Download presentation
Presentation is loading. Please wait.
Published byMarianna Hicks Modified over 9 years ago
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
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.