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XPS under foundation appears to be structurally OK and in line with modern energy efficiency trends. But what about long term effects? Will it hold the building in 50 years time?

Thanks to all but my question stands: how market sees timber frame houses? There are many research that show how cars of different makers depreciate with time. I can't find anything similar about houses. My point is, if in 50 years time the market value of such a house is around zero, ergo it...

Timber frame seems to be getting ground and is or will be very soon the most popular construction method in this country. In Scandinavia and the US it is already the case. Still, frankly, I have my doubts. Yet, being a rational person I wonder if there is a rational reason to say that frame...

Sorry for being silly, Tony, just to make sure I got you right: full-fill, no gap, yet cavity trays and weepholes? is that right? Weepholes are needed to remove moisture not to vent the cavity?

Does that mean that a weep hole is not needed?

rockwool = full fill? what about good old gap for ventilation?

The U value of both is basically the same, the difference is within the margin of error.

Which one is better for a new built: rockwool or EPS? Rockwool doesn't look sturdy enough. Will it fall down with time? EPS, on the other hand, needs to be fixed firmly to the inner skin. Will it stay like that? Yes, the question may seem silly, sorry.

Well, I have Chudley and a few other books and none of them mentions bond beams. I thought I was missing something.

So, if I use a conventional CMU, not AAC, I don’t need a bond beam? Honestly, a comparative approach can be eye opening.

Thanks for the advice. As far as a bond beam is concerned I find it a bit confusing. From the European perspective a bond beam is a compulsory element on buildings made of aerated concrete blocks. However, I do not see it even mentioned in my British books. Why is that?

There is something I do not understand and would be grateful for clarification. The idea of a control joint is to allow a wall to move and therefore prevent it from cracking. At the same time we put rigid elements such or a bond beam that prevent movement. Do we really need control joints in...