Trying to Quieten the 110KVA Generator

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awemawson:
Thanks Phil, yes that's the sort I've ordered along with a conventional stubby flat ended drill.

. . . .BUT . . .do I fancy removing 40 odd spot welds and possibly end up with a messed up main cowl body . . NO !

So I decided just to abandon the original and make another - I had the materials and it undoubtedly took less time than drilling out the spot welds. So it's (re) made and fitted and the Yorkshire boarding weather strips are finished.

Now I'm off to measure up for ceiling mesh :thumbup:

(anyone want a redundant cowl ???)

awemawson:
This afternoon I finished off fixing the Rockwool acoustic slabs to the lower half of the south wall.

I'd been putting this off as the substrate is rather variable cement blocks peppered with hard bits of slag and I knew that it wasn't going to be straightforward.

The fixings I'm using are miniature 'frame fixings' 5 mm diameter by 50 mm long and are intended to be inserted into a 5 mm drilled hole, and the metal screw tapped home to expand the plastic plug. I rapidly found that the screws all too easily bend when even lightly tapped and that driving them home with an electric screwdriver improved the success rate enormously !

Just the west wall round the recently installed cowl to be lined and when that's done I can start the ceiling. Six 1250 x 2400 x 5 mm galvanised weld mesh ordered from F H Brundel which should arrive in the coming week.

awemawson:
I've been cogitating on how to seal off the lower edge of the west wall. In its original incarnation as a stable the Yorkshire Boarding deliberately didn't stretch down to the concrete floor. This was to prevent rain wicking up the end grain and rotting out. The planks stop about four inches short, with the lowest horizontal beam being about seven inches from it's lower edge.

I considered a couple of courses of brickwork and a bit of damp proof course under the timber, but water will still puddle on the DPC.

Then I remembered that I had a few spare lengths of six inch 'twin wall' electric cable ducting that not only had an outer diameter of seven inches (ideal!) but was obviously made from rot proof plastic, AND the curvature would shed water from outside BACK outside. Perfect :thumbup:

Cutting a suitable length this morning it proved to fit very nicely. Just in case it wants to pop out I've run some expanding foam along the inner / lower edge to keep it in place. This can be trimmed later today when it's 'gone off'

Unconventional I suppose but I think that it will be effective.

awemawson:
Later this morning, in a nod to Health and Safety, I built a safety barrier round the projecting cowl to stop people bumping into it. (Pete. you will recognise the bits !!!)

Then after lunch I was able to finish the bits of the South and North walls abutting the West wall that previously I'd had to leave, and then finally finished fixing acoustic slabs to the West Wall.

So that's all vertical surfaces covered in 25 mm Rockwool Acoustic Slab - just the ceiling to do which is going to require a bit of ingenuity, but that will have to wait until the 50 x 50 mm mesh arrives so time to think about it.

(That's 58 slabs fitted or 41.76 square metres, the ceiling is a further theoretical 23.4 square metres or another 32 slabs which is lucky as I have 38 left!)

The canvas for the 'radiator exhaust air tunnel' has arrived, but I won't fit that until the ceiling is done or it will get in the way of ladders etc.

kayzed1:
one assumes a grill and mesh to keep out the critters.. :beer:

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