Architects: Guild Architects Project: Second Storey Sustainable Extension Location: Northcote, Victoria, Australia Completion date 2017 Photography: Jack Lovel

建筑师：建筑师协会建筑师项目：第二层可持续扩展地点：北科特，澳大利亚维多利亚完成日期2017年摄影：Jack Lovel

From the architect: This project is a light flooded second storey extension to a Californian bungalow in Northcote, Melbourne. Brief: – More space and storage for growing family –€“ three young children sharing the one small bedroom before the renovation. – More light to ground floor areas and better internal/external connection. – Sustainability:€“ passive solar design, maximising re-use/retention of existing building and a long-term goal of transitioning off fossil fuels. – Fun spaces for the children and more storage (including their colour coded LEGO!)

来自建筑师：这个项目是一个轻度淹水的二层延伸，在北墨尔本加州平房。简略：-为成长中的家庭提供更多的空间和空间-在装修前，三个孩子共用一间小卧室。-地面面积照明更多，内部/外部连接更好。可持续性：被动式太阳能设计，现有建筑的最大限度的再利用/保留，以及放弃化石燃料的长期目标。-儿童的娱乐空间和更多的存储空间(包括他们的颜色编码乐高！)

Challenges: – Improve light quality and outside connection to the southern end of the building without extensive re-configuration to the existing house (which was in good condition). A covered deck attached to the house, dense vegetation to the eastern side and a study centred on the hallway (a classic Californian bungalow feature) meant the house was dark and had poor external connection. – Retaining the ground floor 3.16 high ceilings whilst meeting ResCode setback standards to the first floor. – Creating a thermally comfortable second storey without the aid of traditional mass materials such as brick and concrete (precluded by the existing timber frame) to provide temperature stability. – Accommodating the clients sizeable brief in a first-floor extension behind the existing ridge line without a bulky form dominating the period home when viewed from the street.

挑战：-改善建筑南端的光质量和外部连接，而不需要对现有的房屋进行大规模的重新配置(在良好的条件下)。房子上有一层有盖的甲板，东侧有茂密的植被，走廊上有一间书房(典型的加州平房特色)，这意味着房子很黑，外部联系也很差。-保留一楼3.16层高的天花板，同时在一楼达到ResCode挫折标准。-建造一层热舒适的第二层，而不借助传统的大量材料，如砖和混凝土(现有木材框架所挡住的)，以提供温度稳定性。-在现有山脊线后面的一楼延伸处为客户提供相当大的便利，当从街道上看到时，没有一种庞大的形式支配着这段时间的家。

Solutions: – Demolishing the study opened the hallway up to the rear yard and a new double height north facing stair void floods the depths of the house with light. This minimised work to the ground floor and allowed the owners to remain in occupation for a large part of the build reducing total project costs. Heat stratification associated with first floor voids is offset with ceiling fans and a heat shifter ducted to the ground floor level.

解决办法：拆除书房，打开走廊，通往后院，新的双高向北，面向楼梯的空隙，淹没了房屋的深处，充满了亮光。这使底层的工程减少到最低限度，使业主能够占用建筑的很大一部分，降低了总工程成本。与一楼空隙相关的热分层与吊扇和热移位器相抵。

– The high point of the new roof is setback from the existing ridge line, reducing the apparent height of extension when viewed from street. Sloped walls further diminish the perceived height whilst meeting ResCode standards. The sloped walls and variation in ceiling heights create fun, quirky attic like spaces for the kid’s areas.

-新屋顶的最高点是从现有的山脊线倒退，减少了从街道上看到的明显延伸高度。倾斜的墙壁在达到ResCode标准的同时，进一步降低了感知到的高度。倾斜的墙壁和不同的天花板高度创造了有趣的，古怪的阁楼，为孩子的区域空间。

– Alternative pathways have been created for the children. A walkway over the void and hatches to the storage connect the two southern bedrooms providing opportunities for hide and seek and other games. Robust joinery can be climbed on sat on or jumped off. – The aquarium provides a dynamic feature for children to look at, look through and learn from and links the existing house to the extension through borrowed light and stairwell glimpses. The aquarium is framed on the hallway side by an expansive pin board for children artwork and family photos. – The usually dead space under the stairs provides bulk storage for school bags, helmets and shoes via timber drawers that form the lower part of the staircase. Bi-fold doors to the new first floor living area conceal recycled shelving containing an array of toys and books (including the coloured coded LEGO!) and utilises the dead space created by the angled walls.

-为儿童创造了其他途径。一条走廊穿过空地和舱口，连接两个南方卧室，为捉迷藏和其他游戏提供了机会。坚固的细木工可以爬上、坐上或跳下来。-水族馆为儿童提供了一个充满活力的特点，供他们通过借来的光和楼梯间窥视、观察和学习，并将现有的房子与延伸部分连接起来。水族馆是由一个儿童艺术品和家庭照片的膨胀别针板框在走廊边。-楼梯下通常是死尸的空间，通过构成楼梯下部的木材抽屉为书包、头盔和鞋子提供大量储存。新的一楼起居区的双折叠门隐藏着回收的架子，里面有一系列玩具和书籍(包括彩色编码的乐高！)利用由倾斜的墙壁创造的死气沉沉的空间。

– BioPCM (phase change material) to new ceilings provides a biodegradable, carbon neutral, highly efficient lightweight mass alternative. After much debate a temperate system was chosen for the aquarium (approximately 1 tonne of weight in total including the filter tank). However, it was originally envisaged as highly efficient low embodied energy mass and retains the ability to be converted to a cold-water system in the future. The foundations for the tank utilised the footings of a redundant chimney, minimising concrete.

经过多次辩论，水族馆选择了温带系统(包括滤池在内的总重量约为1吨)。然而，它最初被设想为高效率、低含能质量，并保留了将来转换为冷水系统的能力。坦克的基础使用了一个多余烟囱的底座，使混凝土最小化。

– The above ground recycled shipping container pool required no excavation or concrete and can be recycled at the end of its life.

-上述地面回收船运货柜池无须挖掘或混凝土，可在使用寿命届满时循环再造。

– Siting based on passive solar design with living areas oriented to north, north and west windows appropriately shaded with fixed or adjustable shading, automated southern clerestorey windows for cross and stack ventilation, high specification Miglass composite windows, retrofitted insulation to all existing walls and floors, insulating honeycomb blinds internally, LED lighting, low VOC finishes, sisal carpet, sustainably sourced hardwood plywood for floors and joinery, new plumbing connected to existing water tanks and grey water system, retained solar hot water and solar panels and new hydronic heating system designed for adaption to heat pump for complete transition off fossil fuels in the future.

-基于被动太阳能设计，向北、向北和向西方向的生活区适当遮阳固定或可调节的遮阳层，南部自动柜员窗，用于交叉通风和叠置通风，高规格的米玻璃钢复合窗，对所有现有墙壁和地板进行改进的绝缘，内部绝缘蜂窝百叶窗，LED照明，低VOC饰面，剑麻地毯，地板和细木工用可持续来源的硬木胶合板，与现有水箱和灰色供水系统连接的新管道，保留太阳能热水和太阳能电池板，以及为适应热泵而设计的新的水热水和太阳能电池板以及新的加热系统，以便在将来完全过渡到化石燃料。