Before people start thinking I'm some combined Mike Holmes/Bob Villa on steroids. This posting spans a couple of weekends .. and a bit of mid week magic.
So the task at hand was to finish framing the ceiling void in the extension, install insulation, run the ducting and plasterboard the lot. Piece of cake
You'll have seen in the previous posts that the old area was a bit of a falling apart Artex mess. The whole thing came down with minimal effort. As usual, putting it back took a bit of extra work. All the key bits were in place however; Tom re-routed the hot water pipes and got his mate to install the vent hood for the 150mm kitchen exhaust.
So first, I decided to put on the insulation. Given that it was pretty cold with single paned windows, a grossly undersized rad and no insulation whatsoever, I'm expecting big things now. The kitchen may even end up being a bit too warm with the big vertical rad, double glased windows and now insulation. Let's see this winter. I'm expecting super cold temps to make it all worthwhile.
I grabbed 50mm Celotex. This was the largest width I could fit between the rafters (and much cheaper than say 100mm). Cutting it was a breeze with a extending knife - although recommend wearing a dust mask and doing it outside as it looked a bit like the North Pole afterwards (or Pablo Escobar's kitchen table). The Celotex is foil lined on both sides for moisture protection and is rigid enough to hold itself in place. The density also gives it better insulation properties. A 120cm x 240cm sheet did the whole area with some left over. Joints were sealed with foil tape (really cool stuff - like sticky kitchen foil).
After the Celotex came the vapour barrier. This keeps all the moist air on the inside of the house so it doesn't escape through the insulation and condense on the other side leading to nasty things like rot/mould/etc. The material looks like old garbage bags fused together in a big sheet. Cost-wise however, it doesn't look a thing like old garbage bags fused together in a big sheet. This was fixed in place in one sheet using a staple gun to hold in place. Good ol' duct tape was used to seal the joints.
Later came the framing for the duct work. This would have been a great time lapse photography piece. Except I'm not so talented nor motivated to set this up myself. Maybe the next reno project. So the challenge - I decided to go with 150mm kitchen ducting. The problem - 150mm is 6" which is BIG. It doesn't turn corners very well and takes up a lot of space. I initially thought I'd do the whole thing with flat channel ducting and put it together like LEGO. That didn't work entirely. So thanks to the Internet, mixed and matched some semi-rigid aluminium round ducting, flat channel pieces and an adapter to connect the two. In all, it somehow worked. Joints were sealed with mastic sealant and double sealed with special PVC ducting tape. The aluminium pieces used my favourite aluminium duct tape. And the valuable lesson/biggest surprise of all .... Duct Tape, the centre of all household repairs .. ISN'T PARTICULARLY GREAT ON DUCT WORK. Amazing! Look it up if you don't believe me. Generations of people have been mislead, including myself. Go impress your friends with this great piece of trivia.
But the duct work worked after all. 150mm throughout. This thing is really going to suck. Whenever the hood decides to arrive.
Last came the plasterboard. With all the duct work in place, I just need to conceal my great work. Good thing there is a blog so it can be appreciated by millions around the world (or at least a few appreciative friends/family). I figured to celebrate my achievement and make plasterboarding a bit easier, I'd go and purchase a new Dremel tool to add to the collection - a hole saw kit. Basically a poor man's router. This think makes cutting plasterboard details a breeze - an a lot more fun.
You can see from the results, it looks much better now. Ready for some finishing work and plastering on top.
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The startin' place |
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Celotex polysomething insulation for roof voids |
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Lots and lots of plasterboard |
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Celotex in place |
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Now some vapour barrier (glorified garbage bags) |
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Vapour barrier in place now sealed with good 'ol duct tape |
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Beginnings of the frame for the ducting |
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Some ductin' in place |
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Scott's got a new gadget |
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The finishin' place - ready for cornerin', tapein' and plasterin' |