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Aluminum is one of the most used metals in today’s society – Buy Aluminium Sections in Pretoria  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Aluminium Windows

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Storm Window Frame Extrusions it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Sections Catalogue

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Windows Pretoria

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Flat Aluminum Extrusions the drawing process is skipped.

Aluminium Windows Pretoria

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Buy Aluminium Sections in Pretoria?

Aluminium Windows Cape Town

Over the last several years, heavy-weight particle board and cabinet-based displays have lost their appeal and made way for the next innovation in displays systems - truss display systems. Today, exhibitors who want a display that looks substantial without the cost and assembly headache of cabinetry are choosing truss systems.

The Problem

Display systems that use materials such as cabinets and laminate panels to create larger island displays can cost exhibitors thousands in shipping and assembly costs alone for each show. On top of that, constant assembly and tear-down of these systems can leave them chipped, scratched and beat-up after just a few years.

The Solution

Today, while laminate panel systems are still widely used and requested, a new breed of aluminum frame displays can be a less-costly alternative. These systems are sleek, functional, and offer all of the amenities of laminate panel systems, including shelving, overhead lighting, and storage. Additionally, these systems offer versatile and striking visual options including backlit graphics, tension fabric graphics and areas for plasma screens and computer demos.

How They Can Maximize Your Budget

As an alternative to heavier wood displays, aluminum displays are much lighter in weight, making them far less costly to ship. Additionally, many aluminum frame displays assemble without the need for tools, saving money in set-up costs.

Aluminum Garage Doors - 10 Benefits

Aluminium Windows

Extrusion is the process to change the structure and shape of different metals. Some of the metals that are commonly extruded include aluminium, copper, lead, magnesium, zinc, titanium etc.

As aluminium is malleable in nature, it is easy to extrude. Specific dies are used for the aluminium extrusion process. These steel dies have opening of the desired shapes. Primarily, this process can be of two types - hot and cold. For hot process, precise heating is very important. It is done above the aluminium's recrystallization temperature. While, cold process is done at room temperature or near room temperature.

To obtain superior quality and improved surface finished aluminium extrusions, accurate temperate and its monitoring is vital. The finishing increases the durability, strength and its appearance. In the process, a billet is heated at the temperature of 400 C to 500 C and is pushed through the die under pressure to create preferred profiles. The shape, structure and specifications vary according to the requirements of the product, customers and its application.

The company's manufacturing aluminium extrusions prefer extrusion process over welding as it gives product with constant cross section. The strength and lightweight (strength-to-weight ratio) of this metal makes it popular among customers. Its several other properties gives it edge over other metals. These are cost-effective, corrosion-resistive, flexible and durable.

The prime source of aluminium is bauxite ore and Feldspar to some extent. Some of the fields where the this metal's extruded shapes are used include transportation, building and construction to name a few.

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Buy Aluminium Sections List

Aluminum is one of the most used metals in today’s society – Buy Aluminium Sections in List   it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Aluminium Window Frames For Sale

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Where To Buy Aluminum Extrusion it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Alspec Aluminium Catalogue

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Window Frames For Sale

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Aluminum Glazing Extrusions the drawing process is skipped.

Aluminium Window Frames Catalogue

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Buy Aluminium Sections in List ?

Aluminium Window Frames Catalogue If you have a wonderful house with a great view of your garden or picture-postcard scenery spread gorgeously in front then you need doors that give an unimpeded view.
Consider the standard options like sliding doors. A part of the opening will always remain covered regardless of whether you use two partitions or three partitions. French doors simply do not suit large openings. The answer is custom bifold doors especially when the opening is large and an unrestricted view is desired. They save space and give an unhindered view of the exteriors.
The term bifold doors may be a misnomer since these doors are, in effect, made up of several panels that fold together like an accordion or concertina into a compact bunch of panels that do not take up much space and stay neatly on one side of the opening. You have a clear view. Standard panel sizes may range from 24 to 36 inches in width or customized to suit the width of the openings, which could be a better option in some cases. Custom bifold doors can help save space and the use of matching hardware means it will be a joy to operate.
Customization could take several forms. You can choose to have bifold doors with narrow or broader panels to suit design considerations and aesthetics of how the door will look when fully closed. Narrow panels do give a nice look but in some cases one may wish for a less obstructed view in which case broader panels serve the purpose. Cost will also vary. Obviously more panels lead to higher cost but the advantage is that opening and closing the bifolds will be easier when the door has narrow panels and they take up less space.
Where there are doors with glass the question of curtains or blinds always comes up. Here again customization helps when you choose double glazing panels with inbuilt blinds that are totally sealed within and can be opened or closed by sliding a magnetic latch. Such integrated bifold doors also help save space and present a neater appearance. Then there are small details that the installer and manufacturer will take care of such as using quality sliding tracks, pivots and hinges that integrate seamlessly into the aluminum frame. Another matter that necessitates customization is whether to place the track at the top or bottom. It is best to consult a reputed door supplier and installer and get a site inspection in order to get a customized fitting.
Bifold doors are not meant just as a partition between indoors and outdoors. They can also be used indoors to good effect as space savers between rooms. One can have a larger opening without the inconvenience of large door panels creating obstructions in confined spaces.
Bifold doors have several advantages such as ease of use, complete opening up of a room to the outside, security with the right set of hardware and energy efficiency. These advantages can be further enhanced by customizing the bifold panels along with glazing and hardware fittings.

Aluminium Extrusion Manufacturing Process

Aluminium Windows Cape Town

Having lived with all three types of windows and patio doors in the past three years, I feel that I am an 'expert user' when it comes to opening and closing in each medium: wood, pvc and aluminium.

First, the novice's choice: wood. It looks great, feels warm, can be stained a medium or dark shade or painted any colour of the spectrum. It's an age-old medium so what can go wrong? The main problems are humidity and strong sunlight.

There are varying qualities of wood on offer, depending on your budget. A moderately-priced pair of French doors on a south-facing house wall suffered a degree of warping, creating gaps that had to be plugged each winter in an attempt to keep the cold draughts at bay whereas, in warmer damp circumstances, the door had to be forcibly pushed and pulled back into its aperture.

Two good summers and the four coats of varnish had virtually vapourised, revealing cracking wood that needed nourishing and protecting from the next couple of years' weather.

Second, the double-glazing salesman's special offer: PVC. Overpriced by a couple of well-known companies who then discount by 50% if you hesitate, PVC is also available in varying qualities. At the higher end of the market, the frames are often reinforced with metal.

Generally with more features than wooden doors and windows, PVC should not require much more than a quick wipe with a damp cloth for the first few years and its looks are therefore easier to maintain. We have some PVC French Doors from the lower price range. As value for money, they are quite good but an element of trust is lacking in terms of defence against determined intruders. They feel floppy and flimsy when opening and closing and there's a knack to locking and unlocking them successfully. We have older PVC doors from the higher price range and, whilst more sturdy (reinforced with metal) they are looking a tad ratty.

The PVC windows screeched with wind whistling through, like semi-detached tinnitus.

Thirdly and finally, the long term investment: powder-coated aluminium frames. If you are fed up with sanding down wooden frames and considering the easy option of PVC or coated aluminium, particularly for a wide opening with multi-folding doors. Consider whether PVC is up to the task of substituting for the wall of your house.

Stand back and look through closed doors at the difference between PVC and aluminium - it is very noticeable. With PVC, there are windows of scenery between wide areas of plastic (two frames together might measure between 8 and 10 inches, 20 to 25cms) so the doors block up to 20 per cent of the potential view and light-source.
 
Aluminium frames on bifolding doors from manufacturer SunSeeker Doors, being stronger, are only about 2 inches or 5 centimeters. The profile is also considerably smaller so the doors use far less space than PVC or wood when folded back. For those who want color, several options are available to order, the most popular (after standard white) are: Grey, blue, green, brown and silver. Aluminium Frames are more expensive than cheap PVC or wood but prices are comparable with the better quality PVC doors. Is aluminum worth the extra cost? If you want the "wow" factor, strength, longevity, maximum living space and the most panoramic view,Yes.

Aluminium Windows

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Fern Gully Have Aluminium Section List

Buy Aluminium Sections Easy

Aluminum is one of the most used metals in today’s society – Buy Aluminium Sections in Easy  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Aluminium Window Sections Catalogue

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Aluminum Extrusion Slider it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Sections Catalogue

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Windows

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Extruded Window Frame the drawing process is skipped.

Alspec Aluminium Catalogue

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Buy Aluminium Sections in Easy?

Aluminium Window Frames Details

When you are refurbishing or extending your house or building a new one you will face the question of which door material to use. Aluminum doors or steel doors? The most commonly used door materials are the aluminium, wood, PVC, steel, but which is better? Let's show the facts and situations to use either aluminium doors or steel doors.

One of the most important characteristics of a door is the durability. The durability greatly depends on the environment where the door is implemented, the conditions of use or the area where it is installed.

Exteriors

This is one of the biggest obstacles for using doors. Although we can use some stainless steel that combines iron, chromium, and many other elements. It can be a little expensive if we want great corrosion resistance and thus, durability. Stainless steel can get marked up with fingerprints and grease, develop discolouration, scratches and eventually rust. In coastal areas, the corrosion issues get worse decreasing the useful life of the steel door, so the maintenance with protective layers of paint is periodically needed.

On the other hand, the aluminium doors are the perfect choice for outsides since it has a natural resistance to corrosion that makes it maintenance free. For example, the aluminium doors are even lighter than their steel counterparts at a very similar price, and the flexibility of the material offers much more profile styles than doors. So let's say aluminium doors are mostly recommended for the steel doors for the outsides unless you need the structural strength of the steel for hard use or safety reasons.

Insides

In this situation, the steel doors are preferred since they are cheaper, safer and more resistant than aluminium since it cannot be kicked and is extremely hard to bend, even using tools. The aluminium counterpart can be more expensive, but it can give a premium feel to the door when the correct door style is used. Additionally, the aluminium doors offer a great variety of finishes and colours that result in a nice look in the right circumstances. The steel doors can be stylish too since they do an excellent job of imitating the wood with the use of some advanced state-of-art door.

Home security

Home intruders are one of the major concerns for every family guy. The best option for security issues are the steel doors since the steel is one of the strongest material to manufacture a door. The steel door won't crack or warp, and there are some high-security steel door models that feature a large number of locks and hinges with different style designs. There is also some high-security doors that use aluminium as a main metal component, so the aluminium doors are not left behind on this subject.

Thermal insulations

Both door presentations are not solid steel or aluminium. They have foam, wood, polyurethane or polystyrene foam or fiberglass core to prevent the heat transfer. So, in this case, both doors have a great thermal insulation that will help you to keep your house warm in the winter and cool in the summer, making them energy efficient.

Esthetics
As mentioned before, the aluminium offers a choice of colours to match the style of your home. Meanwhile, when we want to avoid the rust on the steel, the galvanized steel is recommended. Nonetheless, this kind of steel is not easy to customize or paint. If you want a customized steel door that endures at lifetime, you have to pay for the premium stainless steel, which is not cheap at all. An alternative to premium stainless steel but not as good-looking is a coat of weather-resistant paint since the steel can accept a large variety of paint types but they must be weather-resistant to prevent corrosion and be falling apart because of the rust expansion in the steel door.

Cost

The cost of the steel and aluminium doors depends greatly on the security level, style, and corrosion resistance. The steel doors can be really inexpensive when the corrosion resistance is not required, and its maintenance is easy to do. But if you need corrosion resistance, galvanized steel could be a cheap but not an aesthetic option. The expensive premium steel offers the bests doors in terms of aesthetics, security and endurance options.

In the case of the aluminium doors, they are cheaper than premium steel doors, but they offer improved natural corrosion resistance for a longer useful life. Nonetheless, the aluminium doors are not made for hard use which can hinder its useful life and result in an extra cost by replacing the door after a rigorous use as is in a patio with kids and pets.

Verdict

Both doors have enormous potential in different areas, but if you do not care about saving money, I think the winners are the doors thanks to its great versatility and variety of presentation for almost any budget and environment. The steel doors are a reliable option for security, durability, and aesthetics.

The aluminium doors are quite good as well, they offer a maintenance free material with excellent durability for a reasonable price. However, it lacks structural strength in comparison to the steel doors. You have the ultimate decision to choose the best door that can fit your style, secure and budget requirements.

How Manufacturers Do Aluminum Extrusion?

Aluminium Windows South Africa

Bifold doors are expensive but well worth the investment if you are considering renovations. Your house opens up to the garden and creates an amazing aesthetic when these doors are installed. It pays to exercise caution and care in a selection of the doors and consider various factors.


Price is not everything

The cheapest is not the best and the most expensive also is not necessarily the best. A Bifold door is not just panels put together; it is an entire system where design, engineering precision and choice of hardware plays an important in the door's looks and performance just as much as the bifold door installation does. Buying a well known international brand with local support is a good option.


Material of door

Bifolds can have wood, steel, uPVC or aluminum section frames. Wood can obstruct the view and be heavy. uPVC material can flex and distort which will affect the working of the door and there is a size limitation as well. Steel can be heavy. Aluminum is the best material for sections. It is relatively stable and does not tend to distort with temperature variations. From the maintenance point too aluminum scores because powder coated or natural anodized aluminum does not need frequent paint or maintenance.


Top hung or bottom rolling?

Bifold doors are available as top hung or bottom rolling types. If a strong enough beam is present then the top hung type is best because it does not collect leaves and debris and the frame conceals the mechanism from view.


Hardware and installation

Hardware is complex with bifold doors and must be precision engineered from quality materials besides being fitted just right during installation. Improper alignment can affect performance and cause stress on frames besides making the door hard to open and close. Quality systems have wheels that run on flat tracks and pivoted end doors for smooth movement even when the jamb does not allow much adjustment. Bifold door installation is important too when it comes to getting the threshold right to prevent rain seepage and yet creating a smooth transition that does not cause one to stub one's toes. Rain penetration is an important matter especially if the door is exposed. This is where the expertise of installer comes into play to provide a perfectly rebated rain-proof threshold. Security is another aspect to consider in the matter of bifold door hardware and a typical secure door would have multipoint locking system with shoot bolt for intermediate panels.


Single or double glazing


Energy conservation is important so double glazing is recommended. It will also provide some degree of acoustic insulation. Quality manufacturers provide U-values of 1.8w/sqmK or lower for such energy efficient bifold doors.


Screening

There are times when one may want an unimpeded view and there are times when one may want to shut out the light. Curtains are good but can impede the view. Venetian blinds that roll up all the way to the top may be ideal. If you choose a double glazed door then the blinds may be incorporated into the panels but at the cost of impeding the view. It is best to coordinate with the installer and clear this point as well before ordering a bifold door.

Alspec Aluminium Catalogue

 


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Fern Gully Have Aluminium Section List

Buy Aluminium Sections Popular

Aluminum is one of the most used metals in today’s society – Buy Aluminium Sections in Popular  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Aluminium Window Sections Catalogue

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Aluminium Window Frame Extrusions it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Windows South Africa

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Window Frames Details

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Aluminum Extrusion Profiles the drawing process is skipped.

Alspec Aluminium Catalogue

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Buy Aluminium Sections in Popular?

Alspec Aluminium Catalogue If you have a wonderful house with a great view of your garden or picture-postcard scenery spread gorgeously in front then you need doors that give an unimpeded view.
Consider the standard options like sliding doors. A part of the opening will always remain covered regardless of whether you use two partitions or three partitions. French doors simply do not suit large openings. The answer is custom bifold doors especially when the opening is large and an unrestricted view is desired. They save space and give an unhindered view of the exteriors.
The term bifold doors may be a misnomer since these doors are, in effect, made up of several panels that fold together like an accordion or concertina into a compact bunch of panels that do not take up much space and stay neatly on one side of the opening. You have a clear view. Standard panel sizes may range from 24 to 36 inches in width or customized to suit the width of the openings, which could be a better option in some cases. Custom bifold doors can help save space and the use of matching hardware means it will be a joy to operate.
Customization could take several forms. You can choose to have bifold doors with narrow or broader panels to suit design considerations and aesthetics of how the door will look when fully closed. Narrow panels do give a nice look but in some cases one may wish for a less obstructed view in which case broader panels serve the purpose. Cost will also vary. Obviously more panels lead to higher cost but the advantage is that opening and closing the bifolds will be easier when the door has narrow panels and they take up less space.
Where there are doors with glass the question of curtains or blinds always comes up. Here again customization helps when you choose double glazing panels with inbuilt blinds that are totally sealed within and can be opened or closed by sliding a magnetic latch. Such integrated bifold doors also help save space and present a neater appearance. Then there are small details that the installer and manufacturer will take care of such as using quality sliding tracks, pivots and hinges that integrate seamlessly into the aluminum frame. Another matter that necessitates customization is whether to place the track at the top or bottom. It is best to consult a reputed door supplier and installer and get a site inspection in order to get a customized fitting.
Bifold doors are not meant just as a partition between indoors and outdoors. They can also be used indoors to good effect as space savers between rooms. One can have a larger opening without the inconvenience of large door panels creating obstructions in confined spaces.
Bifold doors have several advantages such as ease of use, complete opening up of a room to the outside, security with the right set of hardware and energy efficiency. These advantages can be further enhanced by customizing the bifold panels along with glazing and hardware fittings.

Aluminium Windows and Doors - Beautifying the House

Aluminium Sections Catalogue

When double glazing first became a popular window choice in the 1960s, most frames were made of aluminum. Aluminum remained the most popular choice for framing double glazing windows through the mid-1980s, when it held over 60% of the market. Since the introduction of PVC window framing, the market share of aluminum framed windows has dropped steadily. As of 2003, less than 17% of windows sold were aluminum framed. There are many reasons for the drop in popularity - and still some good reasons for choosing aluminum over PVC or wood frames.

The early popularity of aluminum was based on price and convenience. Aluminum was far less expensive than wood, the only other choice for window framing in the early years of double glazing. In addition, aluminum is easily extruded in the shapes and lengths needed to frame windows of any shape or size. It's strong, durable and very close to maintenance free.

Aluminum frames do have one significant drawback, however. Aluminum is an excellent conductor of heat and cold. It's such a good conductor, in fact, that in colder temperatures, frost often forms on interior surfaces of the windows close to the aluminum joints. The end result is windows that are significantly less able to conserve heat and energy than those framed in other materials.

PVCu was introduced in the mid-80s as a choice for framing double glazing windows, and immediately began to climb in popularity. When compared with aluminum frames, PVCu was less expensive, and more energy conservative. It can't match the strength of aluminum, however, and there are security concerns with its use. In addition, the introduction of 'thermal breaks' reduces the heat conductivity (measured in U values) of aluminum framed windows significantly. By fitting a less conductive material between the panes of the window as a sort of 'bridge' between the glass, manufacturers can bring the U value of aluminum framed double glazed windows within conservation standards.

The main selling points for aluminum window frames, then, were:

1. Strength - aluminum framed windows are far less prone to warping. The aluminum withstands weather well, needs no painting and forms strong, rigid window frames that will fit for far longer than wood frames.

2. Cost - aluminum frames are far less expensive than wood frames. They are easier to manufacture, and the material is less expensive to begin with. On the other hand, the introduction of PVC has largely negated the advantage of cost. Far lower in price, and with more efficient heating, PVC has become the material of choice for framing double glazing windows.

3. Ease of maintenance - As opposed to wood, which is subject to warping and decay and needs repainting every 3-5 years, aluminum is virtually maintenance free. It never needs painting, doesn't rot or warp, and is rigid and strong enough to bear the load of window lintels with minimal reinforcement.

4. Security - Because of the tight fit possible with aluminum framed double glazed windows, they were - and still are - the choice where security is a paramount concern. It's very difficult to 'pop' an aluminum framed window from its frame if it's properly fitted.

Aluminium Sections Catalogue

 


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