Cross-section of an external house wall with a window and eaves. H = the height from the  window sill to the bottom of the eave. The distance from the bottom of the eave to the top of the window is 30% of H. The width of the eave is 45% of H for latitudes up to 27.5 degrees south (ie Brisbane). This eave-to-window relationship allows winter sun to enter the window but blocks summer sun.

Cross-section of an external house wall with a window and eaves. H = the height from the window sill to the bottom of the eave. The distance from…

A diagram shows three different types of windows: a sliding window, louvres, and a casement window. A sliding window allows 50% of the window space to be open for breeze; louvre windows can be opened up to 95% to allow a breeze; and a casement window re-directs the breeze through it.

PASSIVE COOLING A diagram shows three different types of windows: a sliding window, louvres, and a casement window. A sliding window allows of the window space to be open for breeze; louvre windows can be opened up to to allow a breeze;

In summer, the sun's arc through the sky is close to a vertical plane casting small shadows. In winter, the sun's arc is lower in the sky, casting longer shadows.

ORIENTATION In summer, the sun's arc through the sky is close to a vertical plane casting small shadows. In winter, the sun's arc is lower in the sky, casting longer shadows.

A diagram of a house in winter shows that during the day, heat from the sun enters the house and is stored in the house’s thermal mass. At night, the heat is released inside the house.

A diagram of a house in winter shows that during the day, heat from the sun enters the house and is stored in the house’s thermal mass. At night, the heat is released inside the house.

A cross-section diagram of the edge of a thermal mass floor with a lightweight frame. A brick or block wall is filled with insulation separating it from the stud frame. This is covered with sheeting or boarding on the outside. The thermal mass floor is deepest at the point where it lies underneath the wall.

A cross-section diagram of the edge of a thermal mass floor with a lightweight frame. A brick or block wall is filled with insulation separating it from the stud frame. This is covered with sheeting or boarding on the outside. The thermal mass floor is deepest at the point where it lies underneath the wall.

Perspex Acrylic Secondary Double Glazing

If you are looking for a cost effective DIY secondary double glazing option, please give us a call. We can cut perspex acrylic panels to your exact sizes - easy fix & no wasteage.

A line drawing of a cross-section of a building, including passive solar control, high levels of insulation, a slab on the ground and insulation to the slab edge in cool and cold climates. In summer, sunlight hits the building from nearly straight overhead, but in winter, sunlight hits the building at a 45 degree angle. The solar gain at the slab surface may be 21 degrees Celsius. The ground temperature contours at 3 metres deep might range from 16 to 19 degrees Celsius annually.

The cross-section of a home shows a slab set on the ground. The angle of the eaves prevents summer sun directly reaching the windows. But wi.

A column chart shows the main sources of air leakage around the home as percentages of total air leakage. The greatest air leakage is from floors, walls and ceiling, at 31%. Ducts are the next highest leak source, at 15%. The fireplace is a source of 14% of air leakage, followed by plumbing penetrations, at 13%, doors, at 11%, windows, at 10%, fans and vents, at 4% and 2% of air leakage from electric outlets.

Sealing your home against air leakage is one of the simplest upgrades you can undertake to increase your comfort while reducing your energy bills and carbon emissions by up to

Surfmist® | COLORBOND® steel  Surfmist® embodies qualities of freshness, purity timelessness and independency. Snow, the mist from the sea and surf, pure white sand, and the billowing sails of yachts all remind us of this colour.

Surfmist® | COLORBOND® steel Surfmist® embodies qualities of freshness, purity timelessness and independency. Snow, the mist from the sea and surf, pure white sand, and the billowing sails of yachts all remind us of this colour.

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