Our ecoroofs help absorb rainfall, cool the air around the building and provide habitat to birds and pollinators. Learn how it was put together, layer by layer, replacing sections of conventional roof at the District office.
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- Tar paper is the first layer to go on the plywood roof deck
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- Then the fiberboard goes down next
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- The roof is swept carefully to remove any grit that could damage the next layer, the waterproof membrane
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- Cutting the waterproof membrane
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- Hot welding the membrane keeps it water tight!
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- A layer of felt protects the waterproof membrane
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- The soil media to be added to the roof
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- Carrying soil up to the roof
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- Spreading the soil over the ecoroof-to-be
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- Irrigation is set up next
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- A layer of jute holds everything in place
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- Spreading the sedum cuttings
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- The plants are beginning to grow in
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- The plants are really coming in, making for a much more colorful, stormwater-absorbing roof!
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- The plants are completely established at this point
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- Another shot of the same side of the roof, and a water feature we normally keep filled for birds and insects
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- Another shot of the Southeast side