Roof insulation.

catman37 said:
My mom-in-law just had 145mm installed by Homeinsulations. They charged R85 per sq
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Also had 145mm isotherm installed by HomeInsulations. Took 2 hours for 90sqm and they wrapped the geyser for free. They were also very thorough and left no gaps. Only gripe was that they covered my trapdoor :wtf:

Overall it's made HUGE difference in both winter and summer. Worth every cent.
 
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Napalm2880 said:
Also had 145mm isotherm installed by HomeInsulations. Took 2 hours for 90sqm and they wrapped the geyser for free. They were also very thorough and left no gaps. Only gripe was that they covered my trapdoor :wtf:

Overall it's made HUGE difference in both winter and summer. Worth every cent.
Click to expand...
Do they vacuum the ceiling before installation and can they bird proof the roof?
 
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spiff said:
http://www.homeinsulations.co.za/services/roof-cleaning-services/
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R17 to R30 per sqm?!!
:wtf:

This is what I did...
- Buy a leaf blower (~R600 for the 3000W Ryobi)
- Hire someone for 3 hours to run the leaf blower in vacuum mode (~R300)
Plus you get a leaf blower to use for (possibly) many years

At their prices, my 120sqm ceiling might have cost R2040 to R3600 to clean!!
I paid R200 cos I had a leaf blower already

remember, you're not cleaning it like you'd clean your lounge floor ... you just want all the real crap out before laying down the insulation.
3 hours,
a person willing to work properly,
and a leaf blower
...will easily get the job done well

Ryobi for R600 on special...
https://www.builders.co.za/Garden-&...RxuB_QqIPLfTKMMG7f1JPNtXxuL_claRoCfF0QAvD_BwE
 
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The_Mowgs said:
Did you manage to locate the receipt? Does it make a difference to the temperature in your house?
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Not yet.

The insulation is the key. I've recorded a 7°C difference between inside and outside.

The vent will help as it gets rid of hot air.

The one thing that I have noticed is my roof does not creek so much when the wind blows.
 
A whirly bird might be better for extracting heat from the roof space.
 
The_Mowgs said:
Did you manage to locate the receipt? Does it make a difference to the temperature in your house?
Click to expand...
Haven't found the receipt yet but I found this.
df99983da3ba61badfe468753bcf0824.jpg
 
I had 145mm Isotherm installed today and there's a difference of 6-10 degrees between the temp inside and the temp outside.
It's a lot more comfortable in the house now.
Outside is 28 currently, inside is 22.
Used to be 28 outside, and inside 28-30 due to the convection effect :P

Paid R85 per sqm at 145sqm = 12,325 ZAR
 
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Clayman said:
I had 145mm Isotherm installed today and there's a difference of 6-10 degrees between the temp inside and the temp outside.
It's a lot more comfortable in the house now.
Outside is 28 currently, inside is 22.
Used to be 28 outside, and inside 28-30 due to the convection effect

Paid R85 per sqm at 145sqm = 12,325 ZAR
Click to expand...
Who did you use?
 
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