Advanced Vegetative Roof Systems

The New Standard In Eco-roof Technology

Mulitlayer System

Tray System

Interlocking Tray System Mulitlayer System

AVRS®

Thedifferenceinasustainableglobalenvironment isthedifferenceincontributingtechnologies!

AVRS® Multilayer System (patent pending)

Features and benefits of the AVRS® Multilayer system:

• UsedasastormwatermanagementBestManagementPractice(BMP)forLowImpactDevelopment(LID)applications.Detainspeakflowstoreducestreamerosionorcombinedseweroverflows(CSOs)Also,retainsstormwaterforevapotranspirationtoreducetherunoffvolume.

• Thewaterretentionlayerprovidesformechanicalanchoringofplantsroots,moistureretentionforplantavailablewater,and high porosity to allow root areation

• Allowhydrationofplants,preventrootrot,allowairflowunderand up through the multilayer system

• Allowphyto-remediation(removalofcontaminates)from the soil

• Protecttherootswitharootbarrierunderthesystemandabovethewaterproofmembrane

• Allowsgrowingmediumofgreaterthan6”indepth

• Consistsofmultiplelayersforoptimumplanthealth

Anextensiveecoroofisdesignedtoprovidemaximumgroundcover, water retention, erosion resistance, and evapo-transpirationofmoisture.Extensivegreenroofsusuallyuseplantswithfoliagefrom2to18inchesandfrom2to6inches ofgrowingmedia.

Anintensivegreenroofisintendedtobemoreofanaturallandscape.Intensivegreenroofsmayuseplantswithfoliagefrom1to6feetandmayrequireseveralinchesorfeetofgrowingmediadepth.Thisplantingoptioniswell-suitedforlargeroofsthatrequireexpansivecoverage.Intensiveplantingoptionsallowformonolithiccoverageovertheentireroof,andcan be installed easily around curved area, low-slope and other custom shapes.

TechnologicalBenefitsofGreenRoofTrayandMultilayerSystemsThiscomparisonisbasedongeneralfeaturesoftypeoftechnologyandnotspecifictoanyonetechnologyasthereare,inmanycases,substantialdifferenceswithineachtechnology.Thiscomparisonisnotintendedtodemonstratetheonetechnologyisbetterthantheother,rathertodemonstratethateachonehasadvantagesovertheotherandshouldbeusedwhereappropriate.Infact,inmanycasecombinationsoftraysandmultilayersystemprovidethebestsolution.

Features and benefits of the AVRS® Tray system:

• UsedasastormwatermanagementBestManagementPractice(BMP)forLowImpactDevelopment(LID)applications.Detainspeakflowstoreducestreamerosionorcombinedseweroverflows(CSOs)Also,retainsstormwaterforevapotranspirationtoreducetherunoffvolume.

• Actsasathermalblankettothebuilding’sroof,makingsolar,heatingandairconditionersmoreefficient,resultinginasmuchas20%energycostssavings.

• Shadestheroofandhelpsdecreaseambientairtemperaturereducingtheoverallheatislandeffectincities.

• Designedtoencourageproperbioandphyto-remediationofstormwaterandairpollutants.

• CitynoisesareattenuatedbytheaggregateadditionofAVRSTraysystemsthroughout a city.

• ProtectstherooffromUVradiation,freeze-thawcycling,heatstress,winddamage,andtemperaturefluctuations.Thisreducesmaintenancecostswhileextendedthelifeoftheroof(2.5timesisachievable),increasingpropertyvalue.

• Enhancesthevisualexperienceofmedical,hospitality,andrecreationfacilityclients,employees, and visitors.

Alloftheseitemsandmorecontributefrom6to14LEEDpointsforsustainablebuilding structures.

AVRS® Tray System (patented: 7,603,808)

Urbandevelopmentthroughouttheworldresultsintheincreaseofimpervoussurfaces,whichincreasestormwaterrunoff,decreasesinfiltrationandevapotranspiration.Inaddition,pollutantsdepositedonthesesurfacesaretransportedintooursurfacewaters,degradingwaterqualityandthenaturalhabitat.

Forbothnewconstructionandretrofitting,thegreenroofproductsprovidedbyColumbiaGreenweredevelopedbyroofersandenvironmentalengineerstomeetstringentroofingrequirementswhileprovidingahighdegreeofenvironmentalbenefits.

OurturnkeysolutionsmeetorexceedallguidelinesforGreen-Roofs.Thesystemsareeasytoinstall,manytimes30%fasterthanothersystems.Alongwitheasy,lowcostmaintnenace,theAVRSsystemarethemarketsbestchoice.

ColumbiaGreen’sAVRSTraysystemmeetsorexceedsallguidelinesforGreen-Roofs.TheTraysystemisdurable,secure,easytoinstallandmaintain.Thissystemcanbeinstalled30%fasterandwithfewerstaffthanmostmultilayeredsystems.Themarketsbestchoice–deliveringahighqualitylowercostofownership.

“This is the fifth garden roof Westech has been involved with. This is the first one we have had the whole system (waterproofing, irrigation,soil, plants and maintenance) I have casually monitored all projects and can honestly say this is the only one thriving. The Columbia Green tray system was the key to success with this installation.”

- Larry Hunt, President

Stormwater Management

Design Installation Features Maintenance

Product Retention Detention Min height Maxheight Min weight Shaping Anchoring Tiles Cuttings Plugs Irrigation Trim Routine Repairs

AVRS® Tray √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

Multilayer High Profile

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

Multilayer Low Profile

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

Hybrid √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√=fine,√ √ = good, √ √ √ = better, √ √ √ √ = best

Inside the AVRS Solution

79 SE Taylor Street, Ste 201, Portland, OR 97214

503.327.8723 www.columbia-green.com

Advanced Vegetative Roof Systems

The systems include:

AVRS Trays • AVRSTraysaremanufacturedfrom100%recycled,100mil

high molecular weight polypropylene. Each tray utilizes an engineered, overlapping edge and removable vinyl rivets to securely join the trays – creating an integrated system.

AVRS Multilayer• AVRSmulitlayersconsistof:GeosyntheticWaterRetention

Layer, Filter Layer, Drainage Layer and Root Barrier Layer

Growth media – soil (both trays and multilayer)• Thegrowthmediaconsistsofaregionally-specific,

engineered,light-weightblendofinorganicandorganiccomponents.

Plants (both trays and multilayer)• AVRSutilizesawidevarietyofweatherresistantsucculents

to ensure healthy, attractive growth with low maintenance. USDAhardinesszoneclassificationswillberecommendedforeach installation.

Quality Assurance

TheAVRS®solutionisonlyinstalledbyColumbiaGreen-approvedandcertifiedcontractors.AVRSistobeinstalledoverhigh-qualityroofmembranesystems.Theroofsystemsmustbeinspectedandapprovedbythemembranemanufacturerpriortoinstallation.Basedonregionally-specificengineeredgrowingmedium,theAVRSTrayand/orMulitlayerweightmaybe12-26lbspersquarefootFieldMoistureCapacity(FMC).Asaresult,theownerisresponsiblefordeterminingthestructuralweightcapacityofthebuildingandroofstructurepriortoinstallingAVRS.

Scope

ColumbiaGreenAdvancedVegetativeRoofSystems(AVRS)aredesignedtobeaturn-keysolutionthatiseasilyinstalledandmaintained.Thesepatentpendingsystemsaredesignedtoprovideagreenroofsolutionwhichwillintegratewithmultipleroofingmaterialsanddeliverlong-term,economicalperformance.ColumbiaGreenwillprovideallmaterialstocompleteasuccessfulinstallationoftheAVRSGreenRoofSystem.

Tray System Details

Multilayer System Details