Roof flashing / weatherproofing (Arlesey - SG15)

Roof flashing / weatherproofing sheet
A substantial bit of roofing material for someone who enjoys ladders, sealant, and the deeply satisfying joy of stopping rain from entering places it absolutely shouldn’t. Not sure in Brexit inches but roughly 40cm square in European metrics.

Ideal for a handy person, a roof repair mission, or someone who likes home improvements with a side of mild suffering.