Solar Roof Ventilator for Landed Homes in Singapore
A solar roof ventilator pulls hot air out of your roof space using sunlight. NexFix Engineering Pte Ltd fits this solar attic fan on landed houses across Singapore, including terrace, semi D and bungalow roofs. We cut the opening, fit the flashing, seal the joint and test the fan.
A landed home has a roof right above your living space. That roof bakes in the sun all day. Our roof waterproofing team does the sealing, so your new fan does not become a new leak. This page covers landed homes. For the full service, see our main page on solar roof ventilator fan installation in Singapore.
Why Landed Homes Get a Hot Attic
An apartment sits under other floors. A landed home does not. Your top floor sits directly under the roof, so the sun heats it all day. Concrete tiles and metal sheets soak up that heat, and the roof space under them traps it. Your ceiling then passes that heat to the bedroom below.
Many landed homes add to the problem.
A long roof area collects more heat than a small one.
An attic room or loft sits right under the tiles.
A rear extension or flat roof section holds heat and water.
Old roof vents are blocked, too small or missing.
The result is a hot attic in your landed home. You switch off the aircon at midnight, and an hour later the room feels warm again.
Signs Your Landed House Needs a Roof Fan
Your top floor bedroom stays warm long after sunset.
The ceiling feels warm to your hand in the afternoon.
Your aircon runs for hours, yet the room never feels cool.
You open the attic hatch and the air feels like an oven.
You see damp patches, mould or a stale smell near the ceiling.
Stored items in the attic warp, fade or smell musty.
How a Solar Attic Fan Helps a Landed House
A small solar panel sits on top of the unit. The panel powers a brushless DC motor. The motor spins the blades, and the blades push hot air out of the roof space. Cooler air enters through your eave, soffit or ceiling vents to replace it. The fan spins faster in strong sun, which is when your roof is hottest.
The fan needs no wiring to your DB box and adds nothing to your power bill.
What it does not do. A solar roof ventilator does not cool a room like an aircon. It also cannot stop heat that radiates down through the roof surface. A 2021 study in Frontiers in Built Environment tested a roof design that combined concrete tiles, an air cavity and solar powered fans. The attic ran 6°C cooler than the attic under a standard roof. Your result depends on your roof type, insulation, roof colour and air intake. We check all four before we recommend a unit.
How We Install a Solar Roof Ventilator on Your Landed Roof
Inspect. We check your roof type, ridge line, roof space size, insulation and existing vents. We also look for old leaks.
Size and place. We match the units to your roof space and place them near the ridge.
Check the air intake. The fan needs fresh air to replace what it removes. If the roof space cannot breathe in, we tell you.
Cut and flash. We cut the opening and fit flashing made for your tile or metal roof.
Seal and waterproof. We seal the joints and waterproof the base of each unit.
Test and hand over. We run the fan in daylight, check the seal and show you how to clean the panel.
Will a Roof Fan Make My Landed Roof Leak
This is the top worry for landed owners, and it is a fair one. Any hole in a roof can leak if the flashing is wrong or the sealant fails. Flat roof sections carry a higher risk because water sits on them.
We treat every ventilator as a waterproofing job first. The same team that fixes roof leaks cuts the opening and seals it. Read more about our roof waterproofing in Singapore.
Do you already see a stain on the ceiling? We repair the leak before we add a fan. See our ceiling leak repair service.
Planning a Renovation or Rooftop Solar Panels
Many landed owners plan more roof work. Tell us early if you plan any of these.
Rooftop solar panels. We place the fan away from your panel layout.
An attic conversion. We plan the airflow around the new room.
A roof repair or re roofing job. We fit the fan during the same work, so the roof opens only once.
An addition and alteration project. We coordinate with your contractor on roof access and timing.
What Decides the Price
We do not quote from a catalogue. Your price depends on these factors.
The number of units your roof space needs
Your roof type, which may be tile, metal or flat
The roof height and how safely we can reach it
Ducting from the unit to a room or staircase
Any waterproofing or repair your roof needs first
We inspect your roof for free and send a written quote. You decide after you read it.
Why Landed Homeowners Choose NexFix
One team handles the roof opening, the seal and any leak repair.
We inspect first and quote second.
We tell you when a ventilator will not help your roof.
We explain the unit, the placement and the upkeep in plain words.
We work from our office at 201 Jalan Besar, Singapore 208887.
Landed Estates We Serve
We install solar roof ventilators for landed homes islandwide. This includes areas such as Bukit Timah, Tanglin, Novena, Bishan, Ang Mo Kio, Serangoon, Hougang, Katong, Bedok, Tampines, Sembawang, Yishun, Jurong and Clementi. If your estate is not on this list, message us and we will confirm.
Our Work Gallery
Frequently Asked Questions
How many solar roof ventilators does a terrace house need?
That depends on the roof length, the roof space volume and the air intake. A short roof may need one unit. A long intermediate terrace may need more. We confirm the number during the inspection.
Does a solar attic fan suit a bungalow?
Yes, in many cases. A bungalow often has several roof sections, so we plan each roof space on its own. We place units where hot air gathers, usually near each ridge.
Will a solar roof ventilator make my landed roof leak?
Any hole in a roof can leak if the flashing or sealant fails. We match the flashing to your tile or metal roof and waterproof the base of each unit. We inspect flat sections first and tell you if we do not recommend a unit.
Does the fan work at night?
The fan runs on daylight. It slows as the light fades and stops at night. It helps most by keeping the roof space cooler through the day, so your ceiling stores less heat.
Do I need approval to install a roof fan on a landed house?
Rules differ by property. Conservation homes and some estates with management rules may ask for approval. Check with your architect or the relevant authority, and tell us your property type so we can advise you.
Can you fit the fan during a roof repair?
Yes. We fit the fan during the same job, so the roof opens only once. We repair any leak first.
How much does it cost?
The price depends on the number of units, your roof type, access height, ducting and any waterproofing your roof needs. We send a written quote after a free inspection.
Get a Free Roof Check for Your Landed Home
Tell us your home type and which room feels hottest. Send a photo of your roof if you have one. We will inspect, explain your options and send a written quote. For the full service details, visit our main page on solar roof ventilator fan installation.
NexFix Engineering Pte Ltd, 201 Jalan Besar, Singapore 208887