I’m installing extruded polystyrene rigid foam board over my exterior sheathing. I got a little behind schedule and now the temps have dropped to the 30s (Fahrenheit). Do I need to allow for the foam to expand in warmer weather? How big of gaps should I leave (if any) on the seams and the edges? I don’t want it to distort my siding when we get back into the 90s next summer.