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Difference Between Retention and Detention and How this Relates to Green Roofs [Webinar]

June 07, 2023
12:00 PM - 1:00 PM
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Wednesday Lunch & Learns - Live Webinars with Torti Gallas + Partners
Wednesday Lunch & Learns – Live Webinars with Torti Gallas + Partners
AIAPV has partnered with Torti Gallas + Partners to offer a limited number of slots for live-webinar online-access of the firm's Lunch & Learn CEU events on one Wednesday each month. AIAPV appreciates Torti Gallas' support in enabling the chapter to provide this valuable benefit for the convenience of members unable to get to our educational events in person.
The Difference Between Retention and Detention and How This Relates To Green Roofs
Please note this course was offered to our members in June 2022. If you participated last year, attending the presentation again does not confer continuing education credit.
Course Description:
This course outlines the difference between retention and detention, and how this relates to green roofs.
Through a restrictive drainage layer, the (non-proprietary) Purple-Roof Concept achieves retention and detention on rooftop space. Under pedestal pavers, stone ballast or green roof areas, the friction-based drainage layer slows the flow of water as it leaves the roof, delaying the peak outflow rate of the design storm. An outflow rate is engineered by designing the relevant green roof components to ensure all stormwater parameters/requirements are met. With rooftop space comprising 40% of urban areas, maximizing such areas allow one to efficiently manage stormwater at its highest point—the roof!
Short Purple-Roof synopsis: https://www.youtube.com/watch?v=B-P5prVl9Yk
Purple-Roof Introduction: https://www.youtube.com/watch?v=YJZEYP_hi3A
Economic Case Studies: https://www.youtube.com/watch?v=BVkDxALjLpo
1 LU
Learning Objectives:
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Correctly define the terms 'retention' and 'detention'.
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Understand how green roofs provide retention.
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Understand the benefits of detention.
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Understand how green roofs can provide detention.
Presenter: Callum Gowar, Mid-Atlantic Sales Manager – Sempergreen US; P 540.399.5055 | Mobile 202.494.0361 | [email protected]
Provider: Moerings USA, LLC; Provider #404109118; Course #GRS-102
AIA credits and certificates will be processed by Moerings USA.
Please note this course was offered to our members in June 2022. If you participated last year, attending the presentation again does not confer continuing education credit.
Registrants will receive the Zoom login credentials with registration confirmation and via email prior to the webinar.
Tickets
$10.00 AIAPV Member - Difference Between Retention and Detention in Green Roofs
$10.00 Other AIA Member - Difference Between Retention and Detention in Green Roofs
$15.00 Non-Member - Difference Between Retention and Detention in Green Roofs

