The application of super spacer on the insulating glass of the skylight.
Super Spacer® is a thermosetting, high-performance flexible (elastic) insulating glass spacer, manufactured using a thermosetting elastic microporous structure, silicone material, containing desiccant, and manufactured by extrusion technology. It has a super tight seal. It can effectively isolate outdoor noise, the sound insulation performance reaches level 4, and the maximum sound insulation effect reaches 42dB. Different from traditional rigid spacers, such as aluminum spacers, stainless steel spacers, stainless steel polypropylene composite spacers, glass fiber warm edge spacers, etc.
Figure 1 The insulating glass super spacer 1
We know that the load, radiation intensity, and pumping strength of the flat or inclined roof glass are different from those of the facade glass, which puts forward higher requirements for the edge sealing of the insulating glass.
Figure 2 The application of super spacer on the insulating glass of skylight 1
Figure 3 The application of super spacer on the insulating glass of skylight 2
The application advantages of super spacer strips in daylighting top insulating glass are mainly reflected in the following points:
Low thermal conductivity, thermal insulation
As we all know, the irradiation time and intensity of the roof glass are much greater than that of the façade glass in the same location. The super spacer has an ultra-low thermal conductivity (the thermal resistance is more than 1000 times that of the aluminum spacer), which means that the super spacer is installed. The insulating glass has less edge heat conduction, which reduces the U value of the insulating glass, improves the thermal insulation performance of the glass, and is more conducive to building energy conservation. At the same time, the ultra-low thermal conductivity of the super spacer also brings better anti-condensation performance to the skylight insulating glass, reduces the risk of mold growth and dripping caused by glass condensation, and also presents a more transparent lighting effect.
Figure 4 The thermal insulation function of the insulating glass of the skylight 1
Data source: Swiss Federal Institute for Materials Testing (EMPA)
Excellent argon retention
Filling the insulating glass with an inert gas (usual argon) is the most economical method to reduce the U value of the glass. However, the insulating glass composed of traditional rigid spacers is difficult to control in terms of maintaining the inert gas.
Due to its flexibility (elasticity) and continuous sealing, the super spacer makes the insulating glass have excellent argon gas retention performance, to maintain the energy-saving performance of the insulating glass for a longer period, and avoid the large difference between the actual energy-saving effect and the design value in the later period. and risk of insufficient heat flux.
Figure 5 The application of super spacer on the insulating glass of skylight 3
Excellent sealing durability
Due to its structure and processing and molding process, the traditional rigid spacer may have high-frequency welds on the back, and may also appear joint seams, micro-cracks on the back of the bending, uneven protrusions at the bending corners, and molecular sieve filling holes. In the case of air intake channels, these inherent sealing defects make the service life of insulating glass relatively limited. Under the "pump effect" of the insulating glass (the gas in the cavity expands and contracts with heat), the traditional rigid spacer insulating glass may experience the phenomenon of butyl rubber overflow and tearing, which increases the possibility of sealing failure of the insulating glass, while lighting The top glass pump effect is more pronounced, and the probability of its seal failure is greatly increased.
Figure 6 The Super Spacer pumping action 1
The 100% elastic memory function of the super spacer can shrink or rebound with the pump effect, thereby effectively resolving the pumping load of the hollow edge seal. Moreover, the world's first three-way sealing structure can effectively prevent the butyl from moving under the pump effect, ensuring the continuous and complete butyl sealing of the insulating glass.
Figure 7 Super Spacer: Triple seal warm spacer system 1
Reduce the risk of glass breakage
Due to its gravity, the edge of the insulating glass and the spacers of the skylight are in a state of stress for a long time. When the temperature difference of the skylight is large and the "pump effect" is more obvious, it is difficult to ensure that the glass is evenly stressed during the glass installation process. , the edge rigid support of the traditional rigid spacer insulating glass makes the glass stress concentrated, which greatly increases the risk of glass self-explosion and thermal stress damage.
Figure 8 The edge rigid support for insulating glass 1
The flexibility of the super spacer can greatly alleviate the phenomenon of stress concentration at the edge of the glass. The existence of the pressure-sensitive adhesive also effectively enhances the shear resistance of the glass, and can also reduce the deformation of the glass. Reduce the risk of glass breakage. Under extreme rain and snow weather conditions, the flexible and elastic characteristics of the super spacer can effectively relieve the impact of rain and snow and the pressure of accumulated water and snow, and also reduce the risk of glass breakage.
Figure 9 The flexibility function of the super spacer 1
The application advantages of special glass are obvious
The advantages of super spacer insulating glass in cold-formed roof glass are unparalleled by traditional spacers, and its flexibility and elasticity are perfectly suitable for the cold-bending process. When calculating the stress of cold-formed glass, there is no need to worry about the risk of glass breakage caused by the hard support of rigid spacers and the sealing durability of cold-formed glass.
The advantages of super spacer insulating glass on curved surfaces and special-shaped lighting top glass are mainly due to the poor conformity between curved surfaces and special-shaped glass under normal circumstances, and the use of traditional rigid spacers is prone to butyl glue virtual joints and breakpoints ( Especially the corners), thus affecting the life of the insulating glass.
Figure 10 The advantages of super spacer on curved surface and special-shaped skylight insulating glass 1
Excellent sound insulation
The noise source of the roof glass is different from that of the facade glass. The biggest noise source is mainly the impact of rainwater and glass. In the traditional rigid spacer insulating glass, the rigid spacer at the edge acts as a sound bridge, so that the rain impact sound is directly transmitted to the interior layer of the insulating glass and then into the room. The flexible microcellular foam structure of the super spacer can effectively alleviate the direct conduction of sound and block the transmission of noise to a great extent.
Figure 11 The excellent sound insulation performance on super spacer insulating glass 1
The application advantages of super spacers on skylight insulating glass are so significant, that we will see them in more and more skylight projects.
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