What built-up roofing means
Built-up roofing, often called BUR, uses multiple layers of reinforcement and bitumen as part of a roofing assembly. Surfacing can vary. Able Roofing lists BUR tar-and-gravel and cap-sheet roofing among its services. The appropriate assembly depends on the building and the condition of the existing roof.
Evaluate the whole assembly
A surface view does not always reveal the condition of insulation or the deck below. Review known leaks, past coatings, previous recoveries and drainage behavior. If moisture or deterioration is suspected, discuss what further investigation is needed before deciding on repair, recovery or removal.
Drainage and transitions need a clear scope
Perimeters, penetrations, roof-to-wall details and drain connections can be as important as the broad roof surface. Ask how the proposal addresses these areas and whether changes are needed to improve drainage. Repeated water collection should have an identified cause, not simply another layer of material over it.
Compare built-up roofing with TPO
BUR and TPO are different assemblies with different installation and repair approaches. Compare suitability, existing conditions, structure, access and maintenance requirements. Ask for the complete scope of each option. A comparison based only on the number of layers or a single material price can be misleading.
Plan occupied-building work
Discuss access, material handling, work methods, tenant communication and any site-specific restrictions before scheduling. Confirm the method proposed and how it suits your building. Keep installation details and maintenance recommendations with the building’s roofing records.
Plan your next step
Bring your questions, existing roof information and priorities to the conversation. Call 415-786-7308 for a free roofing estimate.