ShowPass是EnerPhit对位于巴塞罗那城市中心（22@）的一座20世纪初的建筑进行的示范性改造。能源解决方案被展示出来，通过开放日向住房开发商和建筑专业人士展示。ShowPass提出的节能行动具有更广泛的重点，以便在地中海地区展示和传播EnerPHit能源改造的可行性，作为一个参考标准。此外，ShowPass提出了一个经过认证的碳中和建筑，以减轻气候变化的影响，同时保证其居住者有非常高的舒适度和健康水平。该建筑已经通过了EnerPhit Step-by-Step和Ecómetro标签的认证。

ShowPass is an EnerPhit demonstrative retrofit of a building from the beginning of the 20th century, located in the urban heart of the city of Barcelona (22@). The energy solutions are on display to expose them to housing developers and construction professionals through open days. ShowPass proposes energy efficiency actions with a broader focus so as to demonstrate and disseminate the viability of EnerPHit energy retrofit in the Mediterranean as a reference standard. Moreover, ShowPass proposes a certified carbon-neutral building to mitigate the effects of climate change, while guaranteeing its dwellers a very high level of comfort and health. The building has been certified both under EnerPhit Step-by-Step and Ecómetro labels.

EnerPHit- Step by Step的改造已经分两个阶段进行了。在目前的干预中，已经完成了建筑的热围护结构以及底层和一楼住宅的调节工作。底层被组织成两个部分：一部分，宽而开放，最大限度地利用自然光和交叉通风，涵盖了与后方天井相连的公共用途（客厅、餐厅、厨房）。另一部分，狭窄而紧凑，包含垂直通信、服务和技术房间。这种垂直通信的集中有利于分布在一楼，3间卧室位于与室外和自然光接触的地方，以及二楼的住宅，接下来将进行空调。

The EnerPHit- Step by Step renovation has been carried out in two phases. In the current intervention, work has been done on the thermal envelope of the building and on the conditioning of the ground floor and first-floor dwelling. The ground floor is organized in two parts: one, wide and open, maximizing natural light and cross ventilation, covering common uses (living room, dining room, kitchen) in connection with the rear patio. The other part, narrow and compact, contains the vertical communication, services, and technical rooms. This concentration of the vertical communications facilitates the distribution across the first floor, where the 3 bedrooms are located in contact with outdoors and natural light, and the dwelling on the second floor, which will be conditioned next.

各种各样的低影响的生态材料解决方案被用来证明和传播技术的可行性，以符合我们建筑去碳化的需要。对于街道的立面，为了尊重原有的立面，并通过底层土壤的毛细作用来处理湿度，在内部选择了硅酸钙的保温材料。另一方面，天井的通风外墙使用了阻燃玻璃棉保温材料，并在内部辅以再生棉保温材料。天井中的附属建筑采用了木纤维板和粘土砂浆进行保温，以便在夏季实现最佳的被动湿度管理。在底层，在10厘米厚的高密度岩棉板上安装了一个浮动地板。为了在声学和热学上密封建筑物的施工缝，使用了当地制造商的绵羊毛和经过认证的低排放密封带。此外，还安装了淋浴水的能量回收系统，以减少DHW（生活热水）的能源消耗，这是被动房中二氧化碳气体排放的主要来源之一。

A wide variety of low-impact ecological material solutions have been used to demonstrate and disseminate the feasibility of technologies in line with the need to decarbonize our buildings. For the street façade, thermal insulation with calcium silicate has been chosen on the inside in order to respect the original façade and to deal with the humidity by capillarity of the subsoil. On the other hand, fire-retardant glass wool insulation has been used in the ventilated façade of the patio, complemented with recycled cotton insulation inside. The annex in the patio is insulated with wood-fiber boards and clay mortar for optimal passive moisture management in summer. On the ground floor, a floating floor is installed on 10 cm thick high-density rock wool plates. To acoustically and thermally seal the building’s construction joints, sheep wool from a local manufacturer and certified low-emission sealing tapes have been used. In addition, an energy recovery system of shower water has been installed to reduce the energy consumption of DHW (domestic hot water), one of the principal sources of CO2 gas emissions in a Passive House.

关于主动式HVAC系统，已经安装了一个带有太阳能蒸发器的空气-水热泵，从而消除了外部设备中风扇的电力消耗，以及一个带有集成再循环和加热/冷却装置的紧凑型热交换器。根据PHPP（被动式房屋规划包）工具的计算，ShowPass建筑在运行阶段可以节省约80%的温室气体排放。在建筑的整个生命周期内（按50年计算），二氧化碳排放量的减少甚至更高：与改造前的建筑相比，约为90%。同样，用户在城市中心享受到几乎零能耗的高舒适度。

Regarding the active HVAC system, an air-to-water heat pump with a solar evaporator has been installed, thus eliminating the electrical consumption of the fan in the external device, as well as a compact heat exchanger with an integrated recirculation and heating/cooling device. According to the calculations of the PHPP (Passive House Planning Package) tool, the ShowPass building saves about 80% of its greenhouse gas emissions in the operational phase. The reduction of CO2 emissions in the whole life cycle span of the building (calculated over 50 years) is even higher: about 90% regarding to the building before the renovation. Likewise, users enjoy almost zero energy consumption with high comfort in the city center.

Architects: Energiehaus Arquitectos
Area : 213 m²
Year : 2021
Photographs :Pol Viladoms
Manufacturers : Hoppe, KEIM, Finsa, Knauf, Persiana Barcelona, Plaka, Proclima, ROCKWOOL, Sto, Zehnder, BASF, Baetulenn , ComCal, Crevin, Defango , Defcon8, Defcon8, EJOT Ibérica SLU, EJOT Ibérica SLU, Ecoclay, Georenova – ver: Pichler, Georenova – ver: Pichler, Grau i Grau , Grau i Grau , Griesser, Gutex, Inbiot, Inbiot, Kline, Midsummer, Midsummer, Petwalk Solutions GmbH & Co KG, Petwalk Solutions GmbH & Co KG, Pichler, Pichler, Premium-Tek Appliances S.L., Premium-Tek Appliances S.L., Prihoda, Prihoda, RMT, RMT, Rollgum, Rollgum, Smartwin – Ventanas Gardea, Smartwin – Ventanas Gardea, Sol&Go, Sol&Go, Solomat , Solomat , Soudal, Soudal, VentanasDirect, VentanasDirect, Xella, Ytong, Xella, Ytong, Zypho, Zypho, fritz&wood, fritz&wood, loxone
Country：Spain