SCOPE OF SERVICES
Constructions (Pvt) Ltd undertakes comprehensive consultancy services
including feasibility, preparation of client’s brief, outlines
and schematic architectural design, structural, electrical, mechanical
and other services proposals and the bills of quantities and estimates,
tender documents, calling of tenders, tender evaluation and recommendations
and post contract construction management. The Principal Architect
personally involves in all those stages and team is dedicated to
assure a high standard final product.
In building houses, the company believes in developing close relationship
with clientele, understanding their aspirations, offering personal
attention and giving them environmental friendly, cost effective,
innovative design solutions thus creating positive influence on
their life styles.
WORKING WITH CLIMATE
It is understood that working with climate is the best way to lead
the present development practice. Taking what we need and rejecting
what we don’t with minimum disturbance to the nature is considered
‘working with climate’. There are six main principals
used by Green Earth®
Constructions (Pvt) Ltd;
1. Working with the Sun
A fundamental principle of solar design is that it aims to maximise
the solar gain in the cold regions and minimise it in hot regions.
To achieve this solar design combines five strategies- Glazing,
Orientation, Thermal Insulation, Sun Protection and Thermal mass.
2. Stack Effect
The powerful suction created by escaping warm air from a building
is called the Stack Effect or the Chimney Effect. Careful control
of Stack Effect can produce a low cost and effective level of natural
3. Thermal zoning
In Tropical Zone’s we prefer the houses to be cooler. This
concept uses essential places like living, dining and bedrooms away
from Sun’s orientation and other non essential areas on Sun’s
4. Embodied Energy
This considers environmental impact of the materials that goes into
the construction. The embodied energy of a building material is
the energy that has been required to extract, process, and manufacture
and then to transport it to the building site. The lowest embodied
energy is in materials that require only simple processing (Timber
needs 180kWh/m3, where as Steel needs 57,000kWh/m3) or those made
from salvaged materials or local natural materials, which require
virtually no energy.
5. Use of Renewable Energy
Using of Renewable energy resources such as Solar electricity (PV),
Solar thermal and Wind for essential energy needs such as lighting
and heating requirements of buildings and homes not only brings
energy independence but also long term cost savings.
6. Re-use of water
Re-use of water collected from Rain water (for toilet/ wash rooms)
and Grey water (garden maintenance) are the common use of this methodology.
Solar Water Heaters
Use the sun to heat the hot water in your home and you will be
saving money as well as doing your part for the environment. Conventional
electric water heaters are often the biggest energy users in the
home contributing up to 7 tonnes of greenhouse gas per year.
Solar Water Heaters are manufactured at a state of the art plant
in suburbs of Colombo and currently being upgraded to obtain ISO
Main features of the product includes :
- Hot Water Storage Tanks made of High Grade Stainless Steel
which is corrosion and maintenance free
- The Solar collector panels of Green
Earth® are the largest panel area for similar products
available in the Sri Lankan market. This ensures high efficiency
even during low sunlight.
- Best quality at the most affordable price in the market
- Available in different colours (Beige, Silver, Brown, Green
- Solar collector panels are made of copper, a high grade conductor
of heat and corrosion free material.
- Insulation to reduce heat loss and longevity of warm water
the during non usage
- 10 year manufacturing warranty
- Free installation
- Green Earth®
Solar Water Heaters are available in range of capacities from
100 Litre (domestic) to 600 Litre (industrial) to suit different
Solar Electricity (PV)
Solar photovoltaic (PV) power is the same technology that powers
some calculators and watches. Photovoltaic (PV) cells are made up
like a sandwich - two layers of silicon containing special chemicals.
Sunlight is used to charge electrons in the silicon layers. The
energised electrons move through the cell and flow into a wire,
creating an electric current.
Solar electricity/ lighting for domestic and industrial use
The first step in solar electricity/ lighting is to assess your
power needs. The Appliance Power Rating Guide, which will help you
establish you daily power consumptions.
DC Loads Watts Amps at 12V
Fluorescent Light 5 - 25 1.00 – 2.5
12 volt TV 50 4.1
Water Pump 72 6.0
Cell Phone 6 0.5
Based on an average sunlight per day and the required power need
will provide you with a custom design to your requirements.
also manufactures standard domestic use power lighting models, priced
from LKR 60,000 onwards.
Ideal solution for
- Rural electrification
- Cabin or remote Bungalows
- High common usage lighting areas in buildings/ houses
- Telecom towers – as means of energy independence
Solar Street lights
Solar area lighting provides outstanding solutions for public area
and security lighting.
Solar area lighting is a great way to provide lighting to public
areas and for security lighting. They remove the need for digging
expensive trenches and can save thousands of dollars in capital
costs for new lighting.
Solar street lights have applications in:
- Remote village gathering areas
- Parks/ Play grounds
- Beach side board walks/ pathways
Advantages of using solar energy
- Electricity is free once the equipment is installed.
- Energy from the Sun is renewable
- It is very useful for remote areas that are not connected to
the main electricity grid
- Also, brings energy independence, for grid connected entities
- It is environmentally safe (ie it produces no greenhouse gases)
- South Asia is exposed to heaps of sunshine..!