1) The document discusses guidelines for selecting doors and windows for greener and more sustainable construction. It focuses on uPVC as a material, which provides quality insulation and helps conserve energy through its low conductivity. 2) uPVC frames have the lowest U-value, meaning the lowest heat transfer. They also have tight seals that minimize air leakage and cooling costs. uPVC windows and doors are designed to reduce heat loss while maintaining aesthetics. 3) Proper selection of durable uPVC brands, along with quality fabrication, installation, and maintenance can enhance the longevity and performance of windows and doors. This supports more sustainable construction practices through energy efficiency.

1. R.N.I No. MAHENG/2007/24192
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August 1, 2018 • Pages 112 • Rs 200 • Vol. 11 Issue 11 • Mumbai • ISSN 0975-3990
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Choosing right
equipment
loans
Modern fenestration
towards greener, sustainable
construction
Trends in
bulk material
handling
Essential tips
for surface
coatings
Cutting and
welding: need for
quality construction
Right equipment
selection: key to
success

2. Doors and windows
60 B2B Purchase August 2018
PROCUREMENT GUIDELINES
Modern fenestration towards greener,
sustainable construction
Selecting doors and windows can be
challenging, especially in the midst
of different designs, types and functions.
Here is a guide to make selection of doors
and windows easier.
Complementing energy-efficient
construction
Quality insulation
Amongst all the fenestration products,
the uPVC frame material is the one with
the lowest U-value. It means lowest
heat loss or heat transfer from the air-
condition area towards outside. Further,
due to the perfect gasket sealing which
are used in car doors and refrigerators,
uPVC windows are having the lowest air
leakages, which surely saves ones cooling
cost. Mario Schmidt, Managing Director,
Lingel Windows and Doors Technologies
Pvt Ltd, says, “uPVC is the go-to material
owing to its ability to prevent energy loss
while providing unparalleled comfort.
uPVC windows are ideal for hot weather.
Our doors are designed to conserve
energy and provide protection against air
and water infiltration.”
An added benefit of the uPVC
products is that the windows are
fireproof, waterproof, boasts of low
maintenance and have great aesthetics.
The windows and doors are designed
to minimise the heat loss by combining
a range of aesthetic factors and high-
quality materials.
Energy-efficient strategies
By taking advantage of local climate and
site conditions, the company’s designers
incorporate passive solar heating and
cooling and energy-efficient landscaping
strategies in the product. According to
Manish Bansal, Director and CEO, Window
Magic India, “uPVC as a product itself is
an energy efficient product with thermal
insulation properties. It doesn’t transfer
temperature from inside to outside,
or outside to inside. uPVC is a natural
insulator, sealing cooled air inside your
building structure.”
Contributing to energy saving
Amir Hashmi, National Head - Marketing
& Sales, Profine India Window Technology
Pvt Ltd says, “The extrusion process of
Koemmerling uPVC window and door
profiles is relatively energy efficient
compared with other materials. No
matter in which climate the windows and
doors are installed, they contribute to a
comfortable atmosphere in your home.”
The uPVC window and door systems are
designed with three to eight chambers
giving better U-Values finally leading
to conservation of energy that provides
efficient thermal insulation.
Low thermal conductivity
CORA windows are ecologically friendly
because they prevent the heat and
energy loss that occurs with standard,
traditional and window frames. Sundip
Kumar, Director, SCL Group says, “Our
doors and windows can save up to 30 per
cent on energy cost. Since the thermal
conductivity is very low, you could expect
best results of air-conditioning as the air
loss is minimised in CORA uPVC windows.”
Uniqueness
Highly-efficient performance ratings
Bansal from Window Magic India
says, “We use galvanised steel that
superlatively enhances the safety and
security of our products. Our technical
support and services have given us the
good opportunity to take giant strides
forward.”
Thermal insulation and thermal
resistant
CORA Windows are pioneers in the
manufacturing of premium grade uPVC
windows. CORA Windows offers distinct
characteristics and advantages over other
fenestration materials. And one of the
features is enhanced security. Sundip
from SCL Group says, “CORA Windows
exhibits high thermal insulation and are
thermal resistant. The extreme longevity
of our product prevents it from rot and
hard-wearing. The actual frames are
strong enough that would be virtually
impossible to break in. It is resistant to
corrosion caused by salt-laden air making
them ideal for coastal properties.”
Fenestration products: under one roof
Schmidt from Lingel informs, “In terms of
Quality insulation and effective strategies to conserve energy are the
prime determinants of enhancing durability.
Continued to 62 g

3. Doors and windows
62 B2B Purchase August 2018
PROCUREMENT GUIDELINES
products we are the only one company
providing all fenestration products
under one roof which includes Lingel
uPVC windows, which is our flagship
product, aluminum windows 6.0 German
engineering made in India, aluminum
thermal broken made in Germany,
hardwood timber windows made in
Germany, additionally fabrication and
installation done by our own team.”
Host of benefits from Koemmerling
Koemmerling has played a pioneering
role in developing innovative and high
quality uPVC window systems around
the globe. It is essential to understand the
composition of uPVC profiles that makes
it durable. Hashmi from Profine India says,
“Koemmerling has exclusively developed
unique formulation with high performance
compound ‘KOMALIT Z’. This compound
with high UV properties performs to
worldwide standards for colour retention,
strength, durability and heat stability.”
The uPVC window and door systems
of the company have been independently
tested for performance and quality
throughout the world to ensure the
legacy they have created. They meet and
often surpass the requirements of relevant
standards for uPVC windows worldwide.
Koemmerling window and door systems
offer a host of benefits like efficient
thermal insulation, high sound insulation,
and maximum water tightness. The
systems are also termite resistant and 100
per cent lead free which makes the product
environment friendly and sustainable.
Enhancing durability
Following measures are given by Hashmi
to enhance durability of uPVC doors and
windows.
• Selection of a good brand
There are many uPVC profile brands
available in the market claiming to
be of high quality; therefore, it is
consumers’ duty to check their claim
through valid certificates they have for
the quality tests done on their profiles
and past projects.
• Fabrication with quality hardware
Fabrication is very important stage as it
ensures the strength and effectiveness
of the product. Authorised fabricators
having right machine, use of quality
hardware and skilled workforce, ensure
the quality and durability.
• Installation
Installation by skilled manpower with
professional tools and proper sealing
ensure the look, performance and
durability.
Choosing right uPVC for durability
uPVC window and door frames are a
unique construction alternative that
offer proven durability and performance.
uPVC material is much stronger than
traditional wooden doors and windows
partly due to the manner in which they
are constructed. This makes them long-
lasting and resilient. Bansal suggest,
“uPVC is an exceedingly durable material
and ensures your doors and windows will
stand the tests of time and never lose
their shape. All we need to do is to choose
the right uPVC which is appropriate and
durable for your requirement.”
uPVC is a great material for those
looking for a long-lasting, low-
maintenance frame. To enhance the
durability of doors and windows Schmidt
outlines the following steps.
• Lubrication
It is highly advised to lubricate all
moving parts like hinges and metals
components at least twice a year.
Moderate amount of light silicone
lubricant can be used for stainless steel
hinges and petroleum jelly for metal
components.
• Use prescribed accessories
Only use accessories provided with
uPVC doors and windows and never
use anything from outside. Never
use wooden screws for fitting any
accessories of uPVC doors and windows.
If one is not able to fix them, better to
call a technician for getting it fixed.
• Gasket maintenance
Over time the rubber seals on windows
and doors compress. In order to
maintain flexibility in gaskets, it is
advised to powder the seals with talc at
least once in a year. n
Our doors are designed to conserve energy
and provide protection against air and
water infiltration.
Mario Schmidt, Managing Director, Lingel Windows
and Doors Technologies Pvt Ltd
All our products follow similar manufacturing
process and are compliant with the latest
standards of quality.
Manish Bansal, Director and CEO, Window Magic India
The extrusion process of Koemmerling uPVC
window and door profiles is relatively energy
efficient compared with other materials.
Amir Hashmi, National Head - Marketing Sales, Profine
India Window Technology Pvt Ltd
CORA Windows exhibit high thermal insulation
and are thermal resistant.
Sundip Kumar, Director, SCL Group
60 f
Modern fenestration towards greener, sustainable construction