The 350m long and 40.000m² tall building has great big inward-curving disks, 
intersections and cantilevered elements. The building is extremely energy efficient and obtained a LEED Gold certification.
The disks cast long protective shadows when the sun hits the building from east or west. The few windows the building has are set back so that they’re always out of reach of the sun. The interior spaces can be air conditioned more economically as a result.

What remains hidden to the naked eye is the insulation. 
FOAMGLAS® insulation can easily adapt to the ‘desert rose shape’ of the roof and provide a complete water and vapour seal.

Insulation was done with 100mm FOAMGLAS® BOARD T4+ and a top layer of 100mm FOAMGLAS® READY BOARD T4+. FOAMGLAS® BOARDs are  glued on the steel deck substrate and to each other with PC11.

A bituminous waterproofing membrane was torched over the FOAMGLAS® READY BOARD T4+. Over the waterproofing membrane a concrete layer is poured on which they installed the finishing stones.

In a specific area of the roof a dome was made with FOAMGLAS®.
Due to the substructure in steel deck it was not possible to make the dome with screed or concrete because of the too high additional weight.
That’s why FOAMGLAS® was chosen to build the dome. In that dome area the FOAMGLAS® was installed in stairs in different layer of FOAMGLAS® and afterwards the dome was sanded out of this ‘pyramid’ of FOAMGLAS®.

In the walls insulation was done with FOAMGLAS® T3+ glued with PC56.

The history of Qatar is now protected thanks to a Compact FOAMGLAS® composition.