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  #41 (permalink)  
Old 24th June 2019, 08:51 AM
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Originally Posted by bigpearl View Post
Middle of the hot season here sees 29C @ 5am outside and 31C inside, perhaps we picked the wrong island group. That's why god made air conditioners.

Cheers, Steve.
Hi Steve

We are in Davao, just outside the city centre at about 80m elevation. The temp is usually 24-25 min at night.
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  #42 (permalink)  
Old 28th June 2019, 11:03 AM
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I haven't seen it mentioned here yet. The PE double sided foam insulation degraded after a few years so we used rockwool insulation above the ceilings to provide a barrier from the attic heat. A huge difference that lowered the temp throughout the house. Fiber, Rock Wool etc. can be found here.

https://www.olx.ph/all-results?q=ins...onName=&page=2
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  #43 (permalink)  
Old 29th June 2019, 07:17 AM
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I haven't seen it mentioned here yet. The PE double sided foam insulation degraded after a few years ....

Was it exposed to sunlight? uV light will degrade that type of insulation, generally it is pretty good as long as you protect it from light. (And a source of flame as it will burn erasily and give off toxic smoke too)

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  #44 (permalink)  
Old 29th June 2019, 09:26 AM
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Was it exposed to sunlight? uV light will degrade that type of insulation, generally it is pretty good as long as you protect it from light. (And a source of flame as it will burn erasily and give off toxic smoke too)
Not "directly" exposed to sunlight or light.

The double foil sided PE insulation was installed using the same process used throughout the PI. It was placed over the C-purlins then the painted galvanized steel was placed over the PE foam. The PE Foam was the best quality we could get. Both sides of the foil have degraded and the thick white PE are virtually non existent from the heat alone.

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Old 30th June 2019, 12:36 AM
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Hi Steve

We are in Davao, just outside the city centre at about 80m elevation. The temp is usually 24-25 min at night.
Sounds perfect Dave, wish it were the same in my neck of the woods though since I left a week ago Bengie tells me the temp has been dropping and we are both glad that we invested in insulation, onward we march and I'm sure I'll get used to the summer temps but not sure about the humidity,,,,,, in the house with A/C on in the middle of the day, I can see it coming.

Cheers, Steve.

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Old 30th June 2019, 12:49 AM
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Not "directly" exposed to sunlight or light.

The double foil sided PE insulation was installed using the same process used throughout the PI. It was placed over the C-purlins then the painted galvanized steel was placed over the PE foam. The PE Foam was the best quality we could get. Both sides of the foil have degraded and the thick white PE are virtually non existent from the heat alone.
That's not good Joe, how long ago/how old is the PE (supposed) insulation? Only my opinion but that type of insulation is only good as sarking, send the roof leaks into the gutters. From research it has an insulation value of 1 while the fibreglass batts we installed rate 17 in PH standards or in OZ standards R3.0, tried to get R3.5 but not available but very happy to pay transport cost from Subic to secure, has made a huge difference to the house temp by 5 to 6 deg C without A/C. We did look at rock wool but with suspended ceilings I was worried about the extra weight.

Cheers, Steve.

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  #47 (permalink)  
Old 16th July 2019, 11:22 PM
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Just checked my most recent bill.
consumption 365 kw, @7.73 per kw = 2,821.45

Condo, 2 occupants, with at least 1 of the A/Cs running almost 24x7.
1 computer on 24x7, another on probably 6 hours per day.
Electric stove (no gas bill)
A bit of a late reply Tiz but that is a really cheap rate, ours works out to be 10.8 pesos per Kwh. Well done.

Cheers, Steve.

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  #48 (permalink)  
Old 17th July 2019, 12:10 AM
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Well a very welcome cool change has hit in the last week, 28 to 32C though at the moment we are sitting under a tropical storm or what's left of it, very wet but great temp.
Our next power bill came in from Luelco and surprised at only 3,002 pesos after the last 4,500 bill. Probably the cooler weather is helping, we also upped the temp in the bedroom to 27C and sleep comfortably with just a top sheet, probably acclimatising, will be better once I put the insulation in the ceiling. With the cooler weather we have only run the big A/C 3 or 4 times. The two ceiling fans we put in the living area were a great investment and help with air movement and are cheap to run. We also put in COB LED light fittings 9 in total @ 15 watts on 3 circuits in the living area as the previous lighting was dismal and an incandescent set up, also changed all other lights to fluro bulbs.

I am an advocate for grid tied solar and was prepared to spend 5 to 600K for a system to save on power bills but that now appears to be a false economy based on our electrical consumption, if we install a swimming pool in the next year or so then I will revisit that scenario.

Cheers, Steve.
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