In my loft I have created a clean, and slightly insulated storage area by boarding and installing some foil bubble wrap insulation where I store and occasionally read books (its not a conversion but just tidy storage). Its size is approx 3m x 3m and is pitched roof. The foil comes down from the pitch about half way and then drapes to the floor. There is still a dirty area behind these foil walls.
During these hot UK months the insulation hasn't been thick enough to stop this area getting up to 33-35C which is about 10C too hot to read up there. I therefore purchased a 5000 BTU aircon unit and have the vent going down the loft hatch and out of the bathroom window (2.5 to 3 mtrs). Its a little further than the standard hose comes with so I had to add a 1.5 meter extension which I know may make it a little less effective.
The problem is the unit isn't doing as good a job as I expected it to. After 3 hours of running late afternoon (when the sun is getting less strong) its still up near 29C up there so it has done something but not as much as I had hoped for.
I am wondering why this could be, could it be any of the following reasons:-
Thanks
M
During these hot UK months the insulation hasn't been thick enough to stop this area getting up to 33-35C which is about 10C too hot to read up there. I therefore purchased a 5000 BTU aircon unit and have the vent going down the loft hatch and out of the bathroom window (2.5 to 3 mtrs). Its a little further than the standard hose comes with so I had to add a 1.5 meter extension which I know may make it a little less effective.
The problem is the unit isn't doing as good a job as I expected it to. After 3 hours of running late afternoon (when the sun is getting less strong) its still up near 29C up there so it has done something but not as much as I had hoped for.
I am wondering why this could be, could it be any of the following reasons:-
- 5000 BTU isn't enough for a 3 x 3m area?
- Is having the loft hatch open causing all the cool "air-con" air to fall out of the loft hatch, and more hot air from downstairs to rise up into the loft? Should i block off the hatch when up there?
- another reasons?
Thanks
M