Hi,<br><br>The response from Henk makes me think of another subject where I'd love to learn more, and perhaps the knowledge on this list can help this?<br><br>I'm aware that:<br>-An alarming number of Hurricane Katrina survivors got severe health problems (some died) from being relocated to emergency mobile homes made from fresh OSB.<br>
-In comparative research on particle board, plywood and OSB, the OSB ranks as the highest for fungi susceptibility.<br>-Last year I read that 60% of OSB on the European market came from threatened rain forest.<br>-I've been made aware that the production of OSB (and burning of wood chips) has caused a 'vacuuming' of the forest floor, reducing the necessary amount of carbon in forest eco-systems.<br>
-As part of my University research in 2008, I made a price comparison between using solid wooden boards compared to OSB and investment was equal (in CZ), only the time of mounting it spoke in favour of OSB.<br>-OSB may act as a ticking bomb in case of poor detailing by the construction company, allowing moisture to get to the OSB: they will rapidly turn black with fungi spores, but without visual signs for the occupant. <br>
-What does OSB do to the 'breath-ability' of the house?<br>-How far does your OSB travel? The 'baubiologie' approved brand from Scotland may be great on the British Isles, but how appropriate is it on mainland Europe? <br>
-I'm convinced that (beyond the 4 good points mentioned yesterday by Derek and ?), there's a special 'marriage' happening between the integration of the earth plaster and straw, which provides additional positive feed-back loops which our isolated scientific science approach have not yet proven. In other words; this is typically lost when useing OSB. (stays if the french dip is applied, but bales has to be mighty dry before installing to avoid fungi in the OSB).<br>
<br>So, with that out in the open: Please "Teach me Tiger"....????<br><br>Cheers,<br>Max Vittrup Jensen<br>PS: On my first construction jobs back in '91 in USA OSB was the hot 'green' approach to stick-frame housing. I've were an advocate of it for years and do have some in storage. I'm simply pointing out that there's reasons to be concerned.<br>