sensations, as well as memories and associations. Uniquely designed windows can even bring about a whole repertoire of past experiences and future hopes, based on your emotions and tastes. Through compellingly perceptive rethinking of the configurations of members, joints and welding processes, we are able to manufacture almost any shape and size, only limited by your imagination! Ultimately, shape windows are a symbol of your creativity and individuality.   To obtain additional information on double glazed shape window

 
     
 

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.   Read more on double glazed casement door

 
     
 

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

 
     
 

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 supplementary material on double glazed sliding door click here

 
     
 

Stacker Door

 

The Double Glazed Stacker Door has two or more (upto 6) panels, with one panel sliding past another, and all of the panels resting or being 'stacked' on one or two sides. They are a great alternative to Bifold Double Glazed Doors, when the client prefers the sliding style over the Bifold, or when space is at a premium, since with Stacker or Sliding Double Glazed Doors you need not worry about furniture placement or possible exterior obstacles. These doors feature ease of operation and maintenance, a universally appealing design that will complement any modern home.   Examine all the facts on double glazed stacker door page

 
     
 

Tilt & Turn Door

 

When design and utility are a priority, our cutting edge technology is sure to impress! For exceptional thermal and acoustic performance coupled with trouble free maintenance and ingenious design, this Door will exceed your expectations. The inward swinging Tilt and Turn Double Glazed Door, operates in the same way as the Tilt and Turn Double Glezed Window, and is built with the same care and precision that any window and door deserves. Special high quality hardware allow a single handle to operate all three functions: multiple security locking points for safety when locked, special hinges allowing the window to tilt inside for gentle air flow, and of course, the fully opening 'turn' function for maximum air flow and ventilation.   Get all the facts on double glazed tilt & turn door

 
     
 

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.   Great suggestions and more on double glazed tilt & slide door can be found here

 
     
 

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.   Get the answers on your questions on double glazed composite door on this page

 
     
 

Bifold Door

 

Embrace the beauty and sophistication of our Bifold Double Glazed Door carefully crafted with uncompromising expertise and unsurpassed quality The Double Glazed Doors are the ideal choice for the aspiring or an expert entertainer, offering an awe inspiring effect of an unobstructed opening onto a pool deck, garden, private beach, bushland or conservatory. The superior performance features are maintained in this style, offering acoustic insulation of upto 40 dB, with excellent energy efficiency rating measured by a u-value of 1.8, all while being corrosion resistant and environmentally friendly.   Additional information on double glazed bifold door can be found at this location

 
     
 

Double Glazed Windows and Doors

 
       
  0412 717 066  
  info@windowfactory.com.au  
     
 

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.   Continued on the double glazed uv resistance page

 
     
 

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

 
     
 

Waterproof

 

uPVC Double Glazed Windows and Doors are constructed with the highest precision to keep out water during the rain, storms and even cyclones and have been used many times in marine applications, where their quality is heavily tested. They are far more waterproof than other types of windows as they don't absorb moisture. They will not leak (a common complaint of many owners of aluminium sliding windows) nor will they be damaged by water and rot (a potential problem with wooden windows).   Read more on double glazed waterproof

 
     
 

Stylish Modern Design

 

Our team has a diverse background in both commercial and residential design and we offer a unique combination of value, personal attention, and tailored services to all our clients. Our experience in successfully aligning clients requirements with their values to bring out a successful design solution for challenging work ranging from religious facilities, medical and dental offices, retail, sound studios and of course luxury homes. We foster a creative cooperation with your architect, builder and interior designer and work on joint solutions for a consistent approach that matches the clients requirements and considers specifiers recommendations. Thin and economical aluminium frames that are inevitably drafty and offer poor insulation can make even a good quality home seem cheaply built. We believe that our clients are intelligent people with discerning taste who can resist temptation of cheap imitations.   Read more on double glazed stylish modern design

 
     
 

Energy Efficiency

 

Purchasing new windows and doors can be a big investment. The advantage of our Double Glazed UPVC Windows and Doors is that the purchase becomes an investment that is value added and can pay for itself in just a few years by acting as an insulator and reducing heating and cooling costs which save you money every month. Over the life of a poorly insulated window, the cost of the heat loss is much greater than the purchase cost, especially with the rising energy prices. In addition, improving the curb appeal of your home with designer high performance windows can increase the property resale value. How valuable are your familyís comfort and peace of mind? You can be confident that our Double Glazed Windows and Doors will help you meet and exceed the requirements of the BASIX legislation, add a little luxury without adversely affecting the environment! Donít throw money away on cheap imitations - our windows boast u-values of 1.8 that is three times better than a typical aluminium sliding window with a u-value of 5.8.   For a detailed discussion on the subject of double glazed energy efficiency click here

 
       
 

Double Glazed Windows and Doors

 
  0412 717 066  
  info@windowfactory.com.au