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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Foam - 2 pound blue foam on Holmes on Homes
Watching Holmes on Homes tuesday evening on a Shed channel
he was fixing some freezing plumbing which had been half insulated with what he called 'half pound foam' (which I guess is the expanding foam we get here in cans). He said in cold weather it shrinks and creates gap through which cold air can flow. He coated it with a blue foam, which he called 'Two pound foam'. What is this stuff? http://wiki.diyfaq.org.uk/index.php?...Expanding_Foam does not help. [g] |
#2
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Foam - 2 pound blue foam on Holmes on Homes
He coated it with a blue foam, which he called 'Two pound foam'.
What is this stuff? Instinctively, i'd say it was foam of a different (higher) density |
#3
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Foam - 2 pound blue foam on Holmes on Homes
On Tue, 22 Dec 2009 23:21:31 +0000, "george [dicegeorge]"
wrote: Watching Holmes on Homes tuesday evening on a Shed channel he was fixing some freezing plumbing which had been half insulated with what he called 'half pound foam' (which I guess is the expanding foam we get here in cans). He said in cold weather it shrinks and creates gap through which cold air can flow. He coated it with a blue foam, which he called 'Two pound foam'. What is this stuff? http://wiki.diyfaq.org.uk/index.php?...Expanding_Foam does not help. [g] The two most commonly used spray foam products are low-density, open-cell SPF (nominally referred to as “1/2 pound”) and medium-density, closed-cell foam (“2 pound”). Foametix offers both types of SPF, dubbed Blue Max 050 Open-cell and Blue Max 200 Closed-cell. |
#4
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Foam - 2 pound blue foam on Holmes on Homes
On Tue, 22 Dec 2009 23:21:31 +0000, george [dicegeorge] wrote:
He coated it with a blue foam, which he called 'Two pound foam'. What is this stuff? http://wiki.diyfaq.org.uk/index.php?...Expanding_Foam does not help. Google does if you look... -- Cheers Dave. |
#5
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Foam - 2 pound blue foam on Holmes on Homes
Open cell foam will absorb moisture from the air whenever the pipe is
at the dew point, which will then freeze should the opportunity arise. Closed cell foam by its nature will not. Armaflex is a preformed pipe insulation which is closed-cell. |
#6
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Foam - 2 pound blue foam on Holmes on Homes
Dave Liquorice wrote:
On Tue, 22 Dec 2009 23:21:31 +0000, george [dicegeorge] wrote: He coated it with a blue foam, which he called 'Two pound foam'. What is this stuff? http://wiki.diyfaq.org.uk/index.php?...Expanding_Foam does not help. Google does if you look... i've googled: oh dear, 2 days ago i filled the gaps at the top of an exterior wall with foam, was going to cap it with a thin layer of concrete, (before the slates go back on). But the foam may move with heat variations, the concrete may crack, and water seep in, so i guess that to do a long-lasting job when the snow's gone i'll have to clear it all out and use concrete to infill. [g] |
#7
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Foam - 2 pound blue foam on Holmes on Homes
george [dicegeorge] wrote:
Dave Liquorice wrote: On Tue, 22 Dec 2009 23:21:31 +0000, george [dicegeorge] wrote: He coated it with a blue foam, which he called 'Two pound foam'. What is this stuff? http://wiki.diyfaq.org.uk/index.php?...Expanding_Foam does not help. Google does if you look... i've googled: oh dear, 2 days ago i filled the gaps at the top of an exterior wall with foam, was going to cap it with a thin layer of concrete, (before the slates go back on). But the foam may move with heat variations, the concrete may crack, and water seep in, so i guess that to do a long-lasting job when the snow's gone i'll have to clear it all out and use concrete to infill. [g] Hardly a critical location. Even on my gable end wall, which faces SW and has a minimal slate overhang, I only used mortar. Stick some pva in the mix if you're woried. |
#8
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Foam - 2 pound blue foam on Holmes on Homes
On 23 Dec, 01:14, "js.b1" wrote:
Armaflex is a preformed pipe insulation which is closed-cell. Armaflex is also neoprene, so that the cells flex if they do happen to be wet and frozen. Stiffer foams (PU, PIR) will tend to crumble gradually over the years. One of my favourite things in the workshop ever is a roll of "Armaflex gaffer tape", 3mm sticky-backed neoprene. It makes non-slip pads under furniture, anti-vibration handle wrappings on power tools, draught excluders on windows, the works. |
#9
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Foam - 2 pound blue foam on Holmes on Homes
Stuart Noble wrote:
george [dicegeorge] wrote: Dave Liquorice wrote: On Tue, 22 Dec 2009 23:21:31 +0000, george [dicegeorge] wrote: He coated it with a blue foam, which he called 'Two pound foam'. What is this stuff? http://wiki.diyfaq.org.uk/index.php?...Expanding_Foam does not help. Google does if you look... i've googled: oh dear, 2 days ago i filled the gaps at the top of an exterior wall with foam, was going to cap it with a thin layer of concrete, (before the slates go back on). But the foam may move with heat variations, the concrete may crack, and water seep in, so i guess that to do a long-lasting job when the snow's gone i'll have to clear it all out and use concrete to infill. [g] Hardly a critical location. Even on my gable end wall, which faces SW and has a minimal slate overhang, I only used mortar. Stick some pva in the mix if you're woried. there were huge gaps in the top of the wall (north facing) filled with straw from decades of birds. It will take perhaps 20 buckets of cocrete lugged up the ladder, and a few hour removing the foam, but i think i'd better do it as the foam wouldnt last many decades. [g] |
#10
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Foam - 2 pound blue foam on Holmes on Homes
On Wed, 23 Dec 2009 00:20:17 +0000 (GMT), "Dave Liquorice"
wrote: On Tue, 22 Dec 2009 23:21:31 +0000, george [dicegeorge] wrote: He coated it with a blue foam, which he called 'Two pound foam'. What is this stuff? http://wiki.diyfaq.org.uk/index.php?...Expanding_Foam does not help. Google does if you look... I've seen Holmes on Homes mentioned a few times and kept wondering WTF does Eamonn know about houses ...but now I know This might be of interest http://www.envirofoaminsulation.com/versus.html |
#11
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Foam - 2 pound blue foam on Holmes on Homes
today i started ripping the interior foam from the top of the wall
where I put it last week, and i've ordered this: http://www.expandingfoamkits.co.uk/p...mplete-Kit.htm Smallest of the Touch 'N Foam Kits - (15ft2 or 1m2 at 1 inch or 25mm) which I hope is the correct kind of exterior closed cell foam for using where water might dribble in. george [dicegeorge] wrote: Stuart Noble wrote: george [dicegeorge] wrote: Dave Liquorice wrote: On Tue, 22 Dec 2009 23:21:31 +0000, george [dicegeorge] wrote: He coated it with a blue foam, which he called 'Two pound foam'. What is this stuff? http://wiki.diyfaq.org.uk/index.php?...Expanding_Foam does not help. Google does if you look... i've googled: oh dear, 2 days ago i filled the gaps at the top of an exterior wall with foam, was going to cap it with a thin layer of concrete, (before the slates go back on). But the foam may move with heat variations, the concrete may crack, and water seep in, so i guess that to do a long-lasting job when the snow's gone i'll have to clear it all out and use concrete to infill. [g] Hardly a critical location. Even on my gable end wall, which faces SW and has a minimal slate overhang, I only used mortar. Stick some pva in the mix if you're woried. there were huge gaps in the top of the wall (north facing) filled with straw from decades of birds. It will take perhaps 20 buckets of cocrete lugged up the ladder, and a few hour removing the foam, but i think i'd better do it as the foam wouldnt last many decades. [g] |
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