B08_Attachment_3_-_Specifications_-_Demolition.pdf
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- Attached to
- KLGO PANTHEON/RED FRONT ROOF RECOVER
- Solicitation number
- 140P9726R0004
About this file
This document is Exhibit B, a visual specification attachment for federal contract KLGO 331433A (April 2026) regarding roofing work at the Pantheon Saloon and Red Front buildings. The exhibit consists of annotated aerial photographs and detailed descriptions of work to be performed by the National Park Service (NPS) in preparation for contractor work.
NPS will complete the following preparatory work prior to contractor arrival: remove existing rolled roofing from the Pantheon and Elevator Shaft roofs; remove and replace parapet wall caps (indicated by red lines on the drawings); remove an unused chimney on the Red Front roof and recover the roof penetration with matching sheathing; repair or replace sheathing and joists on the Pantheon roof where water infiltration damage has occurred near a previously repaired scupper flashing. The contractor's work scope includes recovering all grey roofing areas between the red lines with new polyvinyl chloride (PVC) membrane roofing material. The existing rolled roofing on the Red Front will remain in place and be recovered with the new PVC material. Approximate locations of roof fall protection anchors are marked with blue squares on the drawings. A section of rolled roofing on the Pantheon roof near the cedar shingles will be addressed in a future project when those shingles are replaced.
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Text version
Pantheon Saloon/Red Front Roofs – Parapet Caps and Roofing to be removed by NPS
KLGO 331433A
April, 2026 Exhibit B
Red lines indicate parapet wall caps to be removed and replaced by NPS Preservation Crew. All grey roofing between the red lines is what will be recovered with new polyvinylchloride (PVC) membrane roofing material. NPS will remove existing rolled roofing on the Pantheon and Elevator Shaft roofs.
Existing rolled roofing on the Red Front will remain and be recovered. Chimney (Indicated by large red arrow) on the red front roof is no longer used since the conversion to heat pumps and will be removed by
NPS Day labor and the roof penetration recovered with matching sheathing to match existing. Blue Squares are approximate locations of roof fall protection anchors.
Existing Rolled Roofing on Pantheon and Elevator Shaft to be removed by NPS
Existing Roofing on Red Front to remain.
Red box indicates area of Pantheon roof known to have sheathing damage from water infiltration caused by the leaking scupper (indicated by the arrow) flashing that was repaired during the 2023 exterior finishes project. On going leak into the workroom during certain weather conditions is near the chimney.
The black “Henry’s Roof Patching” has been our attempt to mitigate the leak. NPS will remove entirety of existing roofing on Pantheon Roof and repair/replace sheathing and joists necessary prior to contractor arrival.
File details come from the government source that posted it. Updated .