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TBH roof insulation

 
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Cosmicwillow
Guard Bee


Joined: 07 Oct 2015
Posts: 82
Location: U.K. Notts/Lincs/Yorks border

PostPosted: Sat Oct 10, 2015 8:41 pm    Post subject: TBH roof insulation Reply with quote

Thinking of using expanding foam from can to fill top third or so in apex on inside of pitched roof as insulation. Obviously installed and cured before using on active hive. Anyone have thoughts about fumes that may be given off even when the foam has cured?
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trekmate
Golden Bee


Joined: 30 Nov 2009
Posts: 1123
Location: UK, North Yorkshire, Bentham

PostPosted: Sun Oct 11, 2015 8:21 am    Post subject: Reply with quote

Not sure on the fumes, but you need insulation ON the top-bars. There should be air circulating in the roof space which can still chill the bars. The aim is to keep the top-bars warm in winter and cool in summer. Your idea would work in summer, but have little effect in winter.

I avoid anything "chemical" if at all possible. My preference is for a mix of wood shavings and sawdust in an old pillow case - right size, flexible (around a feeder), light weight and free.
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Cosmicwillow
Guard Bee


Joined: 07 Oct 2015
Posts: 82
Location: U.K. Notts/Lincs/Yorks border

PostPosted: Sun Oct 11, 2015 9:36 am    Post subject: Reply with quote

ok, will use your idea of 'pillowcase' filled with woodshavings/sawdust in direct contact with the bars
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ingo50
Scout Bee


Joined: 30 May 2014
Posts: 311
Location: Newport, Gwent, Wales, UK

PostPosted: Mon Oct 12, 2015 7:38 pm    Post subject: Reply with quote

I have seen a mature sheep fleece used, also old woolen jumpers.
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