El Niño summer 2026–27 · Brisbane & South East Queensland
A near-record El Niño summer is coming to Brisbane in 2026–27. Most ceilings here need about R2.5 to R3 of insulation to handle it, not R6.
I’m Peter Johnson and I’ve been insulating Brisbane roofs since 1986. The Bureau of Meteorology says this El Niño is near the strongest on its books and the summer outlook has hotter days and nights likely across most of the country. I’ll take you through what that does to the roof over your head, the insulation the building code asks for and the one thing to watch for when the El Niño sales pitches start.
Comfort Zone insulation.team
Family-owned insulation manufacturer, making comfy homes since 1986
This shows where the warm water sits this summer and what the Bureau expects it to mean for Australia. The figures are the Bureau’s from 29 Sep and 1 Oct 2026. It is an illustration, not a Bureau chart.
Real reviews, real jobs
What our customers say
Genuine Google & hipages reviews from Comfort Zone customers across SE Queensland.
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Angela M.
SE Queensland
“The fact that I can't even tell it's 6 degrees outside when I wake up in the morning speaks for itself. Have wasted so much money attempting to heat and cool an uninsulated home. Worth every $.”
- Phipages
P Peter
Alstonvale, 2024
“Connected with Comfort Zone Insulation and would recommend them”
- J
Jessa B.
Brisbane
“It dropped about 4 degrees straight away, and we added another 3 with the second job. I appreciate Peter's honesty, and the team showed pictures before and after.”
- Nhipages
Nola M
Birtinya, 2024
“They were courteous and competent.”
- I
Iain V-B.
Brisbane
“Quick and polite service. Great follow-up advice and photos sent for our records. Above and beyond what we expected. Would highly recommend.”
- Jhipages
Jennifer's E
Upper Caboolture, 2024
“Excellent customer service. Highly recommended. Has a profound knowledge of insulation products and has the best interest of his customer.”
- G
Gerry S
Fitzgibbon, 2023
“I used Comfort Zone and they have a done an excellent job.”
- Jhipages
Jennifer
Upper Caboolture, 2024
“Excellent customer service. Highly recommend. Has a profound knowledge of insulation products and has the customer best interest.”
- J
Jung K
Riverhills, 2023
“An experienced family operation. Highly recommend. Thank you for the great job!”
- Dhipages
Diane A
Ormeau, 2024
“Peter and crew did a great job I would definitely recommend them”
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David H
Sunshine Coast, 2021
“Completed the job as quoted and to a high standard. Great personal service. Would highly recommend Comfort Zone for ceiling installation work.”
- Thipages
Timea
Highland Park, 2023
“I was extremely satisfied with the service they provided. They gave a very thourough explanation of the materials used, the way the work will be carried out and the price I had to pay was the exact amount quoted, no hidden costs included. They arrived on time, well prepared and workwas carried out exactly how they said it would be, they were super efficient, well prepared and were kind enough to even clean up after themselves. The services they provided was second to none! I don't hesitate to recommend them for any insulation job!”
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Benjamin H
Carseldine, 2019
“Very good explanation about their works. Advice of existing problems with the roof. Clean work. Very professional.”
- Mhipages
Mark
Pottsville, 2017
“Michelle, we are done - Peter from comfort zone insulation was very helpful. very honest with his recommendations - in fact he told me that the product my daughter had if installed correctly was superb. Thanks Peter you are a champion and i would recommend you to any person that was wanting professional advice and old school service.”
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Ian G
Burnside, 2019
“Good information, communication and professionalism.”
- Jhipages
Jessica
Pottsville, 2016
“This business offers a fantastic product that other businesses did not. Pump in ceiling insulation. Knowledge of the industry second to none.”
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Danny D
Boondall, 2018
“He explained everything he was going to do and the different types of insulation they used. He talked through the different options but made a recommendation for the one most people use, which is the one I chose. He was very understanding towards what I needed and not about himself.”
- Jhipages
Jack
Pottsville, 2023
“Excellent communication and informative. Professional.”
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Graham R
Riverhills, 2018
“Comfort Zone. Turned up ahead of time, completed in about 2 hours, cleaned up. All good. Very motivated installation team.”
- Thipages
Tony P
Redland Bay, 2023
“Very knowledgeable about insulation”
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Alex B
West Ipswich, 2018
“Fast, friendly, efficient.”
- Shipages
Steve
Redland Bay, 2017
“Excellent job and reasonable price.”
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Luke D
Mcdowall, 2017
“Peter did a good job. It was a quick and clean service. I'm happy to recommend!”
- Bhipages
Bruce H
Kuluin, 2023
“Prompt and efficient quoting.”
- B
Brendon
Brays Creek, 2016
“Peter supplied and installed roof insulation for me. He was very informative and provided good advice.”
- Ghipages
Gerry S
Fitzgibbon, 2023
“I used Comfort Zone and they have a done an excellent job.”
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Trevor G
Brookside Centre, 2016
“Excellent tradesmen from Comfort Zone Insulation. They were punctual and cleaned up after. Highly recommended.”
- Thipages
Tamara
Underwood, 2023
“Peter is honest, hard-working and came on time. Knew excally what he was talking about and answered my questions. Would 100% recommend”
- J
John G
Beaudesert, 2019
“Peter is an honest person who provided me with the information I wanted then performed a good job with great results for the benefit of myself and my family.”
- Shipages
Sterling G
Ashgrove, 2023
“Comfort Zone were very knowledge with great communication and follow up”
- Ghipages
Graham R
Riverhills, 2018
“Comfort Zone. Turned up ahead of time completed in +- 2 hours cleaned. All good. Very motivated installation team”
- Jhipages
Jung K
Riverhills, 2023
“An experienced family operation. Highly recommend. Thank you for the great job!”
- Khipages
Kathy A
North Lakes, 2023
“We connected with Peter through HiPages and he was prompt, professional and even came back after the job was complete to assist with a question we had. We would highly recommend Peter for further insulation works.”
- Dhipages
David H
Sunshine Coast, 2021
“Completed the job as quoted and to a high standard. Great personal service. Would highly recommend Comfort Zone for ceiling installationn work.”
- Shipages
Sue H
Sunshine Coast, 2021
“Incredible customer service”
- Ehipages
Eileen C
Cedar Vale, 2021
“Quality work, good customer service, prompt”
- Chipages
Craig M
Woody Point, 2021
“Called within 5 minutes of request. Very knowledgeable and explained job in great detail, provide great advice in prior preparation for works required. Very friendly and helpful.”
- Jhipages
Jenny C
Plainland, 2021
“Although I did not hire Peter I was impressed with the initial contact and the knowledge he was willing to impart. I was treated with respect which I appreciated. I would have hired but I received a lower quote.”
- Qhipages
Quinton
Coomera, 2020
“Professional installation without any short cuts. True to their word with high integrity. Response from Comfort Zone Insulation”
- Ghipages
Gary P
West Kempsey, 2020
“Came & Gave a free quote”
What the Bureau is saying
The summer 2026–27 forecast for Brisbane and Queensland
Three numbers from the Bureau of Meteorology tell the story. Everything below is quoted from its own pages, with the link beside each figure.
+2.72 °C
relative Niño3.4 index, week ending 27 Sep 2026 — the second-highest weekly value in the Bureau's record since 2008
over 80%
chance of above-average overnight temperatures across almost all of Australia, October to December — more than 4 times the normal likelihood of unusually warm nights
60% to over 80%
chance of above-average daytime temperatures across most of Australia for October to December
The Bureau’s October to January outlook, issued on 1 October 2026, puts the chance of unusually high maximum temperatures at over 80% for south-west Queensland and over 50% across “much of the southern two-thirds of Australia.” For rainfall it has below-average totals likely for Cape York and roughly even odds across much of eastern Australia, with northern Australia’s usual build-up of humidity and storms still expected. BoM climate outlook, 1 Oct 2026 ↗
Two lines from the Bureau are worth keeping in mind before anyone, including me, tells you what this summer will be. The first, from its 1 October outlook, is that a strong El Niño signal “does not necessarily mean strong impacts on Australia’s rainfall and temperature.” BoM climate outlook, 1 Oct 2026 ↗The second is that El Niño “can increase the risk of extreme temperature shifts, like heatwaves and hotter days.” BoM, El Niño and Australia's climate, updated 17 Sep 2026 ↗ Plan for the heat and keep an eye on the forecast as it firms up.
Plain terms
Why El Niño, La Niña and the Indian Ocean Dipole make Brisbane hotter
El Niño and La Niña are the two ends of one cycle in the Pacific Ocean, the El Niño–Southern Oscillation. The Bureau defines them as a sustained warming (El Niño) or cooling (La Niña) of the central and eastern tropical Pacific that lasts many months. BoM, What is El Niño ↗ Think of it as a see-saw. In an El Niño the warm water and the rain sit in the central and eastern Pacific, over toward South America, and eastern Australia tends to run hotter and drier. In a La Niña the warm water piles up on our side of the ocean and we get the wet years. With the rain sitting out over the Pacific, Brisbane gets clearer skies, and the Bureau notes that less cloud cover brings warmer-than-average daytime temperatures, particularly in spring and summer. BoM, What is El Niño ↗
You’ve lived through both ends of it recently. Three La Niñas in a row from 2020 to 2022 helped make 2022 Australia’s ninth-wettest year on record and sat behind the late February flooding across south-east Queensland. BoM annual climate statement 2022 ↗ The same system has now swung hard the other way.
The second driver is on the other ocean. The Indian Ocean Dipole is the difference in sea temperature between the western and eastern tropical Indian Ocean. In its positive phase the water off north-west Australia cools and the moisture that would normally feed rain systems across the country dries up. The Bureau’s index was +0.76 °C for the week ending 27 September, the third week running above the positive threshold, and it expects a positive event to develop through spring and persist into early summer. BoM monitoring, 29 Sep 2026 ↗ When a positive Dipole lines up with an El Niño, the Bureau notes it can increase the chance of drier conditions in southern and eastern Australia. BoM, El Niño and Australia's climate ↗
What it does to a house
Why the roof space is the problem in a Brisbane summer
The biggest single share of the heat that makes a Brisbane house unbearable in January comes in through the top. The sun sits on the roof all day. The iron or the tiles heat up, the air in the roof space heats up under them, and that heat pushes down through the ceiling into the rooms below. I’ve filmed iron roofs in Brisbane so hot the sheeting has scorched the timber battens underneath it. That is the heat sitting a few centimetres above your bedroom ceiling.
A full layer of Cellulose Fibre Insulation across the ceiling slows that heat right down. The rooms hold their morning coolness through the afternoon, the air conditioner cycles instead of running flat out, and the house stops feeling like the roof is cooking it. It is one seamless blanket pumped to depth with no joins, so there are no gaps for the heat to pour through.
Insulation slows the heat coming through the ceiling. In a hot summer that’s where the biggest single gain is. On most Brisbane homes it’s a one-day job. How we insulate a Brisbane ceiling.
Comfort Zone insulation.team
Family-owned insulation manufacturer, making comfy homes since 1986
Pumped Cellulose Fibre Insulation laid as one seamless blanket across a ceiling, Jimboomba.
The building code, not the sales pitch
How much ceiling insulation a Brisbane home needs for an El Niño summer
Brisbane sits in the National Construction Code’s Climate Zone 2. For a new build with a light-coloured, vented pitched roof, the code’s minimum added ceiling insulation is R2.5. A darker roof or an unventilated one pushes that to between R3.0 and R4.0. NCC 2022 Housing Provisions, Part 13.2 ↗ ABCB climate zone map ↗ We pump Cellulose Fibre Insulation to about 100 mm above the ceiling, which is roughly R3 in the real world, and we pump deeper where the code or your roof calls for it.
An El Niño summer doesn’t change the code and it doesn’t change the physics. Past the right R-value for your zone, more insulation does very little, the same way more sunscreen does nothing once you are already covered. What changes the result is coverage. A ceiling with gaps in it leaks heat through the gaps no matter what number is printed on the bag, which is why batts marked R6 can end up doing roughly the work of R3 unless they are installed perfectly. ICANZ 2024, effect of gaps on batt R-value ↗
Every hot summer brings a run of quotes for R6 ceilings and a whirlybird or two on top. Roof vents on an already-insulated ceiling are the “would you like fries with that” of the insulation world. Get the ceiling covered properly to about R3 and keep your money for the air conditioner bill.
Check the number against the code. About R2.5 is the Brisbane minimum. Our free tool gives the figure for your suburb.
Ask how they get coverage. Pumped insulation fills every corner. Batts leave gaps unless they are cut and fitted perfectly.
Treat vents as a separate question. We repair and remove roof vents. A properly insulated ceiling makes new ones pointless.
A hot, dry summer
Cellulose Fibre Insulation and fire in a dry El Niño summer
A dry El Niño summer puts fire on people’s minds. Cellulose Fibre Insulation is treated with borax and boric acid when it is made. Sustainability Victoria’s Energy Smart Housing Manual puts it this way: the treatment “ensures that, if the material does ignite, the flame will not spread.” Sustainability Victoria, Energy Smart Housing Manual ↗ The CSIRO describes the product as pulverised paper combined with fire-retardant chemicals. CSIRO thermal insulation guide ↗ The Australian test standard for building materials is AS 1530. Standards Australia, AS 1530.1 ↗
Hold a blowtorch to a handful of it and it chars and glows where the flame touches. It doesn’t carry a flame across the ceiling, which can slow a fire spreading through the roof space and may give a family more time to get out. I’ve run the same blowtorch over fibreglass and polyester and the difference is plain in the video.
Keep it in proportion, though. We sell Cellulose Fibre Insulation as insulation. It keeps your house cooler in summer and warmer in winter, and that is the reason to buy it. The way it behaves in a fire is a property of the product, not a promise about your house. A formal fire rating comes from a test certificate, not from a blowtorch demonstration. The full fire-resistance answer, including the 1978 American test.
Flame test: cellulose vs polyester vs fibreglass
We put a flame to all three insulation products, side by side, so you can see for yourself which one stands up to fire.
Read the transcript
G'day Peter here from Comfort Zone Insulation just doing a product review on three different products for fire so we've got the polyester batts and they're they're actually the king of batts if you need a batt to put in I'd definitely recommend those they're a lot less prone to rats or mice digging in them building nests in them and they're non allergenic and not itchy like the fibreglass ones can be. This here is actually quite unusual this is actually polyurethane and we pulled this out of a house I've already actually done a flame test on the other side but I'll show you what happens when when we put a flame on that because it's a bit interesting and this is of course the cellulose fibre this is what we manufacture here in Lowood and it's fire and vermin retardant to the Australian standards you won't get any rats or mice burrowing it or build nests in it and it kills any ants spiders cockroaches silverfish so I'll just show you what happens when we do put flames on these things so we've got a flame there, if we put the flame on the polyester even though it meets the standard it just cuts for it like that, if we put the flame on the cellulose fibre we can hold that flame there it doesn't recede from the flame and you can have that flame there for a long long time and this is the only product that can actually save your home in the fire this polyurethane stuff was made illegal to put in residential houses because that's why it's a bit windy here I'll just come around the other side but, down there are the fumes guys but this stuff just catches fire now, imagine if we put polyester batts over the top of that, which a lot of people do it doesn't actually stop with the flame the flame will just cut through that and keep burning that polyurethane and you can fight for killing everybody in the shed so the cellulose fibre is a lot better when it comes to fire and we'll just put that out for the cellulose chuck the cellulose in there oop, it's hot so, you can see the difference if you had a house fire, why you wouldn't want to have this polyurethane and you wouldn't want to have polyester batts or fibreglass batts perform about the same they don't melt like this but they do melt away from the flame and expose your joist timbers to the flame whereas the cellulose fibre, you can see here, even on the flame test, it's actually only burned in like a couple of millimetres into the top of that cellulose there
Comfort Zone insulation.team
Family-owned insulation manufacturer, making comfy homes since 1986
The blowtorch test on the three products. This is Peter’s demonstration, not a certified fire rating.
The part that matters more in a heatwave
Old halogen downlights and flues must stay clear of ceiling insulation
Insulation that does its job traps heat. That’s exactly why old halogen and 240-volt downlights must never be covered. They run hot, and good insulation packed around them keeps that heat in. We shroud them with polyester and keep a 200 mm gap. We also tell you to swap them for IC-4 rated LEDs, which are built to be covered. Fire flues get the clearance their manufacturer specifies. In a summer where the roof space is already baking, these clearances are the safety work, and they are standard on every job we do. Downlights and insulation, the full answer.
Get the ceiling done before the heat arrives
You get a fixed price from your address, quoted online, and the price on the quote is the price you pay, with no deposit. Most Brisbane ceilings are a single day’s work. The sooner it is in, the more of this summer you get the benefit for.
Questions people ask
El Niño, heat and insulation questions
Is El Niño confirmed for the 2026–27 summer in Australia?
Yes. The Bureau of Meteorology's monitoring issued on 29 September 2026 says El Niño is at near-record levels. The relative Niño3.4 index was +2.72 °C for the week ending 27 September. That is the second-highest weekly value in its record since 2008. All models the Bureau follows forecast it peaking in late spring or summer, and most put the peak above +3.0 °C. The Bureau also says a strong event doesn't always mean strong impacts in Australia, so the figure to plan around is its long-range forecast, which has above-average days and nights likely across most of the country for October to December.
What is the opposite of El Niño?
The opposite is La Niña. They are the two ends of one cycle in the Pacific, the El Niño–Southern Oscillation. In an El Niño the warm water and the rain sit in the central and eastern Pacific, over toward South America, and eastern Australia tends to run hotter and drier. In a La Niña the warm water piles up on our side and we get the wet years. Three La Niñas in a row from 2020 to 2022 gave us the February 2022 floods across south-east Queensland. The same system has now swung to its hot phase.
Does ceiling insulation help in a heatwave?
Yes, and it is the single biggest gain you can make in summer. A Brisbane roof space heats up under the iron or tiles all day and that heat pushes down through an uninsulated ceiling into the rooms below. A full, gap-free layer of Cellulose Fibre Insulation on the ceiling slows that heat down, so the house holds its morning coolness longer and the air conditioner runs less. Insulation can't make a house cold by itself, but it is the difference between a roof that bakes the rooms and one that doesn't.
Do I need R6 ceiling insulation for an El Niño summer in Brisbane?
No. The National Construction Code's minimum added ceiling insulation for Brisbane's Climate Zone 2 is R2.5 for a light-coloured, vented roof and up to R4.0 for a dark or unventilated one. We pump Cellulose Fibre Insulation to roughly R3 as standard and deeper where the code calls for it. Past the right R-value for your climate zone, extra insulation does very little, like sunscreen past the point where you are already covered. A company quoting R6 for Brisbane because it is an El Niño year is selling you product you will never feel the benefit of.
Is Cellulose Fibre Insulation fire resistant?
It is fire-retardant treated. Cellulose Fibre Insulation is treated with borax and boric acid during manufacture, and Sustainability Victoria's Energy Smart Housing Manual says that treatment ensures that if the material does ignite, the flame will not spread. The Australian test standard for building materials is AS 1530. Hold a blowtorch to a handful and it chars where the flame touches rather than carrying a flame. It is insulation first and that is what we sell it as. Any help it gives in a fire is a bonus, never the reason to buy it.
When should I insulate before summer?
Now is the time, before the heat sets in. The Bureau's outlook has above-average temperatures likely from October onward, so the sooner the ceiling is done the more of the summer you get the benefit for. We quote online from your address at a fixed price with no deposit, and most Brisbane ceilings are a single day's work.
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