4/8/2009 Earth Sheltered Dwellings Considerations Orientation to sun and wind to Topography Soil type Groundwater level 2

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Geoffrey Owen
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1 Alternative Housing Why build an alternative house? Energy savings Building cost savings New innovative design Alternative Types Earth Sheltered Dwellings Geodesic Domes Insulating Concrete Forms (ICF) Structurally Insulated Panels (SIP) 1

2 Earth Sheltered Dwellings Considerations Orientation to sun and wind Topography Soil type Groundwater level 2

3 Domes Structural Superiority Unobstructed floor space Low cost Reduced energy needs Picture from Metal Home Digest Nov/Dec 2007 Pictures are courtesy of Architecture Residential Drawing and Design Pictures are courtesy of Architecture Residential Drawing and Design 3

Insulating Concrete Forms Foundations House walls Benefits: High

infiltration Structurally sound (wind, seismic) Fast and

act=projectfiles Insulating Concrete Forms Costs run up to 10% more

50 per ft 2 ) with skilled labor and special equipment being factors

4 Insulating Concrete Forms Foundations House walls Benefits: High R-values (R-17 to R-26) Reduced air infiltration Reduced noise infiltration Structurally sound (wind, seismic) Fast and straightforward assembly More information: Insulating Concrete Forms Costs run up to 10% more than frame construction ($1.75 to $3.50 per ft 2 ) with skilled labor and special equipment being factors Design covered by a prescriptive code in most ICFA sells Prescriptive Method for Insulating Concrete Forms in Residential Construction (2nd Edition) 4

5 Rated for high wind, snow and seismic loads Source: Inventory/walls/Insulating-Concrete-Forms 5

6 Structurally Insulated Panels New churches Offices Homes 6

7 Triad Farms Stable Barn Riegelsville, PA Henning Construction 36 x 84 Post Frame Ron & Karen Joslin home Fordyce, NE Joslin Construction Solid Core panels: R-40 roof & R-26 walls Panelized Building System: Structural Adhesive Insulating foam core Structural skin Structural Adhesive Rigid Foam Insulation OSB Structural Skin 7

8 WHAT ARE SIPS? SIPs ARE A COMPOSITE STRESSED-SKIN SKIN PANEL WITH AN INSULATING CORE OF RIGID FOAM USUALLY EPS OR POLYURETHANE AND WORKING SKINS MOST COMMONLY OF 7/16 THICK ORIENTED STRAND BOARD (OSB). THEY ARE ALSO AVAILBLE WITH METAL SKINS...AND CEMENTITIOUS OR COMPOSITE SKINS 8

EXTRUDED POLYSTYRENE (XPS) 3. POLYURETHANE 4.

structure 3. Shipped to jobsite ready to install 4.

9 RIGID FOAM CORE MATERIALS MAY BE: 1. EXPANDED POLYSTYRENE (EPS) 2. EXTRUDED POLYSTYRENE (XPS) 3. POLYURETHANE 4. POLYISOCYANURATE Manufacturing Process 1. Design AutoCAD Shop Drawings 2. Fabrication CNC Hand Cutting Cut to specific design of structure 3. Shipped to jobsite ready to install 4. Complete packages available with additional components installed CAD/CAM SIP Software converts SIP CAD drawings into Machine instructional code. 9

10 1. Starts with any CAD drawing 2. SIP Software converts elevations into shop drawings and material lists 2.1. OR the Project Architect or Engineer create their own SIP drawings 10

11 or three dimensional drawing SIP APPLICATIONS WALLS -- ROOFS -- FLOORS Thicknesses: walls 4 6 roofs and 14 floors Custom Sizes 4 x8, 8 x24, and 9 x24 Custom 11

SIP R - VALUES EPS Core Thickness 3 5/8 5 5/8 7 3/8 9 3/8 12 3/8 R-Value @ 75 F 15.34 23.04 29.77 40.36 49.02 @ 40 F 16.57 26.26 32.28 43.80 53.

21 (Calculated R-Values) Calculated R-Values are for a generic Structural Insulated Panel, and include 2 sheets of 7/16 OSB at.69 per side.

Mean temperatures are established for differing regions, and occupancies.

12 SIP R - VALUES EPS Core Thickness 3 5/8 5 5/8 7 3/8 9 3/8 12 3/8 75 F F F (Calculated R-Values) Calculated R-Values are for a generic Structural Insulated Panel, and include 2 sheets of 7/16 OSB at.69 per side. Type I, Expanded Polystyrene Foam that meets ASTM C 578, calculated per ASHRAE published values at 3.85 per inch at 75 F, 4.19 at 40 F and 4.35 at 25. Mean temperatures are established for differing regions, and occupancies. Please consult your local jurisdiction for interpretation of Regional or National Model Energy Code Requirements. Applicability Limits Wall Panels Only 4-1/2 and 5-1/2 Thick Panels (Nominal) 40 Foot x 60 Foot Building Size Up to Two Stories Above a Basement 10 Feet Max. Wall Height 130 mph Wind Speed 70 psf Ground Snow Load Seismic Design Category A, B, and C 12

Minimum thickness for SIP wall supporting light-frame roof only Minimum thickness for SIP wall supporting light-frame one story and roof Wind Speed Building Width

Exp. Load Wall Height (ft) Wall Height (ft) Wall Height (ft) Wall Height (ft) Wall Height (ft) A/B C (psf) 8 9 10 8 9 10 8 9 10 8 9 10 8 9 10 20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 30 4.

5 6.5 6.5 6.5 20 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 30 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 100 85 50 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 4.5 6.5 6.5 70 45 4.

5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 4.5 6.5 6.5 110 100 50 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6.5 4.5 6.5 6.5 6.5 6.5 N/A 70 4.5 4.5 4.5 4.5 4.5 6.5 6.5 6.5 N/A 6.

5 4.5 6.5 4.5 6.5 N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A 20 4.5 4.5 6.5 4.5 4.5 6.5 4.5 6.5 N/A 4.5 6.5 N/A 6.5 N/A N/A 30 4.5 4.5 6.5 4.5 4.5 N/A 4.5 6.5 N/A 6.5 N/A N/A 6.

5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 30 6.

13 Minimum thickness for SIP wall supporting light-frame roof only Minimum thickness for SIP wall supporting light-frame one story and roof Wind Speed Building Width (ft) (3-sec. gust) Snow Exp. Exp. Load Wall Height (ft) Wall Height (ft) Wall Height (ft) Wall Height (ft) Wall Height (ft) A/B C (psf) N/A N/A N/A N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.5 N/A N/A N/A N/A N/A N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.5 N/A N/A N/A N/A 6.5 N/A N/A 6.5 N/A N/A N/A N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.5 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 70 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Current Industry Assembly Standards 13

14 Current Industry Assembly Standards STRUCTURAL SPLINES MAY BE SINGLE OR DOUBLE OR SINGLE MEMBERS 3 ½ WIDE, SUCH AS PARALLAMS OR OTHER COMPOSITES. Current Industry Assembly Standards Current Industry Assembly Standards 14

15 Current Industry Assembly Standards Roof To Wall 15

Product Information Bulletin

Product Information Bulletin BULLETIN NO. ISSUED: REPLACES: 207 July 18, 2011 December 31, 2007 NBC 2005 and 2010, Part 9 - Prescriptive Requirements for ICF Construction Page 2 of 5 The National Building