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Regulating internal temperature should take a holistic approach.
“The type of roof materials used and Product selection depends on client’s
positioning of houses all contribute to the specifications such as, how long they’d
performance of the envelope. It is always like the product to last and how they’d
advisable to try and insulate as close to like it to work. “It is important to
the heat source as possible. This always understand the products performance
offers the best solution,” Jeffery advises. value. Some products will last the life
It’s all in the roof
time of a building,” he says.
Factors such as gravitational
“Roof coverings are ordinarily limited to compaction and moisture retention can
four types – thatch, tiles (such as, reduce the life span and performance of
concrete tiles, natural slate tiles and the product. Jeffery cautions that
ceramic tiles), steel or concrete decks. I there is little maintenance that can
am only familiar with steel and concrete,” revert longevity.
Jeffery says.
design of
“ the The
roof plays a
role in the
effectiveness
of temperature
regulation.”
Its important to consider how the
He explains that concrete is insulated insulation is installed as Jeffery describes
either above in a warm deck application that this aspect can hamper the products
or below in a cold deck application using performance. “Independent testing has
rigid insulation. Steel on the other hand revealed that an overall reduction of up to
uses heat reflective coating technology. 75%. This means that 135mm insulation
“This is, in essence, a specialised paint material should offer 3.4Km²/W, when
system that pigments filter the UV light compressed in application it with only
when above a certain temperature,” achieve an approximate 1.7Km²/W, for
he says. example,” he says.
See more on page 20
18
JUNE 2018
RESIDENTIAL // COMMERCIAL // INDUSTRIAL