I just had my roof redone, about 1000 sqft worth. It hasn't even been two weeks yet, and I notice a large portion of it is starting to crack all over. Its the painted reflective coat. What can be causing this? It almost looks like the portion that is cracking is a totally different paint material, so I've ruled out temperature expansion/contraction because it would have been the entire roof.
The materials used were:
Gaf Gafglas 75# Base Sheet (Asphalt-Coated Glass Mat)
Gaf Ruberoid Smooth Torch
Apoc 211 Liquid Silver-NF Non-Fibered Aluminum Roof Coating