“Cornerstone Eco Homes Ltd” utilize the only the best energy efficient and sustainable
products in the market and are Licenced to use the “Cornerstone Structural Insulated
High insulation properties, & proven in the Christchurch Earthquakes to keep the
occupants safe and secure as the “bones” along with the Cornerstone fully insulated
floor slab the original & first of it’s kind in the market along with the highly
insulated roof creating an airtight envelope minimising energy the requirement.
Cost effective Cornerstone Structural Insulated Panel, is the most cost effective
way to build, very competitive with standard building systems. If you then add on
the savings from lowered heating and cooling cost you have more money in your pocket
at the end of the day.
BRANZ testing revealed exceptionally high bracing units against earthquake and wind.
The polystyrene part of the equation has revealed its strength and the concrete post
and beam construction bonds the system together. The way in which the steel is tied
to the foundation steel and stapled over the top plate acts as a cyclone tie.
The insulation of the Cornerstone building system has an exceedingly high minimum
R-Value of 4.3 for a 200mm thick wall and the R-Value of 5.75 for a 250mm thick
wall. This allows the building owner to maintain the comfort level they require
a lot longer.
The large panels, 1.2 metres (or whatever stud height is required), fit together
creating a large area of wall quickly and simply.
Polystyrene is CFC and HCFC free in all stages of manufacture. "Objective scientific
studies have demonstrated the benefits to the environment of using Polystyrene compared
to other materials"
BRANZ testing revealed that the Cornerstone building system functions very well
in fire conditions. Structurally the system did not fail, and the insulation factor
of the polystyrene delayed the heat transfer through the wall. The gasses emitted
from burning polystyrene are less harmful than those given off burning white pine.
A fire retardant is used in the manufacture of expanded polystyrene.