Types of Glass:
Pilkington K GlassT
This type of glass is the leading solution in
insulation in home & public building windows, Pilkington K Glass is a low
emissivity coated glass which is easily stocked, processed and installed by window
installers throughout the industry. Pilkington K Glass has been in
production for more than 15 years making it the trusted solution for meeting energy
efficiency Building Regulations essential for when new windows or conservatories are added
to a household.
The glass usually forms the inner pane of an insulating glass unit without a window. The
coating is produced in order to reflect heat back into the room whilst also the heats from
the sun known as passive solar gain enter the house. The glass helps windows to achieve high
Window Energy Ratings to demonstrate compliance in connection with Building Regulations Part
- The Energy trust sees this as a cost efficient energy saving method keeping heat inside
the house and allowing heat to enter the house through the windows.
- Originally designed with Windows in mind. Keeps the Windows without heaters comfortable
for increased parts of the year over normal double glazing.
- Helps to achieve high Window Energy Ratings.
- Also has the ability to have laminate added in order to increase security. It is
estimated that 1/3 of burglars enter a house through the windows.
How it Works
The glass in your windows consumes heat then radiates it
again on the colder, outside, surface. The Pilkington glass has a so-called low emissivity
coating which increases insulation.
The low emissivity coating is a poor radiator of heat. So the heat absorbed by the coated
glass does not travel to the outside of the house. Instead the coating reflects the heat
back into the room, keeping the heat inside as opposed to going outside.
Windows incorporating Pilkington Glass allow heat from the sun and keep heat inside, making
it easier and more cost effective to keeping your home warm.
Energy Saving Glazing
Energy saving glass is known for keeping the heat
inside the house saving the energy used by the household. As an estimation the amount of
heat loss from a home in houses with single glazing is around 20%. Energy saving glazing is
therefore known for cutting heat loss as well as pollution and reducing problems with
Double glazing works by trapping air between the two pains. If finances dictate, the rooms
which lose the most energy should be considered for energy saving windows first.
Installing double glazing can cut your heating bills by around �90 a year as well as 620 kg
of CO2 - that's 3 buses full of CO2 each year. If everyone in the UK that could install
double glazing, it would save �660 million a year and 4.5 million tones of CO2.
Self Cleaning Glass
Self-cleaning glass is an ordinary float glass with
a special photocatalytic coating used to maintain the cleanliness of the glass. The glass is
made by chemically bonding and integrating a microscopically-thin surface layer to the
outside surface of the double glazing glass. The integrated coating reacts with the rays
from the sun to gradually and continuously break down organic dirt through what is called a
photocatalytic effect. The result will be a significantly cleaner surface than normal
In other words photocatalytic means that the coating on the outside of the glass absorbs the
sun's ultraviolet rays. This breaks down the dirt on the surface of the glass by causing a
reaction loosening the dirt. This type of glass also has hydrophilic properties, meaning
that rain runs down the pane of glass as a sheet, washing away the dirt instead of, as with
normal glasses, leaving the dirt behind.
Warm a Glass
Warm-a-GlassT construction uses Pilkington K low emissivity
glass is coated to reduce the energy leaving the household. The unique design and the
material is designed specifically for this reason, allowing the home to retain more warmth
thus saving on energy bills.
Patterned glass is a type of glass used in windows with
different patterns on it. The direction of the reflection on the glass depends on the size,
shape and depth of the patterns. Patterned glass usually transmits less light than normal
glass through windows. It can be used for a variety of applications: interior design and
decorations, furniture, windows, street furniture etc.
Patterned glass is produced through a rolled glass process.
The semi-molten glass is squeezed between two metal rollers in order to establish this
shape. The bottom roller is engraved with the negative of the potter. Thickness is
controlled by adjusting the gap between the rollers.
Toughened or Tempered Glass:
Toughened glass Is a type of glass that has
been treated chemically in order to be stronger than everyday glass used in windows. It will
usually shatter into small pieces, rather than sharp shards, when broken increasing the
The term toughened glass is generally used to describe fully tempered glass but is sometimes
used to describe heat strengthened glass as both types undergo a similar thermo process in
order to make the glass tougher.
Heat strengthened and fully tempered are two types specialized glass. Heat strengthened glass
is twice as strong as normal glass whilst fully tempered glass can be up to six times the
strength of normal glass and withstands heating in microwave ovens.
It is to note that while the strength of the glass does not change the deflection, being
stronger means that it can deflect on impact. Annealed glass deflects less than tempered
glass under the same load.
Secondary Double Glazing:
Secondary glazing windows were designed in
order to improve the living/working environment.
Secondary glazing windows were designed in order to improve the living/working
The windows are specifically designed to have the
ability to deal with different types of noise pollution. Different sounds penetrate glass in
varying ways. The low frequency of a lorry engine behaves differently to high performance
The term stained glass refers to the material of coloured
glass used in windows. Throughout its history the term "stained glass" was applied almost
exclusively to windows evident in churches. Although traditionally made in flat panels and
used as windows, the creations of modern stained glass artists also include
three-dimensional structures and sculpture.
As a material the term stained glass generally refers to glass that has been coloured when it
was produced. The coloured glass is usually compiled into stained glass windows in which
small pieces of glass are arranged to form patterns. They are typically held together with
strips of lead. The term stained glass is also applied to windows in which all the colours
have been painted onto the glass and then annealed in a furnace.
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