Insulation
Warmer in Winter / Cooler in Summer
The CHS team have many collective years of experience in insulation. In previous roles, we’ve overseen quality assurance for the retrofit of insulation into over 20,000 homes nationwide.
All insulation installs are audited to ensure that you receive the best service possible, and get the full benefit of the product you have paid for.
We know insulation.
Why Insulate?
Insulation helps keep your house warmer in winter and cooler in summer. Insulation reduces the risk of condensation, which means less mould and mildew and a healthier environment for occupants.
Heating and cooling can account for 40% of energy cost in an average home. Insulating your home can stop up to 70% of all heat loss. A well-insulated home is easier and cheaper to heat.
Heat loss through the thermal envelope in a typical uninsulated home:
Ceiling Insulation
Installing ceiling insulation is the most cost-effective place to start as the majority of heat loss occurs through this part of a house. Installing ceiling insulation alone can save you up to 20% of your energy bill.
We offer a range of polyester or fibreglass ceiling insulation to meet your requirements, including blanket and segment products. We install all ceiling insulation to the New Zealand Standard NZS4246:2006 Energy Efficiency.
Wall Pads
Walls in an uninsulated house typically cause 18-25% of heat loss.
If you are renovating, we can install wall pads before you line the walls. We offer a range of polyester and fibreglass solutions. Wall pad installation is carried out to the New Zealand Standard NZS 4246:2006 Energy Efficiency
Wall Insulation
Underfloor insulation is designed to be installed into new and existing timber-framed buildings.
We offer a range of durable and cost-effective polyester underfloor insulation solutions, and we offer a range of thermal performance (R-rating). All of our underfloor products are made from 100% polyester, have a 50 year durability rating, and won’t affect electrical wiring (unlike polystyrene products).
Our polyester insulation is installed between the joists hard up against the floor, and is stapled into the sides of the joists to avoid compression. All underfloor insulation is carried out to the New Zealand Standard NZS 4246:2006 Energy Efficiency.
Ground vapour barrier can reduce moisture and mould issues caused by rising damp, especially in enclosed underfloors with little ventilation.
Polythene sheeting (at least 0.25mm thick) can be laid on the ground under houses with timber subfloors, to help reduce moisture problems both under the home and inside it by restricting the evaporation of moisture from the ground into the subfloor space.
BRANZ [i] report that 0.4 litres of water can evaporate from 1m2 in 24 hours – that’s 60 litres/day on average for a 150m2 house. Around 1.2 million New Zealand houses have suspended timber ground floors.
[i] The BRANZ information quoted is found in the BRANZ Builder’s Mate publication, Issue 64, Feb 2014.
GVB Installation
Our Process
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2
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3
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