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| Thread ID: 118159 | 2011-05-22 03:48:00 | Retrofitting Wall Insulation | pine-o-cleen (2955) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1204241 | 2011-05-24 02:27:00 | I couldn't care less whether the wall is insulated or not, as long as the room is. ;) | R2x1 (4628) | ||
| 1204242 | 2011-05-24 03:12:00 | The air cavities in walls are reasonable insulators as they are. It's windows that are the problem. They are easy to fix: We bought thermaldrape lining with the curtain tape already on it and hooked it onto top-fix curtain rails left over from the previous-owner's net curtains. The difference was amazing. A thermometer on the windowsill showed only 2° warmer than outside. This indicated an amazing level of insulation between the glass and the room, caused by the thermaldrape lining and the regular curtains on top. A thermometer in the room at the same level as the windowsill was 11° warmer than the one on the windowsill. In the centre of the room the temperature was another 3° warmer still The figures were - 8° outside 10° windowsill 21° inside the room near the window 24° centre of the room There are several tricks to doing this right: - no gathering on the lining (which means that it must be entirely separate from the regular curtains) - the curtain tape should face towards the inside of the room. This causes the top edge of the lining to press up against the face of the reveal to stop warm air from the room leaking over the top of the lining - lining to hang 200mm below the bottom sill. The lack of gathering gives the lining a good seal against the sill to stop cold air leaking out the bottom - one of the lining halves should have a 300mm extension to overlap the other half, with velcro to hold it extended when in use (It is not much use having thermaldrape lining on regular curtains if warm air from the room can leak over the top and cold air can leak out the bottom. The glass surface is like a motor - it cools the air touching it, sending it downwards and pulling warm air in at the top) |
BBCmicro (15761) | ||
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