Frequently Asked Questions
The primary purpose of insulation is to restrict the movement of heat energy. Therefore, when it is hotter outside than inside, the insulation will reduce heat energy moving into living spaces. Conversely, when it is warmer inside than outside, insulation will reduce heat energy leaving your living space and being lost to the outside environment.
When people refer to their insulation, they are normally talking about the ‘bulk’ insulation (batts or loose) sitting on top of their ceiling. For most common ceiling insulation types, for the insulation to work properly it needs to be of sufficient thickness (typically at least 18 – 20 cm) and installed so that there are no gaps (i.e. you shouldn’t be able to see your ceiling sheets because they should all be covered by insulation).
You should consider improving your ceiling insulation if:
It is not bulging well above your ceiling joists
It is patchy
There is no insulation
Your roof insulation should look like it is bulging well above the ceiling joists and not like it is packed down and it should cover every practicable area of your ceiling with as few gaps as possible. Insulation works by forming thousands of tiny pockets of air that restrict the movement of heat energy, so if it not thick enough or it has been compressed, it may not be performing as it should.
Yes, EEC is a licensed building works contractor, and our experienced team will provide a quick and easy installation process for you.
The energy efficiency centre can install insulation into both new homes and existing homes. Generally speaking, if we are working with an existing home we would normally only be able to install insulation into the roof space unless there is exposed stud work. For new builds we can also install insulation into both internal and external walls before internal gyprock sheets are applied.
Since the goal of insulation is to restrict the movement of heat energy, it is really important that insulation provides a good seal between the inside and outside environments. Therefore, if your existing insulation is flat and level, such as some old rock wool batts, we can easily overlay new batts over the old.
However, if your existing insulation is wavy or uneven then it is unlikely the new insulation will form a good seal. In this case, we would generally advise that putting new insulation over the old would be a waste of money and the best option would be to remove the old insulation and replace with new, thicker batts that come with a lifetime warranty.
Vacuuming of your roof space would be recommended in the following cases:
- Where there is existing debris that may pose a fire risk or prevent a seal between the insulation and the ceiling sheets:
- Where fine particulate matter from the roof space is causing respiratory issues for occupants
We can install underfloor insulation if there is reasonable access to the underfloor area. For example, would there be at least 1.5 – 2 feet space between the ground surface and the underside of the house? Would there be space for a person to slide under and lift batts into place?
It is very common for us to install insulation into the underfloor of homes on sloping ground where construction involves the use of stilts.
When installing insulation, remember to think about the acoustics in your home as well as the temperature control. Bad soundproofing results in a lack of sleep, increased stress and irritability, and a reduced quality of life. EEC can help by providing acoustic insulation to internal and external walls, ceilings and underfloor areas.
Most homes in Australia have standard ceiling joist spacing. Glasswool batts are cut to fit within these standard spaces. As a result, they fit perfectly in most homes and provide maximum effectiveness all year round. Insulation works most effectively when there are no gaps at all; if 5% of the ceiling space remains uninsulated, it can mean that the effectiveness is reduced by up to 50%. EEC’s trained installers place the batts between the ceiling joists to fit snugly, ensuring that there are as few gaps as practically possible.
Glasswool batts are made from approximately 80% fiberised recycled glass, and formed by many layers of the fibre. Between the layers there are millions of air pockets that effectively restrict the transfer of heat through the insulation.
Rockwool batts are made from molten basalt (volcanic rock) that goes through the same fiberising process as the recycled glass. The layers in rockwool batts work in the same way as the glasswool batts.
Glasswool can be made in lower densities than rockwool, and is better suited to residential application. Glasswool is less irritating, making the installation process simple and easy, and when purchased from the Energy Efficiency Centre, it is a more cost effective product. Rockwool can be used at much higher temperatures than glasswool (up to 500°C more) and is therefore most suited to high temperature situations such as hot pipe cladding and around pizza ovens.
Aside from preventing heat transfer, insulation has some effect in preventing noise transfer. In the case of noise reduction, the entire system should be reviewed, including other layers of the wall and roof space, and the source of the noise. EEC sells specific acoustic insulation products design to reduce noise transmission.
If correctly installed, insulation works to keep internal surfaces warmer, and reducing the likelihood of condensation and mould in the process. For further reduction of condensation and mould, consider ventilation and humidity within the room.
When it rains you want the water to drain effectively off your roof. The same with skylights. If your roof has the correct slope water will run away off the skylight and the flashing surrounds. However, if your roof pitch is less than 15 degrees, we will need to add a custom made flashing to ensure there are no leaks with the install.
Insect screen are available with all openable skylights.
Velux skylights only come with white blinds.
There is a rain sensor that is fitted as standard to the Velux skylights. You won’t need to be home to activate it. The window will close automatically once it starts raining.
Velux skylights are very energy efficient. They are manufactured with low emissivity, double glazed glass which has an Argon gas cavity. It is not recommend to add window tint to the glass as it will void the warranty. Blinds are also available to to help control the heat and light.
Skylights open to approximately 300mm.
Yes conversion kits are available. Just let us know which model you have installed.
Unfortunately, you cannot convert a fixed skylight to an opening one.
Window Tinting FAQs
In the same way as car tinting, our window films reduce heat entering a living space in two ways. First by material in the film absorbing heat before it enters your home and second by reflecting the infrared portion (heat) of the sun’s energy. Our films can reduce heat passing through a pane of glass by up to 79%.
Yes. Given that glare is defined in window tinting terms as the over abundance of light, our films can not only reduce or reflect heat energy, but also the sun’s energy that is in the visible spectrum. This can be especially important if too much light is causing you discomfort when looking at a computer monitor or television.
Privacy using tinting is a achieved by a combination of the darkness of the tint and the reflectiveness of the tint. The darker and more reflective, the higher the privacy. Usually a good combination of darkness and reflectiveness is chosen to match the look of the building so as not to look out of place.
Sliding doors are generally made from toughened glass which is manufactured in such a way that each side of the glass responds very differently to window cleaning (for window film application) and window film removal.
We can quite easily apply film or tint to toughened glass, however if ever the film needed to be removed from the ‘bad’ side, we could not guarantee that the glass would not be scratched during the removal process. As such, we could not warranty the installation in terms of workmanship.
Toughened or safety glass will usually have a stamp in the bottom corner of the window. The ‘good’ side (the side on which we can both apply and remove window film without issue and provide a warranty) is the side that the stamp is legible from. The ‘bad’ side is the side where your are reading the stamp in reverse.
Using digital printing and computer cutting technology, we can create virtually any look you can imagine. Digital photos, logos, signage, patterns can all be printed and applied to glass.
A typical dark, reflective window tint will only provide privacy when there is more light outside than inside. Therefore at night, a normal window tint will not help.
However, a frosted film (a cloudy white look) will prevent people outside from clearly seeing shapes inside. So long as the there is at least a 15 to 20 cm gap between the frosted film and objects inside, it would only be possible to see movement and light from the outside.