tag:blogger.com,1999:blog-14798090.post7564393014348954742..comments2024-03-27T06:42:31.956+00:00Comments on Mark Brinkley (aka House 2.0): What I learned at the BBAMark Brinkleyhttp://www.blogger.com/profile/03473684038478246288noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-14798090.post-91789195362798540342010-05-05T13:55:37.729+01:002010-05-05T13:55:37.729+01:00I've just had a read through the certificate f...I've just had a read through the certificate for kontorl on the BBA website, and I am suprised at how high the R-values quoted for air cavities are (above R-1!). Surely these are incorrect, they appear to be way too high.<br /><br />Also, this product seems to have been tested in the hot plate (not hot box)method and then had the R-values added for air cavities, why not use both methods if HenryGoddardnoreply@blogger.comtag:blogger.com,1999:blog-14798090.post-13752291360708797522010-04-29T10:32:41.335+01:002010-04-29T10:32:41.335+01:00The drawback with one-off testing or modelling is ...The drawback with one-off testing or modelling is that it can only confirm the performance of the unit tested or modelled and it does not prove that all products supplied by the manufacturer concerned will be to that specification. The BBA Approval process ensures that all production is as per the assessed product;the BBA Certificate details the results and that is how the product will perform inAlan Thomasnoreply@blogger.comtag:blogger.com,1999:blog-14798090.post-24818847815560794892010-04-28T21:00:46.617+01:002010-04-28T21:00:46.617+01:00For a horrible moment I thought you forgot to ask ...For a horrible moment I thought you forgot to ask about multifoils!<br /><br />Interestingly the Passivhaus Institute actually require thermal modelling of windows in preference to hot box testing. The way it was explained to me was that a manufacturer could submit a window with specially picked less dense and super dry timber and so get a better result.<br /><br />Others who follow this blog Nick Granthttps://www.blogger.com/profile/11949493936074643201noreply@blogger.comtag:blogger.com,1999:blog-14798090.post-86041030670522048892010-04-27T11:53:23.886+01:002010-04-27T11:53:23.886+01:00What evidence do you have that wool lasts longer?What evidence do you have that wool lasts longer?Mark Brinkleyhttps://www.blogger.com/profile/03473684038478246288noreply@blogger.com