Downspout Drainage

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Why Downspout Drainage Is Necessary?

Downspout drainage are designed to channel rain runoff from roof away from foundation and living areas.
Rain runoff from roof, roof gutters, and down spouts can pour hundreds of gallons of water to downspout drainage.
Downspout drainage requires 1/4” per foot sloping to effectively drain rain runoff to discharge location.
Defective downspout drainage will saturate the below grade soil against your foundation creating hydrostatic pressure.
Saturated soil conditions at foundation create high moisture levels in crawl spaces resulting in mold conditions.

Downspout drainage prevents:

Saturated soil conditions.
Foundation leaks.
Basement leaks.
Crawl space leaks.

Downspout drainage questions? Call 1-888-650-0111

Provide written warranties for downspout drainage.
Licensed certified downspout drainage technicians.
Licensed certified french drains technicians.
California B744545 general contractor license.

Existing downspout drainage leaking into residence

Existing Downspout Drainage Leaking Into Residence

Downspout drain leaking into residence requires removal of existing concrete step to replace drain pipe.
Why existing flex drain not recommended for downspout drainage.
Flex drains are prone to cracking.
Flex drains difficult to correctly slope at 1/4” per foot for effective drainage.
Flex drain extending above walkway surface is not correct, drains must be flush with walkway surface.
Rigid downspout drains prevents deflection required to provide correct sloping.

Downspout drainage installed under steps

Downspout Drainage Installed Under Steps

Leaks to existing downspout drainage causing water damage in residence.
Foundation, crawl space leaks elevate interior moisture, humidity levels creating indoor mold growth.
Schedule 40 PVC drainage pipes allow for tighter fitting connections preventing root penetrations and clogging.
Crack resistant schedule 40 PVC drainage pipe recommended for below grade installations.
Drain pipe on right connected to a french drain positioned at footing elevation in garage.

Flagstone step installation over drainage pipe

Flagstone Step Installation Over Drainage Pipe

Downspout drainage transition installed flush with flagstone step.
Flush drainage installation allows for easy clean out access at downspout connection.
Concealed flush drainage installation creates streamline appearance.

Downspout drainage installed under flagstone

Downspout Drainage Installed Under Flagstone

Drainage pipe sloped 1/4” per ft. to allow for gravity of water to discharge location.

Questions about downspout drainage? Call 1-888-650-0111.

Downspout drainage leaking under walkway

Downspout Drainage Leaking Under Walkway

Defective downspout drainage leaking under walkway creating water damage and mold to residence.
Flex drains are prone to cracking causing below grade leaks and foundation / crawl space leaks.

Separate drain pipe for downspout

Separate Drain Pipe For Downspout

High levels of roof runoff require separate drain pipe for downspout drainage.
French drains and downspout drainage cannot be combined.
Heavy rain storms will overwhelm combined drainage system preventing adequate systems drainage.
Center pipe, french drains wrapped in filter fabric requires separate discharge location.
Drain pipe on right connects to driveway grate drain and requires separate discharge location.

Note: Heavy rains would overwhelm drainage system if drainage were combined.

Downspout drainage clogged with sediment

Downspout Drainage Clogged With Sediment

Existing downspout drainage clogged with sediment preventing roof water drainage in heavy rain storms.
Clogged drainage pipes causes roof rain water to saturate soil against foundation creating elevated moisture levels in crawl space mold and below grade foundations.

Defective drainage three story condo complex

Defective Drainage Three Story Condo Complex

Roots clogging downspout drain pipes restricting drainage and creating back ups during rain storms.
Expanding root system in downspout drainage cracking drain pipe connections allowing below grade drain water leaks.

Defective downspout drainage

Defective Downspout Drainage

Excavated downspout drain pipe with french drains riser pipe clogged with roots.
Warning: Only solid pipe is allowed for downspout drainage, perforated "french drains" allow root penetration into pipes.
Warning: Existing schedule 35 drain pipe are prone to cracking at connections allowing roots and sediment to clog drain pipes.
Warning: Defective and clogged drainage pipes will result in back up failures when heavy rains occur.

Drainage Questions? Call 1-888-650-0111.

Replacement downspout drainage

Replacement Downspout Drainage

Crack resistant schedule 40 PVC replacement downspout drainage connected to street curb cores.
Pipe connections sealed to prevent roots and sediment from entering drainage pipes.

Downspout drainage connected to street curb core

Downspout Drainage connected To Street Curb Cores

Building codes allow downspout drainage discharging to street curb cores.
Warning: French drains "pictured right" and downspout drainage can not be combined and require separate discharge locations.
Downspout drain connected to pipe under sidewalk to street curb core.

Curb cores for downspout drainage

Curb Cores For Downspout Drainage

Three floor condo complex downspout drainage discharging to street cores.
Note: Cores at base of planter walls discharge ground water for planter french drains.