Today we put up two extra layers of plastic sheeting on the underside of the corrugated roof. We wanted to reduce the heat losses of such a large “window”! being only a temporary construction, we use standard builders plastic sheeting which is not absolutely clear and only costs a few pence per metre.
~images
Putting up two more layers will hopefully create some additional insulation effect especially during the Winter months. It does cut down on the light level (probably by a third) but it is such a large area (10m x 2m), it is still very bright.
Now we can install the return-path air ducting to remove the old hot air from the corridor and allow fresh cooler air in the bedrooms and lounge.