definition
strict definition
mixed materials
A roof-supporting framework combining different materials, each forming a significant part of the roof structure.
A mixed material roof frame is an underlying support framework for a roof built from a combination of multiple different materials, each forming a significant part of the roof structure.
Several materials must contribute significantly to the support structure. A minor accessory of another material does not by itself establish the mixed-material form.
The combination concerns the frame. A frame of one material beneath a covering of another is not mixed merely because those separate roof parts differ.
Related definitions
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aluminum
A roof-supporting framework made of aluminum beams, poles, sheets, or other aluminum elements. -
bamboo
A roof-supporting framework made of bamboo sticks, rafts, or other bamboo elements. -
iron
A roof-supporting framework made of iron beams, poles, sheets, or other iron elements. -
precast concrete
A roof-supporting framework made of precast concrete beams, slabs, or other precast concrete elements. -
reinforced concrete
A roof-supporting framework made of reinforced concrete beams, slabs, or other reinforced concrete elements. -
steel
A roof-supporting framework made of steel beams, poles, sheets, or other steel structural elements. -
wood
A roof-supporting framework made of wooden beams, poles, boards, slats, or other forms of wood.