There are a lot of flash templates .
SPECIFICATION
Minimum radius of curvature for either a concave or convex curve is 300mm to inside of sheet. Minimum length of sheet at either end of a curve 100mm

Maximum length of straight sheet that can be curved at its centre(for ridge application) is approximately 12m.
To facilitate side lapping, it is recommended that sheets be curved to
a maximum a semi-circle.
S SHEET DECK

ACCESSORIES

Standard Toppical Crimp Curve Capping




Custom made Toppical Crimp Curve Capping
Other normal capping and flashing can be fabricated to requirements.