Yes I just read this. My room is at least 11 degrees lower than outside today 35 v 24. I do a few things: first at 5am I get a cross air circulation but today it was useless, outside was 21 and it barely made any difference to the internal temperature
I put all the vents on in each bathroom, that helps to draw warm air out
I close all the shutters on the side that gets the sun first. My reflecting aluminium shade nets have been hanging on rods for a few days. I can only do those on the side which is sunny first thing (S/SE). The rods are outside the glass, hanging on command hooks and the nets are tied to the rods with string and held in place with electrical insulation tape. I bought the nets from temu, it is too late for this year but they are worth having in and you need a dowel or rod to span across the glass
By 12 I can start to open the inside shutters and have already started to raise the perfect fit blinds on the french doors. I get light through but the sun is reflected away. I have two large square sun umbrellas, both open by 6.30 am and they prevent the sun from heating a lot of my patio
There is a thread somewhere, maybe in house and home, I detailed every process of my experiments
I have dual aspect in each room, the west side faces a light coloured building and the strong sunlight is reflected off that building so I start to close those shutters late morning, then later in the day, the sun has swung around to that side and I need to keep those shutters closed until evening but I have light in my rooms via the see-through aluminium mesh shading fabric on the opposite side
Yes it was a faff when I was trialing stuff but by heck it works and I don`t even need a fan
The aluminium mesh is easy to handle I just lift the rod off and roll it up, tie with string and I can store in my garage until the next severe heat wave. I used 2 x2m mesh over the big windows, 2 of them and a 2x1 over the very sunny s facing side window, I leave that one up all the time