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Get 115mm Deep Flow Guttering Online

We keep plastic half round deepflow guttering and downpipes in black and white with speedy next day delivery for all orders placed before 12pm. We can also supply 6″ and 8″ guttering so please contact us if you require a larger size.


More Information on Deep Flow Gutters:

As a homeowner, it's important to be prepared for problems caused by heavy rainfall. The weather has become one of the leading sources of property damage in the last few years.

As a matter of fact, the last couple of years have been the wettest years on record and unfortunately, the forecast for the next seventy years predict things are going to get wetter!

These weather conditions could really take their toll on homes' exteriors. Functional gutters and downspouts can help you avoid foundation erosion, flooded basements, and other water-related issues.

The average flow rate in standard guttering is 0.9 l/s, which puts the guttering under pressure if rainfall levels continue to rise.

On the flip side, deep flow guttering has an average flow rate of 1.9 l/s, helping your home cope with the increased rainfall and protect your home from overflowing guttering, that can damage your property.

Before the next storm arrives, it's a great idea to consider how your home will tough it out, which brings us to the subject of deep flow gutters.

Deep flow is not the largest of the plastic guttering sizes. Instead it is just a little larger than the standard half round profile, and is commonly used on large domestic roofs. For industrial uses we would recommend a size from the industrial range also available on EasyMerchant.

What are Deep Flow Gutters?

A deep flow gutter system incorporates a deep round style gutter with a high flow capacity, which is perfect for regions prone to high rainfall.

Houses with steep or large roofs really benefit from deep flow guttering. The deep capacity and high flow rate enables the number of downpipes to be minimised. Black guttering is the most commonly purchased colour in this range.

Features of deep flow guttering include:

  • Both 65mm and 68mm square and round downpipes can be connected to the gutter system

  • Semi-elliptical profile

  • High capacity- perfect for large roofs

  • Durable and strong

  • Speedy, user-friendly installation

  • Fewer drainage runs and outlets

Why Choose Deep Flow Gutters?

  • Same Width, High Capacity

Deep Flow gutters are hardly any wider than normal half rounds, but approximately 20mm deeper. And while that is not more than an inch, it makes a big difference in terms of capacity.

Deep flow gutters have more than twice the flow rate of regular half rounds. But as a result of the rather small increase in the measurements of the gutter, it looks ideal for any typical domestic installation.

Although deep flow guttering also comes with the option of an extra-large 80mm downpipe, this is only necessary for steep pitched or large roofs.

Considering that the outlet is hooked up to a standard 68mm round downpipe, most homeowners prefer this option, which is perfectly fine for almost all domestic installations.

  • Various Styles for Design Enthusiasts

Obtainable in all standard colours and an eye-catching finish, more and more property owners are choosing deep flow guttering.

  • Right Gutter Capacity in High Precipitation Areas

Climate conditions in the UK are becoming extreme. The floods experienced this year were unexpected, and many gutter installations failed because of the high volume of water flowing off of the roof and lack of maintenance.

Homes fitted with properly maintained deep flow gutters will certainly be well prepared to handle high volumes of rainfall if history repeats itself.

Deep Flow Gutters FAQs

Why does deep flow use the same size downpipe as half rounds?

The size of your down pipe isn’t really a factor when determining which gutter type to install, considering that all down pipes have a higher capacity than the gutters to which they connect.

This is because the flow rate of the water in the pipe, with the help of the enclosed nature of the pipe and gravity, is higher than the flow rate of the gutter itself.

Does deep flow gutter need more fascia brackets than other systems?

Although deep flow has a much higher flow rate than other systems, the fascia brackets have been engineered to allow them to be spaced the same distance apart as square gutter and half round brackets - 1m apart.

Please note that this is the recommended maximum spacing - if you live in a region where heavy snowfall is a likely occurrence, reduce the distance between the brackets.

Deep flow guttering vs. standard half round guttering: which one is better for my home?

The guttering profile you should go with depends on the environmental conditions, building requirements and the type of project at hand.

For most homes standard half rounds will do, but if you’ve a steep or large roof, or living in a high precipitation area, then deep flow guttering is the ideal choice.

In spite of having a similar width, deep flow systems carry twice the volume of water compared to standard half round systems.

What is the carrying capacity of deep flow gutters?

Deep Flow Gutter capacity varies between 2.05 l/s and 5 l/s, which is approximately twice the capacity of a standard half round guttering system.

Not only is the carrying capacity of gutter systems determined by its size, but also by the position of the down pipes in relation to the gutter and the fall to which it is laid.

If needed, installing a 80mm down pipe instead of a 68mm can increase the capacity of deep flow guttering system even more. Consequently, it can cope with the flow from steep pitched or large domestic roofs.

Can I purchase deep flow gutters to install myself?

If you already have all the necessary tools and accessories and want to make deep flow gutter installation a DIY job, here is a step-by-step installation guide:

  1. Set the gutter height by laying down a straight batten on the lowest profile of the roof.

  1. Place the fascia bracket under the batten so that they’re touching and mark the screw holes.

  1. Drill pilot holes and Fix fascia brackets with countersunk screws or roundhead screws.

  1. Fix fascia brackets at 500mm centres. For the best flow rate fix to a fall of 1:600 or nominally level.

  1. Support all corner angles by installing fascia brackets at a maximum of 150mm from all sides.

  1. Before fitting together gutter joints, apply a sealant to the central grooves to both sides of the ribbed rubber gasket.

  1. Place the gutters into the fascia brackets without clipping the front down. Place the union on the back of the gutter then fix the gutter in the fascia brackets. Apply some upward pressure to the union clip, while pulling the front gutter’s edge into the union clip.

  1. Drill a pilot hole and fasten the joint union to the fascia board.

  1. Repeat stages five and six and join the gutter length to the one previously fixed. Make sure there is a 3mm expansion gap between the gutter ends.

  1. Drill a pilot hole and secure outlets to the fascia board.

Do deep flow gutters need to be cleaned?

While cleaning gutters is one of the least liked house chores, you cannot pass it up at any cost.

If you love your home and want to safeguard it from damage, you should clean your gutters at least twice annually.

If you don’t feel that you can do the task or are afraid of heights, you can always hire a professional gutter cleaning service at a reasonable cost.

However, gutter cleaning isn’t such a complicated job, and if you learn how to clean your gutters properly, you’ll save a considerable amount of money.

Order EasyMerchant’s 115mm Deep Flow Guttering Online

We keep plastic half round deep flow guttering and downpipes in white and black with quick next day delivery for all orders placed before noon. We can also supply 6″ and 8″ guttering so please contact us if you need a larger size.