my greenhouse said it was 45 and a bit this was about 2 pm,the door had been open all night,the side loovers were fully open,and i had the window open as well,so tomorrow i am going to paint it white on the side it gets the blistering sun from the most,done it before and was good,as was a green netting as shade,have never known it so hot in there,the thermometer is the little square one from wilko's.