Fire alarm layout for a 22-story tower in Doha, incl. basements, typical floors and the roof. We’ve included riser diagrams, battery calcs, elevator sequences, and NFPA 72 notes. Designed for a high-rise residential building in Al-Dafna. مخططات نظام إنذار الحريق لمبنى سكني بارتفاع 22 طابقاً في الدوحة، قطر.