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INTERIOR STRUCTURE 109▲ 6.8 Westminster Lodge, Hooke Park, Dorset, England, EdwardCullinan Architects, 1996. A grillage of roundwood beams spans themain space.▲ 6.9 Building Industry School, Hamm, Germany, Heger HegerSchlieff, 1996. Lamella timber vaults span the workshop.Exposed timber structure also enriches the interior surfaces of the nexttwo buildings. As at Westminster Lodge, where structural form andmateriality reflect a commitment to ecological sustainability, the timberroofs of the Building Industry School, Hamm, also possess a similar pedagogicalvalue (Fig. 6.9). Seven timber lamella vaults that span betweenglue-laminated beams, roof the workshops. Four of the repeated vaultscover an interior hall-like volume while the other three shelter outdooractivities. Structure contributes a distinctive and attractive ceiling patternto all the spaces.Saint Massimiliano Kolbe church, Varese, exemplifies another buildingwith aesthetically pleasing interior timber structure. Not only is thewhite hemispherical form in a northern Italian suburban setting unexpected,but so is its interior consisting of timber lining over a triangulatedglue-laminated timber dome (Fig. 6.10). The primary triangulatingribs, the horizontal members between them and the lining are all stainedwhite. The structural members, with their curved profiles, are sympatheticto the enclosing spherical geometry of the main congregationalspace and modulate its interior surface. Relative to the size of the enclosedvolume, the small member sizes are a reminder of the structural efficiencyof a braced dome.Most of the connections between the timber members are concealed,but the architect has chosen to celebrate the joints between primarymembers (Fig. 6.11). The detail possesses similar qualities to Fay Jones’much admired Thorncrown Chapel connections where light passesthrough the timber joints. 4 Although the exterior cladding prohibits any