Presentation on theme: "New & Existing Metal Buildings. Problem: Radiation is the biggest enemy of metal structures and is the primary source of unwanted heat gain and loss."— Presentation transcript:
New & Existing Metal Buildings
Problem: Radiation is the biggest enemy of metal structures and is the primary source of unwanted heat gain and loss. - the Summer sun strikes the roof and walls of a metal building, causing the metal along with standard mass insulation to become saturated with heat. - this heat then radiates into the interior of the building lowering comfort and productivity. - during Winter months, standard insulation and the metal skin absorb radiant energy from the interior of the building and re-radiates out of the building.
Staple Tab Version Tape Tab Version Available Facing Colors: Black, White & Reflective Solution:
What is Reflective Insulation? Insulation that forms enclosed air spaces with layers of paper or plastic, and Aluminum Aluminum foil has the properties of High reflectivity and Low emissivity and blocks up to 97% of radiant energy, so heat transfer through radiation is significantly reduced. Reflectivity (or Reflectance) refers to the fraction of incoming radiant energy that is reflected from the surface. Emissivity (or Emittance) refers to the ability of a material’s surface to emit radiant energy. All materials have an emittance that ranges from zero to one. The lower the emittance of a material, the lower the heat (infra-red radiant energy) radiated from its surface.
When is it used? New Metal Buildings New Metal Buildings Draped Over Purlins Application
Draped Over Purlins Reflective/White Facing/R-6.5Reflective/Reflective Facing/R-10* R-Values generated by a 1” reflective air space, and reflective surface facing an exposed lower air film (reflective/reflective only). * The Low Emittance High Reflective surface facing an Air Film adds R-value to the insulation system: Ceilings: R- 4.6 Walls: R- 1.7 Reference: Surface Conductances and Resistances for Air, ASHRAE Fundamentals Handbook.
RetroShield System® includes : Standard Width: 66” for 4’ or 5’ on-center purlins Other Widths Available Kit: One Roll of RBI Shield Reflective Insulation, 1 Box of 120 Clips and matching locking washers.
When is it used? New or Existing Metal Buildings New or Existing Metal Buildings Under Purlins Application Color-coded washers to match the reflective insulation facing
R-Values generated by 6” to 8” reflective air space, and foil surface facing an exposed lower air film (reflective/reflective only) Reflective/Reflective Facing R-16 (under purlins) Reflective/White Facing R-12 (under purlins)
Reflective/Black Facing R-12 (under purlins) R-Values generated by 6” to 8” reflective air space
Hybrid Insulation System New or Existing Metal Buildings New or Existing Metal Buildings Under Purlins Application Add unfaced mass insulation to create Hybrid System. Thermal Break & Vapor Retarder ASHRAE 90.1 (2004) Metal Buildings/Non-Residential ZoneRoofs Walls UmaxRminUmaxRmin A hybrid system consisting of Unfaced Mass Insulation and Reflective Insulation can produce increased R (reduced U) without serious design changes.
Back-filled with unfaced mass insulation R-Value would be the R-Value of Mass Insulation (R- 19), plus 5/16” thickness of RBI Shield™ and the lower air film of reflective/reflective RBI Shield (R-5.6). R-24.6 Increased R-Value s
No Glue or Support Bands Simple as 1,2,3! Rolling Scaffolding or Lift Basic Tools…all that’s needed! 1.Snap on the clip 2.Impale the Insulation 3.Apply the Lock Washer
Day 1 – Installing Stick Pins with Glue Day 2 – Installing Batt Insulation, after glue dries Minimum Cost for sending Crew back after glue dries = $ (gas, maintenance, depreciation, etc.) Installing Batt Insulation with Stick Pins Day 1 – Attach clips to bottom of Purlins, install RBI Shield Reflective Insulation with tape tab seam and fasten with locking washers…Simple as 1,2,3! Installing RetroShield System
Angle Clips Mounted to Slab Beam or Purlin Clips on Girts Metal Building Wall Application
Wall Application Reflective/White Facing R-6
With the RetroShield® System Smaller purlin cavities Electrical Conduit Obstructions are easy to manage… Skylights
Features and Benefits Finished Appearance Improves lighting (Reflective/White Facing) R-value up to R-16 (Reflective/Reflective Facing/under purlins) Can be back-filled with mass insulation New Construction or Retrofit Easy to estimate and install No Glue or Support Wires Saves Labor