Sustainable Design Issues
The purpose of a protective coating system is to greatly extend the service life of a building substrate.
All important ecological effects should be taken into account when choosing coatings, not just Volatile Organic Content (VOC).
Hazardous air pollutant (HAP) emissions, solid and liquid waste emissions, thermal energy demands in manufacturing and application and distribution, and durability and performance of the finished material should be impartially compared with alternatives.
All building materials should be assessed for embedded energy and CO2 emission, balanced with their expected life span. For example, whilst concrete emits only water whilst curing, cement production is a significant source of CO2 emission (estimated to be about 5% of all CO2 emissions from human sources worldwide). Yet, if the concrete is continuously protected from acid attack by atmospheric CO2 (the cause of concrete spalling), it can, in fact, last indefinitely.
The argument also goes for steel, a lighter, stronger and faster building material than concrete, and has the advantage of being 100% recyclable at the end of its life.
Steel and concrete can last almost indefinitely when intelligent long-term design strategies for protecting them from degradation are incorporated, namely protecting and maintaining them with the right Dulux Protective Coatings products.
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Dulux Head Office
The distinctive shape of the Dulux Head Office offers shade for every window on each level. All coatings and adhesives used were selected to minimise VOC and formaldehyde emissions.