8/3/2019 Canada; Recovering Rainwater - Montreal

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Precipitation (rain, hail, snow or reezingrain) is increasing in requency and intensity.As a result:

greater incidence •

loss o vegetation•

landscaping

drying out o soil•

cracking o ounda•

there is a greater risk o sewer•

backlows on the street and in

basements

there is an increase in the costs o •

disasters and insurance premiums

related to water damage

DID YOU KNOW THAT...

In Montréal

No. of days when theand over i

*30-year

average 20

8 days 22

*Source: Environment Canada, 20

ville.montreal.qc.ca/environnement

Would you like information to select thetechniques and equipment best suited to yourenvironment?

Contact your Éco-quartier or an environmentalorganization in your area.

There you will be able to obtain advice or get areferral to a specialized resource.

Faced withclimate change

RecOveRINg

RAINWATeR

Direction de l’eau

Direction del’environnement etdu développement

durable

Faced with clim

 Year ater year, the Maected by climate ch

The summers tend to bheat waves more reqspells increase. Such sittoward worsening alreaincluding:

Under Bylaw 2008-47 on

water purifcation, issued by the

Communauté métropolitaine de

Montréal

“When drainage water rom roos 

is collected by a gutter system

[...], this water must be directed 

onto the surace o the soil, at 

least 1.5 metres rom a building,

while avoiding infltration toward 

any oundation drain.“ 

 

   D

   e   s   i   g   n  :   i   n   c  u   b   e   s   t  u   d   i   o .   c

   a

Direction de l’eau

Direction del’environnement etdu développement

durable

   J  u   l  y   2   0   0   9

This project is fnanced by the G reen Fund,

within Action 2.1 o the 2006-2012 Action Plan

on Climate Change (APCC).

Printed on FSC-certifed paper

The suggestions in this pamphlet are o a general nature and 

may not suit all buildings. Since each building has its own

specifc characteristics, a proessional should be consulted in

order to make sure that any o the 

suggested methods is appropriate.

This project is fnanced by the G reen Fund,

within Action 2.1 o the 2006-2012 Action Plan

on Climate Change (APCC).

Printed on FSC-certifed paper

The suggestions in this pamphlet are o a general nature and 

may not suit all buildings. Since each building has its own

specifc characteristics, a proessional should be consulted in

order to make sure that any o the 

suggested methods is appropriate.

   D

   e   s   i   g   n  :   i   n   c  u   b   e   s   t  u   d   i   o .   c

   a

8/3/2019 Canada; Recovering Rainwater - Montreal

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A gutter equipped with a simple, inexpensivedevice that directs the rainwater toward the lawn,the vegetable garden, the landscaping or treeshelps hydrate the soil and better preserve thevegetation in dry periods.

A downspout extender or sel-coiling diverter, apercolating well, a drainage trench… These aresome o the many ways o redirecting the waterrom the roo to infltrate the soil. Just makesure to direct the water at least 1.5 metres romyour building oundation, without doing anythingdetrimental to your neighbours.

How can you do more?Grow a rain garden.I your grounds are suitable or a rain garden,consider growing a rain garden. Select plants thatlike to have their “eet in the water”.

TO PReSeRve

YOUR

LANDScAPINgStoring rainwater in reservoirs helps build up areserve o unchlorinated water, ideal or wateringthe garden and plants, in addition to savingdrinking water.

Place your barrel at a certain height in order totake advantage o the eect o gravity whenwatering. “Ready-to-install” equipment isavailable in hardware stores.

TO HAve A

ReSeRve OF

QUALITY WATeR

In summer, plants keep wpreventing heat build-upalling leaves help store

Plants also contribute torereshing the air.

A vegetation barrier maythe outside surace mateby growing climbing plaa ew inches rom the w

Climbing plants on southtraditional house may cuair conditioning costs (L2007).

PReveNT

HeAT STRO

gO gReeN

Nearly 50% o Montréal buildings are constructedon clay soil. Champlain clay contracts whenit dries. The stress then placed on buildingoundations may cause cracks in the building. Theaverage cost o a repair is $17,000. This problemmight reoccur rom time to time with the globalwarming trend. Take precautions. Use rainwaterto keep the soil moist.

TO PROTecT

THe FOUNDATION

OF YOUR BUILDINg

RecOveRINg RAINWATeR