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Retrofit Wall Insulation
WHAT IS CAVITY WALL INSULATION - Retrofit Wall Insulation ?
Bradford Cavity Wall Insulation is a specially treated water repellent Rockwool.
Rockwool is an insulation made from molten rock. It provides excellent thermal and acoustic insulation.
The water repellent Rockwool has been tested by BRANZ (an independent test laboratory). This test showed the cavity wall insulation did not transmit moisture. It has been approved by the Building Regulations Advisory Committee for use in brick veneer and double brick veneer walls.
Test certificate No. V03/05.
HOW IS IT INSTALLED?
A special high performance blowing machine is used to pump the insulation into existing brick veneer walls.
Access to the cavity is gained by lifting a tile over the cavity and dropping a special hose to the bottom of the cavity. The hose is gradually lifted as the cavity fills.
Inaccessible cavities can be reached by drilling a 25 mm hole through the mortar joint and using a special cone to pump the Rockwool in through this hole. The hole is then remortared closely matching the mortar colour.
FEEL THE DIFFERENCE IN YOUR HOME
Between 30 - 50% of all heat loss is through the walls even if your ceiling is adequately insulated. By installing Bradford Cavity Wall Insulation you can stop about 85% of this heat loss or gain through your walls.
DON'T FORGET THE DOUBLE BRICK WALLS
Did you know a double brick wall losses and gains almost as much heat as a brick veneer wall? The only difference is the lag time in this process. The R rating (Thermal Resistance) of a double brick wall is R0.45 compared with R0.4 for brick veneer.
An insulated double brick wall will perform better in winter because heat stored in the inner layer of brick will not be lost to the outside once the wall is filled with Bradford Cavity Wall Insulation. The reverse is true in summer.
INCREASE YOUR ENERGY EFFICIENCY RATING
Bradford Cavity Wall Insulation will increase the ENERGY EFFICIENCY RATING of your home in most cases by one star. It adds considerable value to your home especially for resale purposes.
THE BENEFITS
Be more comfortable all year round.
In Winter
Insulation reduces heat loss, keeping your home warmer.
In Summer
Insulation reduces heat entering through the walls, keeping your home cooler.
Save Money
Wall insulation makes heating and cooling much more efficient - your energy bill with ceiling and wall insulation can be cut by up to 30-50% so the insulation soon pays for itself.
Save the Environment
Reducing energy consumption cuts down on the emission of carbon dioxide green house gasses - a responsibility for us all.
Noise Control
Wall insulation is a good acoustic insulation and will reduce noise entering the home from the outside. Cavity Wall Insulation increases sound reduction in brick veneer walls from Rw51 to Rw59.
Fire Safe
Bradford Cavity Wall Insulation will not burn and actually retards the spread of flame. Bradford Rockwool has a 4- zero fire rating - when tested under Australian Standard 1530 Part 3 - m1976. This is the best possible rating.
Condensation Control
Bradford Cavity Wall Insulation will reduce or eliminate condensation on internal walls. No condensation means no mould and less frequent repainting of internal walls.
We are so confident Bradford Cavity Wall Insulation will be effective and long lasting that we give you a written guarantee for 100 years!
Bradford Cavity Wall Insulation is guaranteed to be resistant to the movement of water from the outer to the inner leaves of the wall and will not settle, shrink or decay.