| The Craftmans Shop > New from Old |
| Trying to Quieten the 110KVA Generator |
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| AdeV:
--- Quote from: awemawson on October 20, 2020, 10:19:13 AM ---...a bankrupting load of steel... --- End quote --- I know the feeling: I recently bought 7 lengths of 25mm square box, a length of 25mm equal angle & a 25x3mm flat bar; nearly £200 delivered! I misheard him on the phone, thought it was £90odd (thinking, that's quite reasonable)... didn't hear the 1 on the front of it!! Still... all my orange "B&Q-like" shelving no longer sags, with 3 steel reinforcement bars under each shelf :thumbup: |
| awemawson:
That lot listed above, plus two off 2 metre x 1 metre x 1.6 mm Zintec steel sheets was £247 :bugeye: Steel has risen enormously in the last couple of years. |
| awemawson:
As soon as I could escape from other duties this morning I isolated the lighting supply to the generator room and took down the two LED strip lights and one LED flood light. Leaving the cables dangling (but taped off) I will have to work the mesh sheets round them. To start the first mesh I put screws into the side of the two joists near the west wall, and fixed short lengths of fencing wire to them to initially suspend the mesh (trimmed to width) at an angle so that I could then 'load' it with Rockwool, pivot it into place and screw it up. To help this process I made a suitable temporary prop. Needless to say it wasn't quite as simple as that - but I got a tolerable result fixing the first too meshes. The mesh size is about 50 mm longer than the Rockwool length so 1200 mm x 50 mm bits have to be packed on the exposed edge as I work from West to East. The next mesh will incorporate the lighting cables, and I'm tempted to cut it lengthwise where the cable emerges and put it up as two bits. |
| awemawson:
This afternoon when I was released from Puppy sentry duty I managed to get a further one and a half more meshes up. As I thought that I might have to, I ran a partial sheet up to the lighting cables and a full sheet beyond which worked out quite well, though obviously the room must taper a bit as the sheets are getting too long - next one wil need to be shorter by one mesh I think to avoid scaring the walls too much as it's moved into place. |
| Muzzerboy:
--- Quote from: awemawson on October 21, 2020, 12:31:39 PM ---....avoid scaring the walls too much as it's moved into place. --- End quote --- Yes, they must be petrified by now ;-) IIRC, the building regs for noise control recommend / require a gap between rockwool and the next panel for most effective noise reduction. So the gap between the panels and the roof certainly wouldn't be a bad thing on that basis, assuming they are correct. Looking forward to the acid test ie dBA measurement of the final system! I suppose you might argue the acid test is avoiding a bad review on Tripadvisor or whatever. |
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