Roof Structural Rain Gutters December 15, 2016May 3, 2017 Marty Salcedo collector, downspouts, gutters, scuppers, subsurface As a general rule, gutters are not required on a structure. Rain gutters and downspouts will be able to help… This content is for Yearly Subscription, Affiliate Membership Level (Code Required), and Gifted Membership members only.Log In Register