Search for: Viewing topic 1 (of 1 total) Topic Voices Posts Last Post What is the proper direction for rainwater to drain from a flat roof into a gutter or downspout? Should it be parallel, perpendicular, or at any angle between the eaves? Started by: Samson Adebowale in: Build It Right Q&A Corner 0 1 1 year, 3 months ago Samson Adebowale Viewing topic 1 (of 1 total)