SKYDB Building database

Tall buildings worldwide, with heights, construction status and the companies involved.

Rankings of tall buildings

Tall Building Markets

Tall buildings, tracked.

SKYDB is collecting verifiable information about buildings.

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.