Disclaimer: Not a sponsored post. Just sharing a project done last week.

So the house that I'm living in is a corner lot facing the setting sun, the radiant heat during evening can be very unbearable & headache inducing.
Wanted to do some low cost project this year to make it cooler somehow, some ideas that I thought of:

1. Install roof turbine (Installed previously, didn't help much)
2. Install some buffer / facade wall / agriculture netting on the outside (mounting issue)
3. Time-based water sprinkler on the outside (mouldy walls)

Decided to do a radiant barrier installation on the roof instead. How I did was:

1. Purchase material rolls directly from supplier (Find supplier from Shopee/Lazada and contact them to do pickup orders), comes in ~40-48m per rolls. Found 3 suppliers, 1 in Kajang, 1 P. Pinang & 1 Melaka. Just find the closest to you.
2. Find contractor to do roofing works, show video instruction on how to do.
3. 1 / 2 days job depending on roof size / design, contractor provide tools & labour.



Feedbacks & comments:
1. Cost = RM170/roll for 48m roll, bought 4 only used up 2.75 (House buildup 30*65). Labour+tools = Rm700
Total cost RM1.4k-ish. Not sure yet what to do with the leftovers.

2. Good quality product, does not tear easily (woven) and warranty is 15 years.

3. Workmanship not that important (could be better aesthetically, but not as important to serve intended purpose)

4. Pretty good results for a low-cost passive solution (no numerical temp. measurement done before / after, but 2nd floor is noticeably cooler in the evening)


Some pics for reference:

Did you measure the temp difference?

The house should be noticable quieter also when it rains.

Useful for high roof distance to ceiling right? If low roof, useful?

Check annually for mold as moisture trap can cause that, which affects health in long term.

TS. effective or not the radiant barrier?

TS sure it's not placebo effect?

Don't have a temp. gun on hand so didn't measure, but I don't get headaches anymore for the whole week living on 2nd floor. Other family members also commented on it being noticeably cooler.

All you need is some air/insulation gap to the roof tiles, but might be hard to install if not much clearance. Mine is not a very high sloped roof design.

Roof Ventilator Wind Turbines better?

got link to the shops, ts?

Not for my case, had 2 but didn't do much for radiant heat.

For Kajang search Roofseal Bandar Teknologi Kajang.

KDK 8” fan exhaust out better. Humanly impossible size Cannot put too big like 12” easy for burglar to sneak in

TS please take note of this. Mold can easily screw your health oer time if left uncontrolled.

is the product obtained SIRIM/BOMBA certificate?

you can actually redo the ceiling with insulation, lot cheaper you know

Wont the strong wind coming inside will cause it to torn off?

Didn't become airtight because left some room for air to pass through, but will check once in a while.

Attached the catalogue for it. SIRIM, CIDB and BS 476 which is something related to fire if not mistaken.

Really? Can clarify how so?


Attached File(s)
 WF402_WOVEN_FOIL_1_.pdf ( 1.51mb ) Number of downloads: 99

Mind sharing the Melaka one?
I'm closer with it since I'm from Johor.

What is the cost vs this?

Cool