# Rooftop Riser Shaft Detailing ### Issue Image: ![[Pasted image 20250123173443.png]] ## Issue Description: - Services at roof levels that are not fire-rated can compromise fire compartmentation and allow fire or smoke to spread through roof penetrations. - To prevent this, - Extend The Fire Rated Shaft up above the concrete roof top. - Fire Rate Penetrations into the Shaft. ## Actions to Prevent this Issue: - [ ] Architect shall detail a fire rated shaft extending approximately 1 metre above the finished roof height, and detail fire-rate penetrations into that shaft. ## Source