Green Building Forum - Lets think laterally I'm £140K over budget Sun, 03 May 2026 09:53:37 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2407#Comment_2407 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2407#Comment_2407 Sun, 22 Apr 2007 23:26:39 +0100 Katymac Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2408#Comment_2408 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2408#Comment_2408 Mon, 23 Apr 2007 09:03:05 +0100 nigel Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2409#Comment_2409 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2409#Comment_2409 Mon, 23 Apr 2007 09:20:43 +0100 Katymac Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2415#Comment_2415 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2415#Comment_2415 Mon, 23 Apr 2007 15:05:37 +0100 Chris Wardle Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2453#Comment_2453 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2453#Comment_2453 Tue, 24 Apr 2007 20:08:05 +0100 fostertom It's unique in that lighweightness is its essence, so in a way the less of the petrochemical stuff there is in it, the better it works. At any rate, accepting a relatively tiny amount of 'eco-nasty' petrochemical material as insulation can result in such enormously 'eco-virtuous' petrochemical in-use fuel savings, that the former is so vastly outweighed by the latter, that it's almost riduculous to insist on sheeps wool or something.
By all means, if sheeps wool etc does as well, then why not go for it - but on the whole the non-petrochemical alternatives
need greater thicknesses therefore more of other materials to create the necessary void space to fill
don't have fringe benefits like ease of ensuring no gaps, membranes/airtightness etc
cost more
are much more palaver generally.

Katymac, external insulation with weathershield is a fine alternative to external strawbales as insulation; just make sure the spec is just right. And don't think of insulating internally, is my opinion.
What's the verdict on the trusses?]]> Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2455#Comment_2455 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2455#Comment_2455 Tue, 24 Apr 2007 20:30:41 +0100 Katymac Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2473#Comment_2473 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2473#Comment_2473 Wed, 25 Apr 2007 07:35:09 +0100 Katymac
I'm trying to get my head round it]]> Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2474#Comment_2474 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2474#Comment_2474 Wed, 25 Apr 2007 08:13:01 +0100 fostertom Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2478#Comment_2478 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2478#Comment_2478 Wed, 25 Apr 2007 08:37:48 +0100 Katymac Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2481#Comment_2481 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2481#Comment_2481 Wed, 25 Apr 2007 09:36:47 +0100 fostertom However, polystyrene isn't so good in this way - it's mid-tec, you need a lot of it and hi-tec ways can work so much better. Or really lo-tec, like straw bales.]]> Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2483#Comment_2483 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2483#Comment_2483 Wed, 25 Apr 2007 09:52:12 +0100 Katymac
Is this Jablite Chris was talking about Polystyrene?]]> Lets think laterally I'm £140K over budget https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2488#Comment_2488 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15&Focus=2488#Comment_2488 Wed, 25 Apr 2007 11:07:44 +0100 fostertom Posted By: KatymacIs this Jablite Chris was talking about Polystyrene?Yes, Jablite's the best-known manufacturer of the rock-bottom cheap expanded polystyrene (EPS), white, compressed beads, like ricecakes. Then there's the higher-performance extruded polystyrene (XPS), pink blue, green etc, bubbles-in-solid, like an aero bar. Trouble is that, while EPS is dirt-cheap, XPS is almost as expensive as far-superior Cellotex and similar.

Posted By: KatymacIsn't Hi-tec expensive
See http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=225&page=1#Item_1]]>