1. Waterproofing System Waterproofing System Roof Garden

2. Reduces urban heat island effects Storm water runoff management Adds valuable/useable space providing economic benefits Energy efficiency year-round Could earn LEED points Reduces urban heat island effects Storm water runoff management Adds valuable/useable space providing economic benefits Energy efficiency year-round Could earn LEED points Roof Garden – Today’s Advantages

3. Roof Gardens Kaiser Resources Vancouver, BC After Kaiser Resources Vancouver, BC After Before Create high value, usable space

4. Rockefeller Center – 1933 Roof Gardens Enhances view from neighboring buildings

5. Select highly puncture resistant membrane Establish redundancy – Splice overlayment Provide positive drainage at membrane level Select highly puncture resistant membrane Establish redundancy – Splice overlayment Provide positive drainage at membrane level Roof Garden - Design Principles For Effective Waterproofing Systems:

6. Ensure proper system protection Incorporate drainage layer/root barrier Utilize Moisture Retention Mat (where applicable) Ensure proper system protection Incorporate drainage layer/root barrier Utilize Moisture Retention Mat (where applicable) Roof Garden - Design Principles

7. Ultra-Extensive/Shallow – < 4” deep Extensive/Medium – 4” - 8” deep Intensive/Deep – > 8” deep Ultra-Extensive/Shallow – < 4” deep Extensive/Medium – 4” - 8” deep Intensive/Deep – > 8” deep Roof Garden Assembly Types

8. Shallow Assembly  Growth Media  Moisture Retention Mat Drainage Board  Protection Fabric Membrane ( Adhered )  Dens-Deck  Approved Insulation  Substrate  Growth Media  Moisture Retention Mat Drainage Board  Protection Fabric Membrane ( Adhered )  Dens-Deck  Approved Insulation  Substrate

9. Ultra-Extensive/Shallow Assembly Growth Media – “Sedum”

10. Ultra-Extensive/Shallow Assembly

11. Medium Assembly  Growth Media  Moisture Retention Mat Drainage Board  Root Barrier Protection Fabric  Membrane ( Adhered )  Dens-Deck  Approved Insulation  Substrate  Growth Media  Moisture Retention Mat Drainage Board  Root Barrier Protection Fabric  Membrane ( Adhered )  Dens-Deck  Approved Insulation  Substrate

12. Roof Garden – Medium Assembly

13. Deep Assembly  Growth Media  Protection Fabric Drainage Gravel  Protection Fabric Root Barrier  Extruded Polystyrene  Membrane ( Adhered )  Dens-Deck  Approved Insulation  Growth Media  Protection Fabric Drainage Gravel  Protection Fabric Root Barrier  Extruded Polystyrene  Membrane ( Adhered )  Dens-Deck  Approved Insulation

14. Intensive Assembly/Deep

15. Protection/Drainage Components Protection Fabric Drainage Boards Moisture Retention Mat Extruded Polystyrene Insulation Root Barrier Protection Fabric Drainage Boards Moisture Retention Mat Extruded Polystyrene Insulation Root Barrier In addition to the waterproofing material, other components must be utilized to ensure proper function:

16. Planting Media Planting media should meet the following criteria: Not include silt that can clog drainage fabric Provide permanent aeration Provide adequate drainage Supply or absorb water and nutrients Retain its original volume Planting media should meet the following criteria: Not include silt that can clog drainage fabric Provide permanent aeration Provide adequate drainage Supply or absorb water and nutrients Retain its original volume

17. Planting Media Planting Media Mix: A mix suitable for most roof garden applications should be similar in content and percentage or composed of –45% graded sand ( with no fines ) –45% expanded shale –10% humus ( pine bark ) Planting Media Mix: A mix suitable for most roof garden applications should be similar in content and percentage or composed of –45% graded sand ( with no fines ) –45% expanded shale –10% humus ( pine bark )

18. Weights of Plant Media lbs/ft 3 Weights of Plant Media lbs/ft 3 MaterialDryDamp Fine sand Fine sand90120 Cedar shavings with Fertilizer Cedar shavings with Fertilizer9.2513 Peat moss Peat moss9.610.3 Redwood compost and shaving Redwood compost and shaving14.822.2 Fir and pine bark humus Fir and pine bark humus22.233.3 Perlite Perlite6.532.4

19. Waterproofing System Waterproofing System Roof Garden