Black Box

Lots of progress in the last week. The walls are now complete; the last panel was a very tight fit.

Interior walls

Meanwhile, the interior walls are being built: first assembled on the floor, then raised to vertical.

And the roof trusses have arrived.

Airtight membrane

The airtight membrane on the outside gets taped to the waterproof layer that went underneath the base plate. The membrane continues underneath the ring beam to be added on top of the walls, and then taped to the membrane underneath the roof, making the whole house as airtight as possible. It also protects against possible rain.

The membrane goes right over the windows; those areas will be cut out later when installing the windows.

This transforms the nice straw building into a black box.

Adding plywood strips makes it look better again. The plywood strips help secure the membrane, and prepare for the wood fiber boards that will be added on the outside.