In a nutshell, the benefits of uPVC windows and doors are:
- Energy saving due to the thermal efficiency of uPVC
- Draught-proof
- Enhanced security
- Single or double glazing
- Low maintenance
- Noise Reduction
- Recyclable
Benefits of uPVC windows and doors
Windows are an integral part of any building structure. They provide light, fresh air and a view. But that is not all. Windows are receiving a lot of attention in our quest for energy efficiency and energy conservation. Buildings are one of the major users of energy. In summer we cool our living spaces and in winter they have to be heated so that we can be comfortable. One of the main areas of heat transfer and energy loss is via the window frame and glazing.
uPVC windows and doors were originally used for their low maintenance, security and whole-life costings. However, it is the energy saving potential of uPVC window frames which make them very attractive. The uPVC frames are designed in such a way that they incorporate multi-chambers, reducing heat transfer and resulting in improved thermal performance. The Tritec system can be used with single or double glazing up to 32mm glass to improve the energy efficiency of the window.
During the manufacturing process the corners of the uPVC window and door units are fusion welded which physically seals the entire frame chamber, thus providing a totally sealed enclosure. Internal support ribs and cavities for the insertion of steel or aluminium reinforcing significantly increases the strength of the completed unit. Therefore the window or door frame is strong and draught proof.
Fabrication process of a uPVC window.
uPVC window frames have developed to such a degree that an extremely wide range of designs are available, capable of satisfying most architectural criteria, be it top hung, casement, sliding or fixed windows. They form part of a huge industry worldwide and are used extensively in Europe due to their thermal efficiency. In the UK the PVC market share is over 70%, giving an indication of the thermal efficiency and durability of PVC window and door systems. A variety of doors are available to complement the window range. REHAU offers french, residential, in-line sliding and folding stacking doors limited to a maximum height of 2.1m
Energy saving is not the only advantage of REHAU uPVC windows and doors. uPVC windows and doors have a long lifecycle and require little maintenance, thus PVC has a low impact on the environment. Added to this, PVC is an ideal polymer for recycling. Waste cut-offs and post-use PVC windows are used in REHAU factories in Europe for the manufacture of new uPVC profiles. In South Africa waste cut-offs are used as regrind in the manufacture of locally produced PVC products. Furthermore, uPVC windows and doors have sound dampening characteristics and improved security performance.
REHAU's uPVC windows and door systems provide a straightforward and cost-effective way of meeting both market and legislative demands for energy efficient buildings.
The range of features built into the REHAU Tritec system has been engineered with the focus on maximum efficiency and performance. This includes the option of fixing hardware into steel for improved technical performance and superior levels of security, and positive friction-stay location to reduce the strain on screws and hinges.
There is also a large reinforcement chamber within the profile which carries a very effective steel reinforcement offering larger windows with optimum performance and a 17/18mm stack height which offers more space for fitting heavy-duty hinges in these large windows.
Comparision of traditional window systems to REHAU Tritec uPVC windows
Benefit
uPVC
Aluminium
Wood
Steel
Heat transfer rate
Low
Medium
Low
High
Energy required to heat/cool a builing
Low
Medium
Low
High
Hot Box Test Results
Yes
Yes
Yes
No
BFRC / NFRC rating
C
N/A
N/A
N/A
Double glazing
Yes
Limited
Limited
No
Noise reduction
Yes
No
Limited
No
Draught proof
Yes
No
Limited
No
Low maintenance
Yes
Yes
No
No
Safety increased
Yes
No
No
No
Profile Warranty
Yes
Yes on coating only
Yes if treated
No
Local representation
Yes
Yes
Yes
Yes
SANS 204 Compliancy
Yes
Limited
Limited
No
"U" Value Compliant
Yes
Limited
Limited
No
Whatever the style of your home, office or building there is a REHAU uPVC window and door to suit your requirements– all offering a high gloss finish, slim sight lines and high thermal and acoustic performance.
Choose from single or double glazed windows, casement windows, windows that tilt and turn or sliding windows in various shapes and sizes.
The uPVC doors come in various styles. You can choose from single or double glazed doors, French doors, stable doors, patio doors and multi-fold stackable doors.
Both REHAU Tritec and Ecotec window and door systems can accommodate glazing from single to 32mm double glazing.
