Are you looking this product? Now you can get product in ePub Format,just following step by step until finish you will be guided downloading this book for free, Enjoy it.
Windows need to have good frames to make them fully functional rendering good performance when used at home. These window frames also affect the insulation characteristics of windows. For instance, it was observed that the usual double-glazed aluminium frames in windows are not really efficient for insulation. There are different types of windows too that you need to consider. If you want excellent insulation with good energy efficiency rating, you need to study the type of window and the types of materials that you will use on your windows. These are the different choices that you will have for your window frames. Study each material well to determine the final material for your frames.
Aluminium
This is a good frame material in the sense that it is strong, light, durable, and can be easily formed into different shapes to follow the contour of the shapes of the window parts. Aluminium frames are manufactured with enamel and anodised finishes. These are the kinds of finishes that are low maintenance and durable. However, one letdown with these frames is their thermal conductance at such a high level. By high level of conductance, this means that the frames can easily conduct heat. As a result, the U-factor of windows with aluminium frames only goes up. When window frames made of aluminium are used in cold climate, windows easily collect moisture and frost found inside the frames’ surfaces. However, this condensation problem was already addressed with the introduction of a thermal break in newer aluminium window frames. Aluminium frames though have been prohibited from being sold or used since 1993.
Aluminium with Thermal Break
Due to the observed problem with condensation in plain aluminium frames, the thermal break feature in frames was introduced. This is rendered as the most common solution to break the accumulated frost moisture on the inner surfaces of the window frames. The thermal break feature splits the frame into exterior and interior pieces. To make the split even better and to reduce the high thermal conductance of aluminium frames, a less conductive material is used to connect the interior and exterior pieces of the frames. This innovation has significantly helped in the increase of the aluminium frame R value or heat loss rate of windows with aluminium frames from 2.0 to about 1.0Btu/hr-sq. ft-A ºF.
Vinyl
This is a plastic frame that is a good insulator and is moisture resistant. It is also maintenance-free because it does not have any finish coating that can deteriorate or grow discoloured anytime. Vinyl frames are now made with more resistance to extreme temperatures when exposed to external elements and sunlight. These frames function similar to wood.
Wood
This is the traditional frame used in windows, credited to its flexibility in being formed to different shapes and its accessibility as a material. This is also usually favoured for use in windows in many residential applications. Even if a wood frame is not really as durable as the others because they rot easily, they can still last longer with proper maintenance. For instance, wood frames can be painted to protect them against rotting.
Wood Clad
This is used to clad windows with aluminium or vinyl frames to make them more weather resistant. These clad windows are more attractive and have lower maintenance as well. However, they are not available in many colours, unlike some other frames.
0 comments:
Post a Comment