House Section Drawing with Roof Design and Stair Section Detail

House section drawing presenting a detailed architectural sectional layout that illustrates the internal vertical structure of the residential building, along with the roof design configuration. The drawing includes front section views that show floor level alignment, wall height, roof structure, and internal room division across the building section. Structural references indicate the relationship between foundation walls, floor slabs, roof slab, and supporting structural elements. Section drawings help architects and engineers understand how different levels of the house connect vertically while maintaining structural balance and interior space organization.