An idea to test insulation

groar · 12-27-08, 04:47 AM

Lately it "snowed" (in fact melted snow and hail) by here. I took a picture of my PV solar panels covered of white :

The fun is that at that moment they were producing

Then I looked at my neighborhood and saw a "snow hole" on a white roof. This made me though he has an insulation problem and looked at my whole roof (west and east sides) :

This is logical that there is no "snow hole" on my roof as the insulation isn't under the roof, but horizontally over the ceiling, ie we can't use the space under the roof.

This test can't say you if your insulation is good, but sometimes it can say you that it's bad.

Denis.

SVOboy · 12-27-08, 12:17 PM

How you don't mind that I fixed the images in your post,

Also, yeah. Up at school where most of the buildings are 200 years old it's really easily to tell the difference looking at one of those building and comparing to the new 2 year old dorms the day after a 1 foot snowfall,

12-27-08, 04:47 AM	#1
groar X-Frenchy: very Join Date: Sep 2008 Location: Toulouse, France Posts: 153 Thanks: 0 Thanked 2 Times in 2 Posts	An idea to test insulation Lately it "snowed" (in fact melted snow and hail) by here. I took a picture of my PV solar panels covered of white : The fun is that at that moment they were producing Then I looked at my neighborhood and saw a "snow hole" on a white roof. This made me though he has an insulation problem and looked at my whole roof (west and east sides) : This is logical that there is no "snow hole" on my roof as the insulation isn't under the roof, but horizontally over the ceiling, ie we can't use the space under the roof. This test can't say you if your insulation is good, but sometimes it can say you that it's bad. Denis. __________________ Earth absorbs 1.8 t CO2/head/yr, while a French generates 6.2 t CO2/yr To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. kg saved 06/08-08/09: 1816.9+382.9 (ecodriving / 1420mi not driven) = 2199.8 To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. (2.66 kg/l diesel) kg saved by 3kWc photo-voltaic solar panels : 187 kg/yr To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. (59.1 g/kWh) Radioactive wastes saved by 3kWc photo-voltaic solar panels : Long life (>100,000 years) : 2.85 g/yr (0.9 mg/kWh) Short life (<300 years) : 31.7 g/yr (10.0 mg/kWh) Based upon "official" French figures... Last edited by SVOboy; 12-27-08 at 12:15 PM..

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12-27-08, 12:17 PM	#2
SVOboy Administrator Join Date: Aug 2008 Posts: 291 Thanks: 3 Thanked 4 Times in 4 Posts	How you don't mind that I fixed the images in your post, Also, yeah. Up at school where most of the buildings are 200 years old it's really easily to tell the difference looking at one of those building and comparing to the new 2 year old dorms the day after a 1 foot snowfall,