UC默塞德校园的最新成员挑战项目团队以将可持续发展界定为中心。但是，复杂的窗帘壁系统和其他绿色建筑要素需要仔细的BIM协调，以防止分包商在开发科学和工程大楼2时，使分包商不受干扰。

The exterior of the $88-million project incorporates "pretty much every type of skin system available," says Nathan Long, assistant project manager of St. Louis-based construction manager McCarthy Building Cos. "We have composite metal panels, insulated metal panels, plaster, curtain wall systems, precast panels and columns, and a photovoltaic structure with steel—and everything ties in together."

这座三层楼的实验室和教室建筑目前已完成90％以上，并计划于今年夏天开放。由总部位于旧金山的SmithGroupjjr设计的101,900平方英尺的设施正在追求LEED-PLATINUM地位，并将遵守净零净能源使用的总体梅塞德校园目标。

Long says putting the exterior skin together was tricky because the design was purposely left incomplete and turned over to six separate contractors to finish by doing such jobs as the roofing or installing precast panels through integrated shop drawings.

“所有承包商都必须通过详细说明系统的界面并协调安装来聚在一起并完成设计。他们必须弄清楚如何建造它，制定并提交批准，”他说。“这很具有挑战性，因为承包商不习惯进行合并的商店图纸并与其他所有人的范围分享。”

窗帘墙承包商Alcal Specialty合同的部门经理Dan Brenson亲眼目睹了这一手。他说：“与其他行业有大量的整合和协调，从他们那里获得信息是一个挑战。”“在我们将它们的设计纳入我们的方面之前，需要解决自己的设计方面，因此有一个时间方面，等待他们的完成的细节和批准延迟了我们的流程。”

Irene Monis, project architect and SmithGroupJJR partner, says for a structure of this size and type, it is not uncommon to use a number of exterior materials to "express the function and to respond to the climatic design characteristics" of the site. For example, the south elevation features a curtain wall with deep aluminum shades to provide abundant daylight to offices but keep out the intense heat of the San Joaquin Valley during the summer. The north elevation features stucco walls with punched aluminum windows to control daylight in lab spaces.

大约25500平方英尺的铝窗框with glass windows are incorporated into the curtain wall system. Roughly 1,050 tons of steel comprise the building's internal skeleton.

为了帮助项目团队建立复杂的结构，在现场建造了最先进的虚拟计划室，以供日常会议和BIM协调。

麦卡锡项目主管蒂姆·阿尔比亚尼（Tim Albiani）表示，由于该项目被设计为“真实模型”，因此它被写入了所有承包商的合同中，他们必须具有完整3D模型中所有系统的能力。他说：“我们正在强迫承包商加入船上的信封，在这个项目上，他们做得很棒。”