leenewham wrote: OK Tim, it's an odd post that I don't really understand?
It's about testing the conventional wisdom.
leenewham wrote:1: Why do you think the SysSoc insist on people having less efficiently insulated homes in the Thorpes for the sake of keeping things as they were in the 1900s? You can upgrade existing windows, wood is a better thermal insulater than UPVC. You can insulate lofts and internal walls in conservation areas.
In what sense is wood is a better thermal insulater than UPVC? A quick google
gives this information
There is a lot of talk about the comparative efficiencies of different types of doors. Timber has a relatively poor thermal efficiency compared to uPVC, but at least it is not uPVC. Timber with an insulated core is a compromise and people get very exercised about what thickness is best and the relative merits of each.
A typical external door is broadly 1.7 sq m in area. A uPVC door with a U-value of 1.8 will emit about 70W per hour of heat in the coldest months. A solid hardwood door with a U-value of 3.0 will emit 115W. It is not clear, to me at least, that it is worth putting up with all the negative aspects of uPVC for that relatively small advantage
From which it sounds that in a strict scientific sense, wood is less efficient. Perhaps I should look it up in "
Engineering Tables and Data" - a neglected classic, if ever there was one

. But as my old chemistry teacher used to say, the most important thing to know about any material is its cost - so may be you mean that you can get the same level of termal insulation with wood as with uPVC, but at a lower cost. In which case, why do some people waste their money on uPVC? Are they being missold to?
leenewham wrote:
2: Haven't we all been insisting that the front of the Greyhound is retained as far as possible as it is? Yes, we have, because it's part of what gives the area an identity. Because it's infused with history and charm and because it's made using materials, methods details and craft we simply don't do any more. BEcause we have knocked down far too much in the sake of cheap square footage already, look at Kirkdale, are you saying that what has gone on in Kirkdale is good?
Certainly not, but I'm interested to know why we've had so much bad redevelopment, when I do believe we could have had decent, sensitive redevelopmet using modern engineering and materials.
leenewham wrote:
3. I quite like the black box. I think the Portacabins in Bell green are ugly and the white building really badly finished.
I can't say I much like the black box, but a significant point about it is that it's a private development, where cost does not appear to have been a major constraint, which will perhaps have led to better general quality. So exactly the sort of development which will inspire ambitious architects to give their best. But I am more interested in why we don't seem to have a decent 'vernacular' architecture.
leenewham wrote:
4. You said "So how about a design competition for a resolutely contemporary alternative "New" Greyhound?" Do you really think this? Why? Why build a new building when the old one was fine?
Because the evidence is that it is not commercially sustainable. Fine it may have been, but for what, now?
leenewham wrote:
What happened to Tim, Tim, come back, you have gone all strange!
Sorry Lee, and any one else upset by these arguments, but I am just tired of wishful thinking, and a general reluctance to get to grips with economic and engineering realities. It's not that strange.