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Proposed P2Endure multifunctional panel.  

​​​The EASEE prefab panels are composed of two layers of Textile Reinforced Concrete (1.2 cm each) and insulation core between them made of expanded polystyrene (10 cm). The total thickness of the panels is 12.4cm. The thickness of the insulation may be increased if needed. The width of the panel is in the range of 0.5m-1.5m and the height 1.5m – 3.0m. The weight of the panel is around 54 kg/m2. The anchorage system allows achieving flexibility and capability to adapt to different architectonic configurations and building typologies. The panels can be attached to the concrete slabs or to the brick/cellular concrete blocks. When applied, these panels increase the thermal properties of the envelope after retrofitting (U<0.23 W/m2K for retrofitted wall), reduced installation time by 50% in comparison with traditional retrofitting, high aesthetic properties that allows application of the solution to buildings under cultural heritage protection. P2Endure adopts, enhances and implements the innovative prefab EASEE panels, which have successfully been tested in field demonstration in Gdańsk (PL) and Milan (IT).


Proposed P2Endure smart energy-efficient window.

​​Windows that can be rotated by 180° to reduce the thermal radiation from the outside during summer season, and reduce the thermal dispersion from the interior in the winter, thanks to the double positioning of the low-E glass. The smart window provides natural ventilation, rotating and locking mechanisms which enhance anti-burglary features, as well as integration with state-of-the-art domotics solutions. It satisfies the needs for high energy-efficiency, better indoor climate, and top class security features.

The reversible window technology is enabled by innovative hydraulic gaskets and burglar-proof electro-magnetic locking mechanisms fully integrated in the frame. There are 3 affordable innovative components: 1) Active gaskets allowing sealing, ventilation or release with simple hydraulic or pneumatic systems; 2) Structure of the frame with rotating sash across either horizontal or vertical axes; 3) Window locks and control system, with possible integration with building automation, HVAC (Heating, Ventilation and Air Conditioning) control systems and centralized security features.

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Proposed P2Endure folding balcony.

Bloomframe® is an innovative window that transfers into a balcony at the touch of a button. The engineering was finished in 2015; the final prototype was presented at the international construction exhibition BATIMAT 2015 in Paris; the first sales and applications will start in 2016. The Bloomframe® folding balcony is designed by Hofman Dujardin Architects and manufactured by the French manufacturer Kawneer, a global leader for aluminium facades, windows and doors based on the Alcoa window system. 
The Bloomframe® folding balcony is applicable for both new building and deep renovation projects. The advantages of the concept are especially clear in transformation projects were housing is realized and a regular balcony is not possible or not allowed while residents in congested urban areas demand private outside space to enjoy the weather. The cost of the Bloomframe® folding balcony as demonstrated will trend to the cost of a large window frame of the same quality and performance and a traditional balcony of the same size. The energy performance of a Bloomframe® folding balcony (high insulation rate and high solar factor) for deep renovation will help to realize zero energy target for the building, which puts the RoI (Return on Investment) realized at zero. The use of Bloomframe for deep renovation will help to realize a nZEB (nearly Zero Energy Building) with EPC = 0.15.​

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Proposed P2Endure rooftop retrofitting / extension module.

Adding new dwellings on existing roofs increases the sustainability and life time of the buildings, at the same time reduces the energy consumption. This has successfully been demonstrated in several pilot projects within the EU IEE (Intelligent Energy Europe Programme) project SuRE-FIT (Sustainable Roof Extension Retrofit for High-Rise Social Housing in Europe), particularly in the Westerpark project in Tilburg, NL. The pilot additional new roof-top dwellings partially cover the expenses for the refurbishment of the existing apartments. It has been proven as a well-performing deep renovation solution that results in energy neutral dwellings. Flexible roof-top extension retrofit has been proven as a viable solution, both technologically and financially and combining social, ecologic and economic advantages. In recent years the Build-on-Top concept was improved with prefab light-weight steel structures for added roof houses (ENDIS Portico Flat Concept; award winner of Head Start 2012 and the innovation price 2014 for Smart Building). In P2Endure an improved concept will be implemented for deep renovation at the live demonstration case in Tilburg, NL.


Proposed P2Endure PnP smart connectors.

P2Endure will apply smart connectors for mechanical, hydraulic, electrical, air and ICT joints. These smart connectors are available under development in related projects such as EEASE and MORE-CONNECT. In EASEE the joint between the panels has been made using a low elastic modulus neutral-curing silicone sealant with outstanding ageing resistance. The silicon has been placed on polyurethane backfill material in order to reduce the danger of cracking. The elasticity remains constant at temperatures ranging from -50°C to +100°C. The high resistance to UV rays and atmospheric agents foresees that after 20 years of service under normal conditions, the joints shows no trace of superficial cracks. In the test two different colours have been chosen, grey between the light grey panels and black between the charcoal colours. Around the whole perimeter of the test façade, the cavity between the panels and the existing wall, has been close using a polyurethane foam sealant. With this the air permeability is drastically reduced and a close air cavity is created.


Proposed P2Endure PnP prefab HVAC systems.

P2Endure will implement a complete PnP MEP/HVAC (Mechanical, Electrical, and Plumbing/ Heating, Ventilation and Air Conditioning) engine for deep renovation. This solution includes: air-heat pump, storage capacity for domestic hot water (DHW), mechanical ventilation system, expansion barrel, and control systems. It has an extra option of split- engine (two cores), i.e. one for energy conversion and storage the other for ventilation and heating/cooling. The mounting time on-site is significantly reduced by the application of smart connectors.
This innovative solution has significant advantages: 1) the total cost of retrofitting is reduced by 40% due to efficient manufacturing and efficient use of labour; 2) quick assembly time of just 0.5 day to place engine, connect pipes/ducts, and then operate with predictable performance; 3) weight of the modules reduced by 35% compared to traditional components, due to redesign and combination of functions. This solution has recently been used for pilot implementation of deep renovation in several single-family dwellings and apartment complexes in 2 European climate zones: moderate and Mediterranean.


Proposed P2Endure compact energy storage.

Thermal technologies do not have such general interconnectivity and therefore rely on sizing typically meeting 90% of summer demands in moderate climates. This existing approach provides little benefit in winter. Therefore an obvious approach is that of thermal energy storage that overcomes issues of heat loss, substantially increasing the overall use of RES (Renewable Energy Sources) in buildings throughout the seasons. The innovative P2Endure product derived from the MERITS project is a compact seasonal storage system based on novel high-density materials that can supply required heating, cooling and domestic heat water (DHW) with up to 100% RES. Delivery of heat on different dedicated temperature levels is one of the key prerequisites of the system. Tailoring to the size of individual dwellings is a second one. The storage system must have a manageable volume comparable with the footprint of a domestic dwelling. Such a tank typically becomes between 4m3 and 8m3 and has a possibility of being incorporated under for example a garden space. The starting conditions for the dimension of storage materials and capacity, and the storage system and control system have been investigated. Prototypes of dedicated solar collector for the storage system for specific climate zones have been designed and developed. An integrated design for the different components and enhance thermo-chemical materials has been tested. Prototypes of the system (for three different climate zones) have been demonstrated and evaluated in a field test. P2Endure aims to improve the market up-take through integrated business models, market strategies and other non-technical issues​

Dr. Rizal Sebastian
DEMO Consultants B.V.
Delftechpark 10, 2628 XH Delft
The Netherlands
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This project has received funding from the European Union’s Horizon 2020
research and innovation programme under grant agreement No. 723391.