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Greenbuild 2012 v2
This document introduces Nuform Building Technologies' CONFORM insulated concrete form system. CONFORM allows builders to construct durable, energy efficient concrete walls that are corrosion resistant and require minimal maintenance. The precut forms interconnect on site for quick assembly. CONFORM walls can be solid concrete or insulated. Insulated walls provide better thermal efficiency and moisture protection than traditional construction. Various commercial and residential projects around the world have used CONFORM to withstand hurricanes and tropical conditions.
Greenbuild 2012 v2
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- 2. ® ® Get to KnowUs Again ® ® NEW NAMES. SAME GREAT PRODUCTS.
- 3. ® Our Commitment to OurEnvironment
- 5. LEED ® NC Points CONFORM® formwork cancontribute to the these LEED® Credits
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- 7. ® What is CONFORM? PatentedConcrete Forming Technology Components interconnect together to create a finished concrete wall CONFORM is cost competitive with quality CMU construction
- 8. Concrete Service Channel Insulation Polymer Shell ReinforcingBar CF8i (200mm-8” Wall-Insulated)
- 9. ® Wall Types CF4 100 mm4” wall CF6 CF8 150 mm 6” wall 200 mm 8” wall CF8i 200 mm 8” insulated wall
- 10. ® CONFORM is the ONLYsolution that is: Corrosion Resistant Durable Easy to Clean Requires Minimal Maintenance Constructs Quickly
- 11. Constructs Quickly Every Building iscustom made in our factory All components are pre-cut and labeled for easy on site assembly Less skilled labor required on site Cleaner overall work site
- 12. Types of ConcreteWall Panels Solid Concrete Wall Panels = Question: Did you know that 7” of load- bearing structural concrete has approximately the same R-Value as a single panel of glass…R-1.4 ! Insulation IS Important !
- 13. Types of ConcreteWall Panels Insulating Options? Insulation Position is critical: Interior: Insulation separates you from the mass effect Exterior: Outside of the bulk mass of the wall system. CF8i 200 mm 8” insulated wall
- 14. Effective R-Value Thermal Efficiencyin a Wall Panel Concrete has the to store energy and dampen the effect of temperature change on heating and cooling systems is know as the “Thermal Mass Effect.” Due to the mass effect of insulated concrete, the performance R-value of the high performance wall system can be two to three times greater than that of the material R-value, resulting in energy cost savings up to or exceeding 50%. High Mass Building Conventional Insulated Building
- 15. Moisture Vapor Drive Insulationwill enhance the efficiency of the entire wall system. Cold Inside Air PVC Encompassed Insulation and Concrete form Outside-In Vapor Drive Exfiltration
- 16. Insulated Concrete Sandwich Walls MoistureVapor Drive What Is Vapor Diffusion? The Process by which water vapor migrates through a wall system and it’s components such as gypsum, concrete, insulation and paint. Each components of the wall system has a perm rating The International Building Code says that a material with a perm rating of 1.0 or less is a vapor retarder. Examples of the average perm rating for different wall components… Gypsum 12 - 50 perms Plastic Sheet Barriers (2-10 mil) .16 – .03 perms Rigid Insulation 5.8 – .03 perms Concrete 3.2 perms PVC 0 perms
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- 29. ® Ocean Point Villas-GrandCayman Islands Survives Hurricane Michelle (2001) with Sustained Wind Speeds of 143 mph
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- 32. ® St. Peters School-St.Peters Saint Maarten-Built 1998
- 33. ® Airport Control Tower SaintMaarten-Built 2003
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- 36. ® Ocean View Terrace CustomResidence Built 2007
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- 39. ® For additional information visitour website www.nuformdirect.com or contact us toll free 1.877.747.WALL(9255) NUFORM, CONFORM, RELINE, RENU and the N logo are Registered trademarks of Nuform Building Technologies Inc.
Editor's Notes
- #13 Did you know that that solid piece of concrete, while it has a great heat capacity, or ability to store heat or cooling loads, has very little insulating ability. In actuality, a 7” thick piece of concrete has the same R-value as a single pane of glass, or R-1.4. However, if you insulate the mass of concrete effectively, preventing the heating or cooling loads from escaping the mass, the wall can have a tremendous R-Value.
- #14 This behavior is demonstrated in the 2003 IECC. The International Code has established terms for the location of insulation. They call out: Interior: Which is insulation on the inside of the bulk of mass. This is shown in the photo to the left where insulation is installed on the interior side of the tilt-up wall panel Exterior: Which is where the insulation is installed to the exterior of the mass of concrete. This is demonstrated in the center image, and would be an EIFS type application. This defeats the benefit of having the durability and architectural features of precast concrete. Integral: Integral is a panel where the insulation is sandwiched between two substantial amounts of mass.
- #15 A Performance Study. What is that? Well, earlier when we talked about the benefit the code gives us for using a high mass wall with integral insluation, it was because we take advantage of the Thermal Mass of Concrete. This is the behavior of the interior layer of concrete acting as a heat sink and slowly releasing energy as opposed to the peaks and valleys present in a more traditional building envelope (Steel stud, wood frame, etc).
- #16 The second step is a Envelope Performance Study, also dictated by ASHRAE 90.1. This particular study gives you the R-Value as a result of effectively utilizing the Thermal Mass of Concrete. It is dependent upon the location, occupancy type, wall panel area, and configuration. For this particular project, again a school in Atlanta, GA, the 4/2/4 Thermomass panel has an Effective R-Value of R-25.07. This is the R-Value the mechanical engineer should take into account when sizing his components. Historically, this has resulted in a Tonnage reduction of up to 37%.
- #19 There is no question that Mold and Mildew is a significant concern. Whether it be insurance rates going up or health concerns, the issue is costly and serious.
- #20 The reason this is a problem is because buildings are being constructed more tightly than ever before and are full of ingredients to spawn mold growth. Overall, there are 5 things requrired for mold to grow. Spores settling on the surface Oxygen Right Temperature (Ambient) Food Source (cellulose) Water Water is the one that is controllable because the first four are present in almost any building. THE MAIN THING TO GET ACROSS HERE IS WE HAVE TAKEN OUT THE CELLULOSE IN THE WALL ASSEMBLY AND, OTHER THAN A PIPE BREAKING, ARE DESIGNING THE WALL TO PREVENT WATER VAPOR FROM DIFFUSING AND GETTING THE WALL WET.
- #21 In general sandwich panels, or any wall assembly for that matter is subjected to a significant difference in interior/exterior temperature and humidity. In this example, and one that we can all appreciate, on a hot day it will get warm outside and the air will be wet. When it is colder and dryer inside, there will be a significant outside-in vapor drive. The individual materials are responsible for controlling the vapor drive. Overall, insulation is critical to stopping that drive. Concrete cant stop it and paints cant either.
- #22 MAIN POINT: EDGE TO EDGE INSLUATION IS CRITICAL AND THERMOMASS IS THE ONLY SYSTEM TO GIVE YOU NON-CONDUCTIVE CONNECTORS AND A CONTINUOS LAYER OF VAPOR RETARDING INSUALTION.
- #23 According to the International Building Code, a material must have a perm rating of 1.0 or less. We touched on this when discussing the foams earlier. XPS has a perm rating of 0.55, ISO has a perm rating of 0.03. EPS has a perm rating of 3. In comparison, gypsum, concrete, and plastic sheets span the spectrum of perm ratings.
- #25 I like to show this slide, as Im sure many of the architects in the audience are familiar with it. The steel studs represent thermal short circuits in the wall assembly. As a result of the thermal short circuits, the fiber-glass insulation’s R-Value is not achieved. The same theory is in play for Concrete Wall Assemblies. If the insulation layer is interrupted, the material R-Value will not be achieved, but additionally, there will be condensation issues as the vapor retarder or barrier is broken.