This product has multiple variants. The options may be chosen on the product page
Roof Insulation
There are various insulation types, and most are fairly similar, though there are some distinct differences between the brands. The roof insulation cost will typically be saved back in energy savings over just a few days. The average ceiling insulation bag is 1.2 metres long and weighs between 8 and 18kgs. Typically, manholes are not much bigger than the bag itself, so loading the bags into the ceiling is almost always a two-person job. If the manhole is actually not big enough for an unopened bag to fit through, you may have to split the bags open and pass the batts one by one into the ceiling, which is very time consuming. Or you can load the bags through the roof, which will only work if the roof is tiled and comes with its own challenges, not least that you will have to secure yourself against risk of falls.
The below diagram shows Summer heat gains in a home without insulation. Installing thermal insulation in the walls, ceilings and underfloor helps to keep the home cooler in hot weather and reduce the reliance on air-conditioning systems. Insulation is a good way to reduce your energy bills!
Winter Heat Losses
The below diagram shows Winter heat losses in a home without insulation in roof, walls or floor. Between 25% and 35% of heat is lost through the ceiling, higher than any other area of the home. A further 15% to 25% of heat is lost through the walls, leading to high heating bills.
This DIY video explains how to install ceiling insulation batts before the plaster is hung. Our professional installers use this method as it saves time and ensures that the roof insulation is installed properly in hard to reach areas.
Why Install Roof Insulation in Your Ceiling Space?
We once conducted an experiment with roof insulation – installing Earthwool Roof Insulation Batts in Sydney above a commercial office ceiling over all the ceiling tiles, but leaving one tile un-insulated. This was an office which typically got very hot in summer, thanks no doubt to the metal roof immediately above it, and the absence of any roof sarking. The effect of the roof insulation was immediately noticable in that the wall mounted split system air-conditioner which had earlier been installed some months earlier, was now comfortably able to cool the entire office without any trouble.
The most striking thing to notice though was how easy it was to identify which ceiling tile was the un-insulated one, simply by touching it with ones hands. While the insulation which had been installed was only a standard R3.0, the insulated tiles were cool to touch on a hot day, whereas the lone, un-insulated ceiling tile was very warm to touch. There is a world of difference between an insulated roof, and one which isn’t insulated.
Roof insulation makes an enormous difference to the indoor temperature control, and is the best investment you can make to ensure year round savings on your electricity bills. (This is possibly why roof insulation has been a big focus in the Warm Up New Zealand: Healthy Homes programme.) Never compress roofing insulation to make it fit into a cavity which is less than the recommended thickness of the insulation itself. This rule applies to all ceiling insulation types. Compressing roof insulation batts is counter productive, and will actually reduce the performance of the roof insulation materials. Rather install a thinner insulation roof batt with a lower R-Value, or consider installing Hi-Density thermal and acoustic batts in the areas where space is an issue.
Yes, we deliver insulation Australia wide. Most customers can order online and pay for delivery at checkout.
You will need to contact us for a quote if you live in Tasmania, the Northern Territory and certain regional areas. Give us a call on 1300 729 639 or send us an email.
At checkout, we’ll calculate a delivery price for your order based on your location. We have a flat delivery rate of $85 in the major cities.
If your location is not listed at checkout, then please contact us for a custom quote. Please let us know the type and quantity of insulation required.
You can select your preferred delivery date at checkout. Standard orders are delivered within 1-3 business days in cities and 2-4 days in regional areas.
Occasionally, items may be out of stock. In this instance we will alert you within 1 business day and provide you with an approximate delivery date.
Specialised products have a longer lead time as indicated on the product page. Please do not hesitate to contact us if you have any questions.
Please contact us for the nearest pickup location in your State. Our suppliers typically stock one brand of insulation and require 1-2 days to process the order before it can be collected. We can help you to check stock availability and fast track your order if necessary.
Yes, you can return leftover insulation packs to Pricewise Insulation. Returns must be made within 30 days of ordering and will incur a 15% restocking fee. The packs must be in their original condition without any damage.
You can return the insulation to the warehouse where it was dispatched, or pay for courier to collect it from your home or building site.
The easiest way to work out how much insulation you need is to:
Calculate total area to cover
Deduct the windows and doors
Deduct 10% for wooden framing
If you are installing insulation for the first time, then be prepared for a bit of wastage. Instead of deducting 10% for framing, you might want to deduct 5%.