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WHY YOUR HOUSE GETS HOT
...and how heat affects your home
Take Note: Sun emits heat radiation into your roof space turning it into an oven of
70° degrees …this progressively ends up inside your rooms below. If left unvented it will deteriorate many
things inside your roof cavity …including electrical wires, plumbing and stored items …even during winter.
7 Hot and Cool Tips
Roof ventilation saves your roof and keeps you cooler down below …without
Roof heat will heat up air-con tubes and deliver warmer air rather than cold air …it will also overwork
your air-con unit
Removing roof heat will deliver colder air into your rooms …reducing air-con usage ‒ ask any air-con
expert or engineer
Roof heat makes every room in your house hot …and insulation makes it even hotter by retaining the heat
Twista whirlybirds cool your whole house for free …without electricity!
Heat inside the lower roofs will transfer through walls into bedrooms above
Twistaʼs remove heat from the lower roofs …making bedrooms above cooler
How many Twistas
do you need?
Here are some optimised installation examples:
3 Known Facts
not remove heat from your roof cavity
Further facts about Air-Conditioners:
High setup costs …and maintenance
Costly cooling method
Ongoing electricity costs
Can re-circulate airborne viruses causing you to breath in infectious particles
Not environmentally friendly or sustainable
traps heat below the ceiling making bedrooms hotter during summer
Further facts about ceiling insulation:
We all know that heat rises …but heat cannot rise through a ceiling that is covered with a thick
Itʼs like sleeping under a thick winter blanket which retains your body heat to keep you warm
Who covers their body with a thick winter blanket during summer?
Insulation is best on walls and under roof linings to slow down heat entry
ventilators efficiently remove heat from your roof cavity for free
They cost nothing to run
Cheapest cooling method
Healthiest cooling solution because it brings in fresh air
Environmentally friendly and sustainable cooling solution
The volume of heat that must flow out of your roof cavity must be faster than the amount of heat
radiating back into your roof cavity from the sun…
Excessive heat will prevent your air conditioner from functioning to its full capacity and will make
it struggle to keep you cool if your condenser coil is not regularly maintained …it may even shorten
Remember that heat buildup can also cause damage to other parts inside your roof
…hereʼs what I personally found inside roof cavities…
I saw the duct tape around air-con tubes loosened from too much heat and caused the tubes to come
apart, therefore blowing all that cold air into the roof cavity rather than into the bedrooms below…
You wouldnʼt even know itʼs doing this until you have it inspected
TOO MUCH AIR-CON CAN AFFECT YOUR HEALTH
...the sick building syndrome
Sluggish at home and office
Dehydration, dry lips, dry skin
Itchy skin, light headed
Headaches, migraine attacks
Reduced blood flow to the brain
Inability to concentrate
Nausea, runny nose, sore throat
Upper respiratory symptoms
Mucous membrane inflammation
Vulnerable to viruses and bacteria
Mould spores triggering asthma attacks
WHY YOUR HOUSE GETS MOULD
...the sick building syndrome
BEWARE: Mould and mildew develops very quickly without proper ventilation …The effects of
mould are well known to be dangerous to the health of your family.
If mould is left to multiply, this bacteria can lead to serious consequences… including weakening the immune
system, developing respiratory illnesses such as asthma, bronchitis, pneumonia, coughing, headaches, nausea
and chronic lung disease.
Mould on walls & ceilings multiply in the absence of air movement
Twistaʼs dry out moisture keeping your home damp-free and warmer in winter
DAMAGING WINTER MOISTURE
Perfect Environment for
Termites and Wood Rot
NOTE: Termites are known to thrive in dark, damp environments. Protect your roof cavity from
termite infestation and wood rot by efficiently venting your roof with Twista
Whirlybird roof ventilators.
Roof ventilation during winter dries damp air, this in turn means the air is actually warmer, therefor a dry
winter roof is a warm winter roof.
Australian made Twista Roof Ventilators are manufactured using a steel ball bearing system. Twista
has proudly installed over 353,500 vents in Australia and the numbers continue to
Ball bearings make use of hardened spherical balls that can handle both radial as
well as thrust loads. The load is transmitted from the inner race to the balls and then from the
balls to the outer race.
Because the bearings are spherical (ROUND), there is very small area of contact with the load, which
is low friction …making way for high RPM (revolutions per minute), thatʼs why most Electric motors
contain ball bearings.
Twista turbines use only the best-performance ball bearing system to deliver the highest RPM when
needed and to
provide a better and faster response …which means they will operate continuously without friction
day and night
NOTE: some manufacturers use plastic housing bearings and some use Roller Bearings for their Vents.
Ball Bearings perform better than Roller Bearings. Balls start up quicker and continue rotating
Rollers need a lot more wind to get them started and they have more friction, so they stop rotating
the Ball Bearings.
The Twista roof ventilator design turbocharges faster than many other brands and we wouldnʼt
less for your home!
How we Waterproof a Twista Installation Accurately and Professionally so itʼs
sealed 100% against all climates
Standard Tile Installation
Moulded, Sealed and Secured!
Worldʼs Best Whirlybird!
Twista 750mm Whirlybirds will cool your whole factory without electricity
Due to COVID-19 we have permanently set up a 24hr/7day messaging service where you leave
message and we then return your call during office hours…
Due to Virus Outbreaks and everyoneʼs Health and Safety we have now
set up all our phone operators to work from home.
Please be kind and patient when they return your call to provide assistance ‒ Thank You!
Otherwise, if you know what you want, click the “BUY NOW” button to complete your purchase
really that easy ‒ try it now!
*Conditions may apply – call for information. Additional fees may apply to some travel zones/poa.
Temperature differences will vary from house to house.
Scarlett Industries Pty Ltd trading as Twista ABN 49 150 850 703
In the event Twista installer is unavailable in your area, you may wish to engage a local roofer or local
builder to assist with your roof vent installation