A comment to a recent post of mine about the heat in my south-facing bedroom when temperatures rose resulted in my buying some emergency foil blankets. Actually, I thought I was purchasing one but five came through the door.
As tends to happen, this prompted the weather to turn cooler. Until Monday gone, when it seemed warm and sunny enough to do a test run.
Whether or not they keep the heat out is hard to say, as my daughter and a friend of hers decided to do some baking in our stove/heater that afternoon. The upshot was the discovery that the emergency blanket is wonderful insulation for keeping heat in. In short, I thought I was having a hot flush from hell.
The blanket could have come down at this point but ever curious I kept it up to see what happened next. The temperatures came down both inside and out, so regarding my estival physical comfort the jury must remain out.
On the other hand, the blanket also blocks out a certain degree of light. Coupled with curtains at night this in turn means my room is truly dark, which means I have slept very well for the past few nights, notwithstanding the faint rustling caused by the breeze coming through the trickle vents. On these grounds alone, it is therefore decided the impromptu blackout blind shall remain.