Fixed frame: High density PP material, fixed to lab roof with M12 expansion screw.

固定架：高密度PP材质，用m 12膨胀螺钉固定于实验室屋顶。

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The attic extension respects the existing roof geometry with the exception of adding a new dormer window joined with a terrace in front which creates a spatial expansion.

阁楼扩建部分遵照了现有的屋顶几何形状，只新加了一个前面带有窗台的屋顶窗，创造了一种空间拓展感。

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Fixed frame: 304 stainless steel, fixed to lab roof with M12 expansion screw.

固定架：304不锈钢材质，用m 12膨胀螺钉固定于实验室屋顶。

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Last year, activists from Plane Stupid occupied the roof for three hours in protest against Heathrow expansion, resulting in five activists being found guilty of trespass.

BBC: Parliament rooftop protest ends