Perimeter Drainage Building Codes & Rules

- Perimeter Drainage Tools™ simplifies the National Construction Code (NCC) with interactive graphics, including deemed to comply & best practices.

Sleeved Dowel to Engineer's Detail

Fall

1:60

Fall

- copy

1:60

- copy

Drip Groove

≥ 1:100

Fall

- copy

Drain Pipe

Sealant with Backing Rod

Floor Waste

Sump, Inlet Pit, Grate or Cage installed to minimise debris blockage
Install level or below finished floor level

Fulgo Drain

Basement Perimeter Wall

Intermediate Floor Slab

Foam Joint

Downpipes

Compatible materials
Securely attached
Spacing depending on material
As close as possible to supporting structure
Clearance from any electrical, gas pipes & pipeworks
Access provided
Clear of any structural elements

Metal or PVC Pipes PROS & CONS

NCC 2022 V1

Downpipes SUPPORT

NCC 2022 V2

All Building Classes

NCC 2022 F1D3, H2D2, H2D6, & Part 7.4

[2019 F1.1, 3.1.3.0 - 3.1.3.1, 3.5.1 - 3.5.5]

May 2023

Downpipes INSTALLATION

NCC 2022 V1

All Building Classes

NCC 2022 F1D3, H2D2, H2D6, & Part 7.4

[2019 F1.1, 3.1.3.0 - 3.1.3.1, 3.5.1 - 3.5.5]

May 2023

Water & Air TESTING

NCC 2022 V1

All Building Classes

NCC 2022 F1D3, H2D2, H2D6, & Part 7.4

[2019 F1.1, 3.1.3.0 - 3.1.3.1, 3.5.1 - 3.5.5]

May 2023

Compatible materials
Securely attached
Spacing depending on material
As close as possible to supporting structure
Clearance from any electrical, gas pipes & pipeworks
Access provided
Clear of any structural elements

Spoon Drain

Substrate

Smooth, clean, dry & dust free surface
Class 2 concrete finish preferred

Substrate FALLS

NCC 2022 V1

All Building Classes

NCC 2022 F2D2, S26C3, 10.2.9, & 10.2.12 [2019 F1.7]

May 2023

Substrate PREPARATION

NCC 2022 V1

All Building Classes

NCC 2022 F2D2, S26C3, & 10.2.9 [2019 F1.7]

May 2023

Substrate PREPARATION

NCC 2022 V1

Smooth, clean, dry & dust free surface
Class 2 concrete finish preferred