VR Plus Shield

Reflective Insulation - Multi-layer for Masonry Walls

VR Plus Insulation reflective insulation for walls and masonry

VR Plus Shield is a multi-layer reflective insulation for use on furred-out masonry walls.  This unique insulation has multiple layers that separate when installed to create three reflective air spaces, with R-values up to R-7.1 on 1.5” furring. VR Plus is available in both a standard, non-perforated version that functions as a vapor retarder, and Hi-Perm, a perforated version that allows vapor transmission depending on the design of the building envelope and climate zone requirements.  VR Plus is available with a staple tab for wood framing or with a tape tab for metal framing.

 

Gallery

  • VR Plus Shield Reflective Insulation
  • VR Plus Shield Reflective Insulation
  • VR Plus Shield Reflective Insulation
  • Masonry Wall Insulation - Installation is simple, quick and easy - tape tab for metal framing - VR Plus Shield by Fi-Foil
  • Masonry Wall Insulation - Installation is simple, quick and easy - tape tab for metal framing - VR Plus Shield by Fi-Foil
  • Masonry Wall Insulation - Installation is simple, quick and easy - tape tab for metal framing - VR Plus Shield by Fi-Foil
  • VR Plus Shield Reflective Insulation
  • VR Plus Shield Reflective Insulation
  • VR Plus Shield Reflective Insulation
  • Masonry Wall Insulation - Installation is simple, quick and easy - tape tab for metal framing - VR Plus Shield by Fi-Foil
  • Masonry Wall Insulation - Installation is simple, quick and easy - tape tab for metal framing - VR Plus Shield by Fi-Foil
  • Masonry Wall Insulation - Installation is simple, quick and easy - tape tab for metal framing - VR Plus Shield by Fi-Foil

Product Key Specs

Furring/Stud16” O.C24” O.C.
Width Expanded17.5” 25.5”
Diameter12” 10”
Lineal Footage375’250’
Coverage500 sq. ft.500 sq. ft
Weight29 lbs27 lbs

Product Test Data

Test Method Description Results
PerforatedNon-Perforated
ASTM E-96 Water Vapor Permeance2.60.18
ASTM E-84-94 Flammability Flame Spread Rating<25<25
Smoke Developed Rating<50<50
National Fire Protection Association RatingClass AClass A
R-Value for a 7/8” CavityN/AR-5.0
R-Value for a 1-1/2 to 1-5/8” CavityR-7.1R-7.0
ASTM D-3310 CorrosivityN/ANone
ASTM C-1244/Section 9 Adhesive Performance BleedingN/ANone
DelaminationN/ANone
PliabilityN/ANo signs of crack
ASTM C-1338 Mold & MildewN/APass
ASTM C-1371 Foil EmittanceN/A0.034
Meets International & Florida Building Codes
IAPMO ES Report #0291
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Need to Insulate Furred-Out Masonry Walls?

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800-448-3401

Compliance and Approvals: 

Meets ASTM C-1244 Standard Specification for Reflective Insulation
Meets Intermational & Florida Building & Energy Code Requirements
See IAPMO ES Report Number 0266.

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Project Information: Project Location: 18555 Collins Ave. Sunny Isles Beach, FL 33160Developer: Dezer Development, New... Read More

FAQ's

Probably not. The change from the standard version of AA2 Vapor Shield and VR Plus Shield to the Hi-Perm version only impacts the R-value by 0.1, so it has little, if any, effect in the overall load on the house. The overall point total should not change. However, the Florida Energy Code Form must indicate the correct R-value for inspection purposes.

As building envelopes are getting tighter, building scientists, energy centers and research organizations are suggesting that insulation products and facings used in hot humid climates have higher perm ratings for increased water vapor transmission. Fi-Foil's Hi-Perm versions are designed to meet or exceed these recommendations.

A water vapor retarder may or may not be part of the design depending on the climate zone and the other building components used in that particular section of the building envelope. If air containing water vapor is allowed to come in contact with a cold surface, then condensation will likely occur. Water vapor transmission can also occur even if the building envelope is air sealed or has an effective and properly installed air barrier.  Some insulation systems should include a water vapor retarder and some should allow vapor transmission.  Building codes and climate zones generally dictate the use of a water vapor retarder -- in short, the envelope is a system and the use should be carefully considered by the building designer.

 

Reflective insulation has little effect on heat transfer by conduction through the air between hot and cold surfaces.  Air with an R-per-inch of 5.6 is an excellent insulator when radiation and convection are controlled.  The installation of reflective insulation in an enclosed space reduces thermal radiation to near zero.  When the reflective insulation is installed to subdivide an air-filled region then convection is also reduced.

Yes. The ASHRAE Handbook values are a subset of data from the National Bureau of Standards (NBS).

Reflective insulation is one or more low emittance surfaces installed in an enclosed air space. The more layers within the air space, the better the performance. Reflective insulation in a wall system can be compared to a double or triple pane window with low-e surfaces. Triple pane windows with low e surfaces perform better than a triple pane window without low e surfaces because of the reduction of radiation (low emittance) across the air spaces.  

Air inherently has an R-per-inch value of 5.6, and is an excellent insulator when radiation and convection are controlled. The ASHRAE Handbook has tables with values for various enclosed air spaces (0.5”, 0.75”, 1.5”, 3.5”, etc.) with high emittance surfaces (0.82 for common building materials) and values for air spaces with low emittance surfaces facing the enclosed air space (0.05 for low emittance materials like aluminum).  Simply put, adding a low e material makes the enclosed air space perform better. A multilayer reflective insulation system in a wall cavity improves this system by further reducing radiant heat transfer and adding additional “panes”, a two layer reflective insulation could be compared to a double paned window; a three layer to a triple pane window, and so on..  

The installation of reflective insulation in an enclosed space reduces thermal radiation to near zero. When the reflective insulation is installed to subdivide an air-filled region then heat transfer by convection is also reduced. Fi-Foil has single layer, two layer, three layer and even honey-comb layer reflective insulation products for various building applications, each with different performance levels and attributes for the particular application. These products also work very well with other types of mass insulation as hybrid systems by using the best attributes of each of the technologies (e.g. spray foam is great for air sealing and can have a high R--value per inch of thickness --  fiberglass and cellulose is an inexpensive material to reduce convection in the cavity). In some wall systems, especially wall cavities larger than 1.5”, a combination of reflective insulation with one or more of these mass insulation products, addresses all the modes of heat transfer -- often more cost effectively than one of the technologies used alone.

 

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