certification:addendum_to_the_building_certification_criteria_concerning_the_use_of_vacuum_insulation
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certification:addendum_to_the_building_certification_criteria_concerning_the_use_of_vacuum_insulation [2021/05/04 16:25] – naman.sukhija@passiv.de | certification:addendum_to_the_building_certification_criteria_concerning_the_use_of_vacuum_insulation [2021/06/04 12:50] (current) – removed nsukhija | ||
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- | ======Addendum to the building certification criteria concerning the use of vacuum insulation====== | ||
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- | The introduction of **vacuum insulated panels (VIPs)** represents an exciting development in the range of available insulation materials for buildings. Their relative slimness means that Passive House standard U-values can be reached, even with very narrow wall constructions. This seems to be especially attractive for developers in locations where floor space is very expensive and must therefore be maximized, and also for retrofit schemes where the available space for the installation of insulation is limited. | ||
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- | On the other hand, the insulating properties of the panels are maintained only as long as the encapsulating membrane stays intact, which is difficult to guarantee over long periods of time, such as the typical building life cycle of 60 years. Failure can lead to low interior surface temperatures, | ||
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- | For these reasons, the Passive House Institute (PHI) recommends that this technology be used sparingly, and only where standard, non-vacuum insulation materials cannot be installed or are not economical (under consideration of life cycle costs and shorter service life compared to standard insulation materials). | ||
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- | In cases where its use is unavoidable, | ||
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- | * Panels should be tested by a notified body or other recognized testing institute according to the relevant guidelines in EN 17140: | ||
- | * The rated/ | ||
- | * The panels must be pre-fabricated in a controlled factory setting and must need minimal on-site processing (no cutting, minimal adhesion, etc.). | ||
- | * The pre-fabrication process should, as far as possible, include pre-installation of services (electrical, | ||
- | * The design of the panels should allow for easy mounting; there should be a documented method for installation of the panels by a suitably qualified craftsperson, | ||
- | * Where it is the case that services (electrical, | ||
- | * The panels should be easily accessible and inspectable via thermal camera to detect defects, e.g. behind a removable ventilated façade. | ||
- | * Where defects are detected, there should be a documented method for panels to be removed and replaced by a suitably qualified craftsperson; | ||
- | * There must be a maintenance plan in place from the time of installation to monitor the performance of panels for the foreseeable future, unless it can be demonstrated that this would fall under national operation and maintenance requirements in the region of application. | ||
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- | Where a Passive House, EnerPHit, or PHI Low Energy Standard certification is targeted, the conditions listed above are mandatory, in addition to the following: | ||
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- | * A clear justification of the use of VIPs must be submitted in writing to the certifier. | ||
- | * Photos and/or videos of all key stages of the VIP manufacturing process must also be submitted. In certain instances, the PHI may request physical samples. | ||
- | * A copy of the operation and maintenance plan must be provided by the building owner; this must include details of how the building performance is to be constantly monitored in order to ensure that VIP failure is quickly recognized. | ||
- | * A stress test for the surface temperature by way of f< | ||
- | * Certificates will have a limited validity of 15 years, following which investigations will need to be carried out to confirm that the standard continues to be met in use. | ||
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- | The Passive House Institute does not consider certification of construction systems that use VIPs as Passive House Components due to the reasons mentioned above. | ||
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- | For queries regarding building certification, | ||
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- | ---- | ||
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- | =====See also===== | ||
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- | [[planning: | ||
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- | [[planning: | ||
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- | [[certification: | ||
certification/addendum_to_the_building_certification_criteria_concerning_the_use_of_vacuum_insulation.1620138305.txt.gz · Last modified: 2021/05/04 16:25 by naman.sukhija@passiv.de