An update on the antics here... With the bulk of the insulation in place, it was time to contemplate lining the Hab Box. Thermal bridging has been on my mind since the start. Much as I'd like to think there will be none, in reality a hab box that has any form of steel or aluminium in it as framework or in the form of door and window frames is going to have thermal bridges. However, I can at least lessen it where I can. The bulk of our hab box frame is made from 50 x 50 RHS with an alli skin on the outside, and a 3mm ply skin on the inside. I have decided to thicken the wall thickness by 10mm with ply battens...
These ply battons give me 10mm of space for another layer of insulation. They also give me space to run the wires for the downlights without having to drill holes in the original framework. The ceiling, and walls will all have this extra layer on them. With all the battens in place, I could then run the lighting wires in and down light mount plates, and then cut and glue the extra layer in...
With the bulk of the ceiling insulation and battens in it was time to start cutting and fitting the interior ceiling sheets. At over $60 a sheet, I don't want to get these wrong!
I'd already made some cross support bars with the shape of the roof, so set too with the first sheet. With all the stands and clamps removed this morning, the sheet stayed in place! Happy days! Today we start at the front and work back!