Roof Cooling Solutions?

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Mohit

Mohit

Forerunner
I am looking for a suitable roof cooling solution for my home. The temperatures here are in excess of 45C and its becoming unbearably hot.

I had read and heard about solutions such as painting the roof white with a highly reflective paint to reduce temperatures and thereby save on electricity costs too. I think Gannu has done something similar at his place.

I searched online and came across these solutions,

http://www.coolgriha...grihaworks.html

http://www.novotaind...tive-Paint.html

http://www.aesthetic...etail.php?id=21

I have sent enquiries and I got a quotation of Rs. 58,000/- from Aesthetic Solutions which I am finding too steep. I am in talks with the others too.

If anybody knows any other such products or roof cooling suggestions, please share it here. Thanks.
 
#[member='Mohit'],

Dont bother for all that.

Catch local painter, Ask him for something called "Chuna" in Hindi. Its white colour thing, will cost max of 1000 Rs for full terrace.

Really works & effective, Only problem is its washed away when it rains. Rains are still 4 months away so good to go.
 
go for this thing, apply a 5 cm layer of limestone, then above than put a single layer of bricks, and then again cover and make the whole floor plain with lime or putty, and you are done.

and yeah if you want to go for a life long solution, put tiles above them, secured for life long
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Yeah the lime (chuna) thing helps a lot. Did it last year in my terrace.. Might add some fevicol to it because it gets off even if high pressure water is poured if you are cleaning terrace or whatever.

Make 3-4 coats of it
 
I will find out about Lime/Chuna. I just hope it does not make the roof too messy. I am also trying to find some good exterior paint in White from Asian, Dulux, etc.
 
Being.smart said:
go for this thing, apply a 5 cm layer of limestone, then above than put a single layer of bricks, and then again cover and make the whole floor plain with lime or putty, and you are done.

and yeah if you want to go for a life long solution, put tiles above them, secured for life long
gap.gif
Click to expand...

Could you explain the logic behind using limestone and then brick layer.

Sorry, but this makes no sense to me..

#[member='Mohit'] Chuna has some reflective properties which wont be there in all white paints. However dont know if paint brands have some specific product to do the job same as chuna
 
^ this trick has been done by a local here, was sponsored in local newspaper, by that method he was able to keep room as cool as 30-32 inside
 
If you put "chuna", literally "chuna lagegi"!

Permanent solution :

for outdoors/roof : use tiles (you can even go for broken ceramic tiles in a mosaic this would be cheaper);

for indoors: get false ceiling.

False ceiling - would provide a insulated layer of ~1 foot of air, would be more effective than the tiles on the roof. You have choices - ranging from the cheapest (thermocol), budget (POP) to expensive (preformed ceiling tiles).
 
Get a layer of thermocol on the ceiling that is exposed to direct sunlight, and then get POP/False ceiling done. On the terrace, white tiles at 20rs sqft should do the trick.

Another idea would be to cover the terrace with green cloth like a shed. Terrace doesnt get sunlight it doesnt heat up, temps remain low inside
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its really getting hot climate in Trivandrum, Kerala. Any use of painting high albedo paints? anyone applied?
 
If we are discussing about villa type houses, building a truss roofing over the house will save you not only from direct sun and heat, but also from early painting after harsh climates. For eg., trusses like this, with white painting on lower side:

http://www.cimg.in/images/2014/01/14/43/133005497_13897231853_large.jpg

I was actually looking for a good vendor who can provide Geothermal cooling solutions, but difficult to find a reputable one who can provide service for small houses. For me, that idea looked promising, if executed right:

http://energyblog.nationalgeographic.com/2013/09/17/10-myths-about-geothermal-heating-and-cooling/
 
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