This document presents an FPSF design procedure for slab-on-grade, stem wall foundations. Average indoor monthly temperature range (Table 1). Guidance for design of FPSFs in semi-heated buildings (41 oF-63oF) is available in ASCE 32-01. Design Values for FPSF Insulation Materials1. Details of underfloor and floor edge insulation and cavity insulation, where relevant If information is unavailable request its provision. Does the ground bearing floor slab align with the project summary sheet and foundation design? Yes / No Continues on reverse Ground bearing floor slabs General Is the proposed slab a minimum of 100mm thick.