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Minneapolis Public Library
A new landmark in the city of Minneapolis, Minnesota was roofed and waterproofed with the help of AMBE LTD. Both asphalt and gravel built-up roofs and SBS modified roof systems were used. The SBS modified roof system seen here was used for the highly publicized new green roof system.
1.
The concrete surfaces were cleaned and coated
with concrete primer in preparation for installation of the waterproofing membrane.
2. Installation of the hot rubberized asphalt on the primed concrete deck.
3. In-process installation of the waterproofing membrane.
4. Installation of the waterproofing membrane around
the elevator penthouse flashing.
5. SBS asphalt application over the waterproofing membrane.
6. Drain and drain screens after the installation of the insulation and drainage mat.
7. AMBE LTD. performed probe tests on each day’s work - testing the roof system for proper application of systems and materials.
8. All roof drains were blocked and the roof was flooded with water until an average of three inches was achieved.
9. A minimum of three inches of water remained on the roof for at least seventy-two hours. Upon completion of the water test, water was not observed on the interior of the building.
10. Extruded polystyrene insulation was then installed.
11. Close-up view of the drainage mat which was installed over the extruded polystyrene insulation.
12. Paver installation set on spacers over the drainage mat.
13. Stainless steel metal used as an edge detail for the concrete pavers and growing medium.
14. The concrete pavers were cut to fit around the tie-off supports.
15. In-process installation of the irrigation system.
16. Roof foam insulation and plastics pipe holders were used to mount the irrigation system to the roof drainage mat.
17. Dirt and erosion fabric installed over the irrigation system.
18. Overview of the erosion fabric during installation.
19. The irrigation system was checked after the application of dirt and was found to be operating correctly.
20. Preparation of plants for installation.
21. Planting in process
22. Planting in process
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