How to Slope a Flat Roof for Drainage
How to Slope a Flat Roof for Drainage TL;DR — Key Points: No flat roof should be truly flat — minimum 1/4″ per foot (1:48) slope is required by most building codes Four main methods exist — tapered insulation, sistered rafters, tapered crickets, and self-leveling overlays each suit different situations Drain placement drives slope design […]
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