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ARMATHERM™ Thermal Envelope Solutions
Armatherm™ FRR material provides a combination of low thermal conductivity and high compressive strength and has been used in hundreds of structural steel framing connections transferring load in moment and shear conditions. The material is made of a reinforced, thermoset resin which is fire resistant, does not readily burn and has very limited creep under load, making it the ideal material for use in structural and façade thermal break connections.
Armatherm™ 500 is a high strength, polyurethane material made in several densities to support a wide range of loading conditions. Due to its closed cell structure, it does not absorb water or moisture and has limited creep under continuous load. The material is thermoset, does not melt and is flame resistant making it an ideal material for use in structural thermal break connections.
Armatherm™ material provides low thermal conductivity and high compressive strength. It has been used in hundreds of structural steel framing connections in moment and shear conditions including canopy and balcony applications. Armatherm™ washers prevent a thermal bridge through bolted connections which would otherwise provide a path for heat flow through the thermal break assembly.
Roof to wall and parapet locations require structural framing for support which prevents continuous insulation from roof to façade. This creates a thermal bridge which can be prevented by providing a Armatherm™ 500 series structural thermal break under the parapet connecting the façade and roof insulation and improving the effective R value by as much as 30%. A thermal break can also be installed within the envelope at roof penetration points where structural elements are supported.
ARMATHERM™ ISOLATED CLADDING "Z" GIRT (Arni Girts)
Use of metal "Z" girts provides a continuous, metal path from the façade exterior through the insulated envelope and into interior steel studs resulting in thermal bridging and energy losses. Armatherm™ "Z" girts reduce heat loss by as much as 70% by providing a structural attachment for cladding that effectively eliminates thermal bridging.
View Armatherm Z Girt Data.
Columns traditionally extend through the building envelope and slab insulation at their base. Thermal bridging can be prevented by using Armatherm™ 500 series material as a load supporting, thermal break directly under the column base. This is particularly important in cold storage facilities to prevent the sub grade from freezing.
Masonry veneer walls require tie-backs and shelf angles which form significant thermal bridges and reduce the walls’ R value by as much as 60%. Shelf angle connections penetrate the insulating layer (thermal envelope) of the wall assembly creating a continuous thermal bridge. The impact of the thermal bridging can be reduced using Armatherm™ material and washers between the angle and the structure within the insulating layer. Heat loss can be reduced further by using a stainless steel angle/bracket system in conjunction with Armatherm™ material completely eliminating a continuous thermal bridge. A support/bracket solution is also available to support and restrain stone cladding.
Like shelf angles, curtain wall mullions have an impact on the thermal performance of a building’s envelope.
Small in area but required in many locations, the total heat loss due to these highly conductive elements can be substantial. Armatherm™ thermal break material transmits the structural loads of curtain wall frames and spandrel panel connections while reducing heat loss.
As with locations 1, 2 and 4, thermal bridging also exists at cast in situ concrete balcony and floor slab edge connections. These connections create heat losses as they pass through the thermal envelope of the building. Armatherm™ 500 series thermal break material used with Armatherm™ rebar provide structural support of cantilever stresses with lower thermal conductivity than even stainless steel elements.