Not sure how well this photo show, but it’s one of a few cracks I repaired in my customer’s bedroom using Easifill. Dragged crack out well using shave hook for a nice ‘v’, dusted off properly then applied Easifill mixed fairly stiff. It’s now cracked again after painting.
Cause? Well, this is an empty house customer has just bought, no carpets etc., and boiler broke last week so drop in temp could be responsible. But then that’s not really satisfactory, because if he went on holiday, for example, it might happen again.
So I’m wondering, would it be daft to repeat the same repair and expect a different result, or should I perhaps use two-pack as it’s marketed as flexible? It is an outside wall.