BALLIOL COLLEGE, SPORTS PAVILION
NOVEMBER 2019
7:45 AM, London Bridge. The train from Uckfield just entered the station and is spitting out hundreds of commuters, flowing past us. We hop on the now empty train and leave London to visit our timber sub-contractor’s workshop in East Sussex.
We are fast approaching the construction stage of our Sports Pavilion project for Balliol College in Oxford and were invited to review a mock-up of the roof structure. The pavilion roof is formed of slender sweet chestnut glulam joists; 10 layers are stacked on top of each other, each layer cantilevering further into the space, creating a coffer.
1:50 model
From outside the roof structure expresses itself as a lantern, popping up in the centre of the building. The lantern is fully glazed, allowing for rays of sunshine to enter through the stacked glulam. In the evening, the dense timber lattice will be highlighted by a subtle glow, originating from LED strips, that are recessed in the top of the glulam joists.
The mock-up in Inwood’s (timber sub-contractor) workshop
Lighting strategy detail plan and section
The mock-up was used to test the connection details between the individual layers of glulam, the construction sequence, and the integration of the LED strips and the associated wiring. Preceding the assembly of this mock-up, these details have been worked through and coordinated in many lengthy design workshops, involving the contractor, structural and electrical engineers, the timber sub-contractor, electricians and us architects. As such, it was even more enjoyable to review the mock-up with all the parties involved and to see our combined efforts bearing fruit.
The carpenters who built the mock-up and the Electrical Engineer, Design Manager, and Architect discussing the installation and accessibility of the LED strips
THE FURTHEST FROM THE FLOOR
NOVEMBER 2014
Imagine a room without a roof, where the sky can be seen and the seasons read. This room holds the capacity to frame dazzling colour and scaleless formation, silent motion and subtle evolution.
What if a roof challenged these things, and set out to generate a drama quite of its own?
Often we witness the world at eye-level alone. Much of our urban landscape positively encourages us to do so. Yet it is sad if, on the occasion we raise our eyes to the ceiling, we are not enamoured with what we find. It is often height that offers the best opportunity for expression. With height comes volume and the potential to present the greatest manifestation of depth and structure.
Our practice explores the roof and the complexity of a soffit as an ongoing theme. The notion of the exposed rafters in a barn has influenced the design of the soffit in our gallery at Auckland Castle. We are developing an array of rafters that create density yet delicacy in their mass when tightly multiplied. Though the roof is low, its lowest point occurs just higher than your fingertips, creating a definitive datum between the world of rafters and the world of exhibitions. This effect is further enhanced by the muted nature of the walls to increase the feeling of overhead awareness.
As contrast to this, your gaze is directed by the vertical piers that surround you as you move through Bishop Edward King Chapel in Oxford. Slowly they rise, higher and higher, until they meet the ceiling, at which point orientation is adjusted and the piers fuse with the weave of rafters. It is pleasurable to witness something simple become something complicated. Height offers the opportunity for elements in the space to take you on a journey. They “pick you up” at eye-level and carry you up to the roof, where often the brightest or darkest environments exist.
The requirement to defend from rain leaves the roof little choice but to protect, as efficiently and simply as possible, granting the interior more freedom for expression. And why not, when you consider where most building users will stand? However, as our towns and cities become denser, the roof, as seen from its surroundings, becomes an increasingly important issue to address.
The two examples I have given construct varying degrees of interest, leading me to suggest that it is possible for a roof to respond to that drama in the sky with a drama of its very own.
Katherine received a BSc Degree from the Bartlett in 2008. In 2007, she was awarded The Henry Herbert Bartlett Travel Scholarship and the UCL Expeditions & Travel Grant to conduct a construction project in Kampala. She joined Niall McLaughlin Architects in 2012 and has worked on London Academy of Music and Dramatic Art, St Cross College in Oxford, the T1 Argent Building in London and Jesus College in Cambridge.