I've also seen stories of melted vinyl siding on 3-deckers[1] that are=20 next door to others that installed the newer thermal windows (I forget=20 the term for the glass). [1] 3-decker might be a local term in Worcester MA area. They're 3=20 story apartment buildings on a quarter acre of land and they're really=20 close together. Joe W On 11/15/2013 9:11 PM, c h wrote: >> You are doing on a small scale, here in the UK we do it on a large scale > ... >> > http://www.dailymail.co.uk/news/article-2410972/Walkie-Talkie-building-Wa= lkie-Scorchie-skyscraper-firm-scaffolding-protect-nearby-shops.html > Folks in USA got the thing on somewhat greater scale, actually. The > similar kind of "moving hot spot" beneath the continent is believed by ma= ny > to melt out the Snake River Plain :-) --=20 Joe Wronski jwronski@stillwatereng.net www.stillwatereng.net --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .