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 Post subject: Fitting Kingspan.
PostPosted: Mon Mar 02, 2009 2:49 pm 
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Afternoon all,

I'm thinking about fitting kingspan to the tiled roof in my loft. It's all boarded out up there and is only partially full of 'things to keep' (JUNK!)

I have found though, that a little TV has appeared and an old, but extremely well fitting chair, a small oil filled rad, as well as a small fridge.....with tins of beer in it!!!!!!

:shock:

Now, I was hoping to insulte it so that it's cooler in summer and warmer in winter. It does get hot up there in summer. I don't really plan on boarding and skimming it as I feel it will attract some of the female members of my household up there, which I don't want :LOL: The odd draught is no problem either.

The roof is proper slates, it's a 1920-30s former council house, there's no roofing felt and a lot of dirty grey hairy plaster on the underside. :lol: All in all the underside of the roof is in good nick IMO.

I have some kingspan and a mate of mine offered me a bit cheap that he's got in his unit. Said he doesn't envisage using it in the near future and it's taking up valuable space.

How thick do I need it for this appliaction (doesn't have to fit regs just help out with the temperature). Also is it best to fit it in between the joists (I assume so) and how's it best to fix it. I've read about various techniques so thought the best thing was to ask on here.

As always, many thanks for the help :thumbright:


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 Post subject:
PostPosted: Mon Mar 02, 2009 2:55 pm 
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You'll need to be more specific about the product. Kingspan do a whole range of different insulation products. If you have panels, what type are they?

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PostPosted: Mon Mar 02, 2009 3:01 pm 
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GeeWizz,

Panels are the silver foil lined 75mm ones. I think my mates ones are 100mm. Unsure of the correct name for them. It doesn't have to be a perfect job, but thought As I had these left over from my folks extension and as my mate will let me have them cheap off him it would be worth doing.

After re-reading my initial post, the chair is a light weight fishing one, I'm not going to come crashing through the ceiling (at least I hope not).


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PostPosted: Mon Mar 02, 2009 3:08 pm 
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Well, if you aren't worried about the aesthetics, why not cut them to width with a slight wedge shape and just jam them in?
Or you could make noggins that support them?

I guess it's all about how much effort you want to go to versus how good you want it to look. If you feel really ambitious, put up plasterboard and pop the panels in the back as you go.

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PostPosted: Mon Mar 02, 2009 3:14 pm 
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I've been doing this at home.

Cut the insulation tight between the rafters, then seal the edge to the wood with silver foil tape available from most builders merchants. The tape holds it in and also seals any drafts.


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PostPosted: Mon Mar 02, 2009 5:28 pm 
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Great, Thanks for the help.

Do I need to leave a ventalation gap behind the kingspan???

I've read a few posts that say you do, but I don't know whether thats applicable here???

:scratch:


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PostPosted: Mon Mar 02, 2009 5:44 pm 
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Best it you can.

I just wedge it in so it was flush with the rafters, then taped it.

I used the foil tape that we use for pipe lagging, as I said most builders merchant will stock it.


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PostPosted: Tue Mar 03, 2009 1:03 am 
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If your rafters are 100mm and the kingspan is 100mm or 75mm then you
will not be able to use it between the rafters as you need to leave a
50mm air gap, unless you plant on a 50 x 50mm batten to the underside
of the rafters
Personally l would invest in a shed much cooler in the summer and more
cosy in the winter with a heater and you can also put a lock on the
inside :lol:

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