Sustainable Construction & Energy Savings
Ecoscreed provides high performance flowing screeds that incorporate 100% replacement of natural sands by recycled vitrified or amorphous glass. The company can offer a total “green” specification for any flooring contract with the most "eco-friendly" energy saving flowing screeds on the market to day.
Each tonne of discarded container and bottle glass in the UK requires 5 cubic metres of land-fill space that will not decompose. Our products use 1.25 tonnes of recycled glass per cubic metre applied and the binder part of the screed is derived from desulphurised gypsum (DSG), a by product of the emissions cleaning process known as flue gas desulphurisation at coal fired electricity generating stations.
Specify “ECOSCREED” and save 5m3 cubic metres of land-fill for every 1 cubic metre of screed applied. The Building Research Establishment (BRE) maintains that 39% of the “eco-points” in a building are derived from the floor construction and that 1 “eco-point” could be saved for every 1.38 tonnes of sand not quarried and for every 1.3 tonnes of glass not going to land-fill.
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The ECOSCREED STANDARD and ECOSCREED RAPID each use up to 100kg of recycled
glass per square metre at 50mm thickness. The ECOSCREEDS use recycled bottle and container glass entirely derived from UK glass collections that would otherwise go
to land-fill sites. The glass is fully recycled, crushed, graded, sieved and washed to provide
an ideal “eco-sand” aggregate for our screeds.
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Glass Cullet |
Recycled "eco-sand" |
Typical Underfloor Heating |
ECOSCREED final finish. |
Energy Saving & Carbon Offsetting
When dealing with a substance being heated up (ie. a screed containing under floor heating pipes) the amount of heat energy (q) gained or lost is equal to the mass of the substance (m) multiplied by the Specific Heat Capacity(Cg) multiplied by the change in temperature (final temperature Tf - initial temperature Ti)
q = m x Cg x (Tf - Ti)
Typically specifications require screeds over under floor heating pipes to be generally 65mm for Sand & Cement screed and only 50mm for Flowing Screeds:
ECOSCREED STANDARD (Flowing Screed) = 1m2 x 1.85kg x 50mm = 92.5kg/m2 @ 50mm
SAND & CEMENT = 1m2 x 2.2kg x 65mm = 143kg/m2 @ 65mm
Heat energy q required to heat up 1m2 at 50mm Ecoscreed Standard floor to 20oC = 92500 gms x 0.9037 J/g C x 20 = 1,671,845 Joules
Heat energy q required to heat up 1m2 at 65mm Sand & Cement floor to 20oC = 143000 gms x 0.9914 J/g C x 20 = 2,835,404 Joules
Therefore it takes 1,163,559 Joules less energy to heat up 1m2 of Ecoscreed Standard floor from 0oC to 20oC compared to a Sand & Cement floor.
SCREED TYPE |
AVERAGE HEAT CAPACITY
J/g C (Q2000 method 0 - 20oC Range) |
THERMAL CONDUCTIVITY W/MK (QTM-500 Method Room Temperature 18oC) |
Ecoscreed Standard (1.85kg/mm/m2) (A1) |
0.9037 |
0.8063 |
Ecoscreed Rapid (1.85kg/mm/m2) (A2) |
1.0360 |
0.6845 |
Sand & Cement (2.2kg/mm/m2) (A3) |
0.9914 |
2.2461 |
Anhydrite & Sand (A4) |
0.7642 |
2.0710 |
Alpha-hemihydrate & Sand (A5) |
0.9063 |
1.8756 |
Amount of heat energy (q) to heat 1m2 from 0oC - 20oC |
Ecoscreed Standard (q)= 1671KJ
(50mm thickness) |
Sand & Cement (q) = 2835KJ
(65mm thickness) |
Based upon the heat capacity and thermal conductivity results above the use of Ecoscreed Standard in association with any under floor heating system will result in considerable on going energy savings in the running of the heating system for the entire lifespan of the building. The results demonstrate that a 50mm thickness of Ecoscreed Standard floor requires 1163 KJ less energy per m2 to heat up to 20oC than a Sand & Cement screed at 65mm thickness. In addition the Ecoscreed Standard cools down 2.78x slower than the Sand & Cement floor due to it having a lower thermal conductivity (ie 0.8063 W/MK compared to Sand & Cement 2.2461 W/MK.)
Effectively, this means that Ecoscreed Standard screed takes less energy to heat up to the required temperature and 2.78x less energy to maintain the floor at the required temperature compared to a Sand & Cement floor.
Are YOU REALLY serious about sustainable construction?
ECOSCREED SAVES ONGOING ENERGY COSTS AND REDUCES CO2 EMISSIONS !!!
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