Foundation Edge Detail - Foam Insulation Visible

Foundation Edge with Foam

Photo Details

  • Date: October 20, 2025
  • Time: 6:49 PM EDT (evening/dusk)
  • Weather: Clear skies, 55°F. Good evening lighting conditions.
  • Phase: Foundation forming with frost protection installation
  • Location: 309 E. 7th St., Clare, MI
  • View: Close-up of foundation edge showing foam insulation

Description

This detailed evening shot provides a close view of the foundation edge construction, clearly showing the foam insulation installed along the perimeter for frost protection.

Visible Elements

  • Foam Insulation: White/light colored rigid foam board visible along the foundation edge
    • Appears to be installed vertically in the perimeter trench
    • Likely the 9” foam frost protection specified in contract
    • Positioned against the exterior of where the rat wall will be poured
  • Perimeter Trench: Deep excavation around foundation perimeter
    • Dark soil walls visible
    • Clean vertical cuts
  • Interior Foundation Bed: Leveled sand/gravel surface ready for concrete
  • Wooden Forms: Perimeter forms with stakes for concrete containment
  • Site Context:
    • White lattice fence in background
    • Existing white house visible
    • Dusk/evening lighting (lower light levels)
    • Fall foliage and landscaping visible

Technical Details

The foam insulation installation is critical for:

  • Frost protection: Prevents frost from penetrating beneath the foundation
  • Energy efficiency: Reduces heat loss through the foundation
  • In-floor heating system: Helps contain heat from the hydronic heating system

This matches the contract specification: “8’ W x 24’ deep concrete ratwall w/ 9” Foam frost protection”

Construction Sequence

At this stage, the construction sequence shows:

  1. ✅ Site excavation completed
  2. ✅ Perimeter trench dug to 24” depth
  3. ✅ Interior base leveled and compacted
  4. ✅ Foam insulation installed in perimeter trench
  5. ⏳ Next: Concrete pour for rat wall and slab