ventridge. ridge tile machine, metal roof ridge cap roll forming machine, ridge cap making machine. the roof, ridge cap and open gables are now finished the ridge cap and open gables (in the summer time) allows air in and out of the coop for ventilation. ridge capping. starting ridge cap laying out foam strips. dark bronze color with msr 100 16\” panels were used in this project you can see a close up view of a valley, ridge \u0026 hip cap, snow guards, eave trim, . metal roof over sheathing ridge cap.