Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.
-
Upload
priscila-clemens -
Category
Documents
-
view
212 -
download
0
Transcript of Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.
![Page 1: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/1.jpg)
Presentation on
Insulated Concrete Masonryand
USVI Pilot Project
January 25, 2012
![Page 2: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/2.jpg)
Presentation Outline
Wall Insulating Basics• Insulating Walls - Why and How Much is Enough?
Staqable Symmetry Insulated Concrete Masonry• Comparisons with Conventional Concrete Masonry Block• Testing• Manufacturing• Addresses Island Construction Challenges
USVI Pilot Project
![Page 3: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/3.jpg)
Energy Losses
![Page 4: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/4.jpg)
Balancing Economics and Energy Saving Design(Diminishing Returns on Insulation)
![Page 5: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/5.jpg)
Insulation PropertiesConventional Block vs. Staqable Symmetry Insulated Block
Conventional Un-Insulated Block
Inside COLD air escapes through webs (thermal breaks)
Outside HEAT penetrates wall through webs (thermal breaks)
Staqable Symmetry Insulated Block
NO THERMAL BREAKS + EPS insulation provides barrier to:
Keep Outside Heat Out
Keep Inside Cold In
![Page 6: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/6.jpg)
Construction Materials R/Thickness hr·ft2·°F/Btu Concrete Block 4" 0.8Concrete Block 8" 1.11Concrete Block 12" 1.28
Standard Un-Insulated Concrete Block R Values
Base on the handbook values, the thermal conductivity value for EPS foam insulation is Rins = 3.87/0.273 =14.17 hr•ft2°• F/BTU
Staqable Symmetry Insulated Concrete Block Calculated R Value
Base on the handbook values, the thermal conductivity value for concrete is: Rconc = (11.5-3.87/5.26 =1.45 hr•ft2•° F/BTU
where: thickness of the CMU is 11.5 inchesaverage thickness of the insulation insert is 3.87 inches
thermal conductivity of concrete is 5.26 Btu•in/ hr•ft2•° F thermal conductivity of EPS foam is .273 Btu•in/ hr•ft2•° F
Rtotal = Rins + Rconc = 14.17 + 1.45 = 15.62 hr•ft2•° F/BTU
R Value Comparison Conventional Block vs. Staqable Symmetry Insulated Block
![Page 7: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/7.jpg)
Summary of Testing Results
• Oakridge National Laboratory – Staqable Symmetry CMU has a great potential as an energy efficient masonry system…, was the highest among all ORN BTC hot box results for masonry walls
• National Concrete Masonry Association of America – Based on observations of three flexural tests, walls exhibit similar behavior as expected from conventional reinforced concrete masonry walls (ASTM C90 Test Average +/-3100 Psi, required 1900 psi)
• National Association of Home Builders – ASTM E331 Test (Water Infiltration) , no water migrated through EPS foam
• Additional Hot Box Tests to be performed, anticipated R-Value 14-15
![Page 8: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/8.jpg)
Staqable Symmetry Insulated Block Manufacturing Process
![Page 9: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/9.jpg)
Island Building Challenges
Design Consideration How Insulated Block AddressesConsideration
Hot Humid Climate Contains EPS Insulation which Keeps Hot Out, Cold In and Prevents Water Infiltration
High Electricity Costs High R-Value Reduces Electricity Cost and allows AC to act as a Dehumidifier
Hurricanes and Tropical Storms Staqable Symmetry Exceeds Structural Requirements of Conventional Block and Provided Water Tightness
Local Labor Skills 81% of All Structures in the Islands are Built with Concrete Block – Local Trades are Accustomed to Working with Material
Shipping and Logistics Manufactured on Island and Block Machines can be Set up at Remote Locations
![Page 10: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/10.jpg)
USVI Pilot ProjectLocation and Rendering
![Page 11: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/11.jpg)
USVI Pilot ProjectExcavation and Foundations
![Page 12: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/12.jpg)
USVI Pilot ProjectStaqable Symmetry Insulated Block Installation
![Page 13: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/13.jpg)
USVI Pilot ProjectStaqable Symmetry Insulated Block Installation
![Page 14: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/14.jpg)
USVI Pilot ProjectEnergy Saving Features – Photovoltaics and Shading
Photovoltaic Panels to be installed on the low pitched concrete roof located above deck/walkway; note that this roof also was designed to provide shading for windows
Total Power to be generated - 4.5 KW
![Page 15: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/15.jpg)
Conventional Island Roof Framing for Un-insulated Roofs (Rafters with T&G)
Problem - Insulating over Conventional Island Roof Framing (Rafters with T&G)
Insulation
Hurricane Force Wind Uplift T&G Boards
USVI Pilot Project Roof Framing T&G Boards Installed over Rafters to Create Insulation Cavity
Rafters
Rafters
Plywood
Insulation
T&G Boards
Plywood
Solution – Insulation cavity created between rafters
USVI Pilot ProjectEnergy Saving Features –Roof Insulation
![Page 16: Presentation on Insulated Concrete Masonry and USVI Pilot Project January 25, 2012.](https://reader035.fdocuments.us/reader035/viewer/2022070306/55166393550346a2698b527e/html5/thumbnails/16.jpg)
High Performance Windows• Manufacturer – WinDoor Inc.• U-Value .27• SHGC .30• Visible Light Transmittance - .40
High Efficiency HVAC Units• Manufacturer - Mitsubishi Mini-Spilt Ductless Air Conditioners• 22 SEER• Ductless
High Efficiency Water Heaters• Tank less, Instant
Appliances• Energy Star Rated
USVI Pilot ProjectOther Energy Saving Features