Roof insulation.

I've installed a product by the name of Isotherm, its great, my house temperature went up by approximately 4-7 degrees in winter.
 
As mentioned in my previous post, I have the cellulose stuff in my ceiling. It works fine - for the first year or two. The problem is that it tends to get "thinner" with time. Wind, movement and moisture in the ceiling tends to influence it. I had 75mm installed, but now it is only 20mm thick in places.

Will not use it again. Go for Isotherm.
 
Anyone watch Holmes on Homes?

He always has some guys spraying a foam insulation and well as stuff that looks like those foam mattresses. I think Canadians know about the cold.
 
JungleRumble said:
As mentioned in my previous post, I have the cellulose stuff in my ceiling. It works fine - for the first year or two. The problem is that it tends to get "thinner" with time. Wind, movement and moisture in the ceiling tends to influence it. I had 75mm installed, but now it is only 20mm thick in places.

Will not use it again. Go for Isotherm.
Click to expand...

Ah, I missed your post about the cellulose thinning out - that makes a big difference. I guess I'm leaning towards Isotherm and doing a (blech) self install.
 
For Isotherm:
I got hold of Erwin Bauernschmitt on 083 417 6450. He says he's fully booked until June, so he referred me to a Tommy Lamont on 072 113 4893. He gave me a price of R36/m2 for 100mm, and he's available from May.
 
Must say Isotherm is easy to self install. Once you are up in the ceiling with a pair of sheep shear scissors (best to use) and a couple of beers, even the heat stops bothering one. Ensure you do not miss a spot, and ensure the web lies flat on the ceiling.
 
duderoo said:
Any recommendations on roof insualtion. I have heard the think pink stuff ain't that great and I was keen on going for that paper mulch stuff?
Click to expand...

I've also got the pink stuff and it is brilliant, can't say if it itches or not i got some other poor sap to install the stuff. My cousin used the paper mulch and he ended up vacuuming the stuff up and threw it away.
 
JungleRumble said:
Must say Isotherm is easy to self install. Once you are up in the ceiling with a pair of sheep shear scissors (best to use) and a couple of beers, even the heat stops bothering one. Ensure you do not miss a spot, and ensure the web lies flat on the ceiling.
Click to expand...

Good advice - dehydration is a serious medical condition!!! :cool:
 
After reading this thread, it looks like Isotherm is the way to go :D

I got some prices for the Isotherm material - 100mm thick.
I'll prices include VAT

R221.00 for 1.2m wide, 6m long
R277.00 for 0.75m wide, 6m long x 2 rolls

Works out to be about R30 per m2.
 
Tommy is doing my installation near the end of May. He's charging me R35/m2. He will also wrap the geyser & pipes at no extra charge.
 
flarkit said:
Greg, who did you contact for those prices?
Click to expand...

I'm in the Cape - from Brights. Most places have to order the 100mm specifically.

I still have to find out if they deliver it or not - I think those rolls are quite big! :D

I've tried to get an installer, but no one comes back to me! :mad:

Can anyone confirm that this stuff is really going to make a noticible difference?
 
Insulating your roof really makes a difference. There is a condition though:

Once insulated, you should preferabily keep your windows and curtains on the western side of your house closed. Warm air that enters tends to be trapped inside. My experience in the Cape with my western facing bedroom window was that in summer the house was nice and cool during the day - but at night the room was relatively warm (compred to ambient temp) That was because the sun baked the room warm via the uncovered window - and the insulation prevented the heat from escaping through the ceiling.

However, I used the paper stuff - and not Isotherm.
 
Thanks for the info :D

I think I'm going to go ahead and install...

I just got a quote from Home Comfort for an installed price of R65 per m2! And that is for 75mm! What a joke!
 
Spray Foam

Please is there any info on using Spray foam, watching how they use it overseas makes so much sense.
 
Ok, I have decided to go the DIY route and use Isotherm.

Where is the cheapest place to buy it in the Durban(Highway) area?
 
I came accross a product that is called Vermiculite. Looks like very small popcorn, also used in the nursery environment as a medium instead of soil. I believe it is used extensively in Europe for insulation in ceilings. Made in SA. Comes in bags of 7kg's that fits throught the manhole to your ceiling, pour it out and level it between the beams approx 2.5cm below the thickness of the horizontal beams so it will give you a thickness of +-111.5mm. It is hypo-alergy, flame retardent and all other good things. I just moved house and as soon as I have unpacked my business card holder I will post the company and contact number
 
duderoo said:
Any recommendations on roof insualtion. I have heard the think pink stuff ain't that great and I was keen on going for that paper mulch stuff?
Click to expand...

Best idea came from Pop mechanics SA edition: A certain green shrub is placed inside boxes, placed on the roof (5cm x20cm x 40cm) and absorbes all the heat from the sun. What happens if it doesn't rain? Can't remember but this is why the article specified a specific plant.

Another place to look is at http://www.patentstorm.us and look for roof insulation techniques, many ideas available there.
 
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