Pavingexpert Search
	Threshold Drainage

On This Page... Introduction Aco Step-Drain Hepworth Threshold

Related Pages Drainage Main Page Linear Channels Drive Drain All about DPCs

Level threshold interceptor drainage solutions Traditionally, paving is laid at a level that is at least 150mm below DPC level, which is usually equivalent to internal floor level. However, Document M of the Building Regulations requires level threshold access to be provided to all new buildings, and a growing number of homeowners like the idea of having a step-free level walkthrough from lounger/conservatory to patio. This can present a problem at thresholds: how to provide a flat access without running the risk of surface water finding its way into the property? While not always necessary, the use of threshold interceptor drainage is a simple solution that will protect property without compromising the aesthetics. The following photos and diagrams illustrate just a few of the more popular solutions....
Paving under sill	Paving laid with extra fall away from doorway
Using linear channel option

Using Aco Step Drain	StepDrain installed (ignore crappy blockwork)
StepDrain showing grating and outlet connection

Using Hepworth Threshold Drain

Hepworth Threshold Drain