1. 1 Foundation Moisture Control and Energy Performance

2. Crawl Space Wall Insulation

3. Interior Foundation Wall Insulation

4. Steel Wall Framing Equivalent R-values

5. The Builders’ Compliance Options Mass Wall Allowances – Log walls – Concrete – Other > 6 Btu/ft2-°F 5

6. Builders’ Compliance: Mass Walls 6

7. Wall Framing & Insulation 7

8. Ladder Framing

9. Header Insulation

10. Framing Details 10

11. Attic Kneewalls Step 1: Apply interior pressure boundary Check rating on foam products ASTM E-84, FM 4880, or UL 1040 Step 2: Continuous Insulation 11

12. Fireplace Infiltration Control Air leakage is significant around fire places – Air sealing a multi- stepped approach 12

13. Fireplace Infiltration Control Step one – install infiltration control after fireplace is framed Step two – seal infiltration control to framing Step three – install infiltration control to top of insert box Step four - insulate 13

14. Poor Insulation Installation 14

15. Wall Insulation Options

16. Blown Wall Insulation  Continuous coverage  Higher density insulation, such as cellulose and rock wool, reduce air leaks  Requires a skilled contractor  Damp insulation must dry before sheetrock installation 16

17. Foam Sheathing/ Window Flashing Caulked seams in foam sheathing

18. The Builders’ Compliance Options Moisture Protection in Wall Systems IRC Section R703.1: – “weather-resistant exterior wall envelope” – “prevent accumulation of water within the wall assembly” – “provide weather resistant barrier behind the exterior veneer” Cheap Insurance 18

19. Poor Insulation at Eave Cold corners contribute to condensation and mold growth. Possibility of ice dam formations. No room

20. Raised Heel Truss Insulate full height over exterior wall

21. Other Insulation Options Insulated Concrete Forms Autoclave Aerated Concrete Structural Insulated Panels

22. Airtight Insulation Contact Fixture (IC/AT) 22

23. Attic Insulation and Details

24. Attic Insulation Rulers 24

25. The Insulated Hatch

26. Foam (Icynene) Under-Roof 26

27. The attic shown has 2,000 square feet with R-30 insulation, but 3% gaps in the insulation and 50% low spots (R-19).What is average R-value? Average R-value of Attic 27

28. Average R-value Homework A 2,000-square foot floor with R-19 insulation, but 5% gaps in the insulation has what average R-value? An attic has 3,000 square feet with R-30 insulation, but 5% gaps in the insulation and 30% low spots (R-19). What is the average R-value? 28