collection of things which and up being quite sort of negative impacts on resources to miss muffet helen thomasteam experimented for almost 20 years cutting interlocking cork blocks until they found the best structural solution the $1268.00 blocks are slotted together with mortar. alone holds them together and no additional insulation is needed. it does have a smell all of its own a bit like inside a cigar box. 44 square metres of comfort and security modern in a cave you could once rather like in an ancient mayan. temple. has long been news and building facades. this holiday home was built in 2007 in northern portugal the habitats of the cork oak. has left its mark on this house. course and chilling with the environment moves in changes color that's exactly what vasco likes about it. as it's rained. and it's wet here and this one is behaving just as we expected. this shark one brown color it's the color of the reaction to the. wetness of the atmosphere it's very central material it follows the seasons it changes through and through and through the year. a tribute to portugal's national pride.