How to install guttering on a shed roof

When building a shed, it is important to have functional guttering systems in order to maximise the lifespan of the shed. When guttering is installed, it prevents water from running down the sides of a building, which can reduce the strength and stability of the shed over time.  Additionally, installing guttering on a shed roof will provide a method of rainwater collection which can then be diverted into a water butt or water storage tank for storage and future use in gardening applications.

Here at Drainage Superstore we have a wide range of guttering products to choose from. For sheds, we’d recommend looking at plastic guttering, as this is the most cost-effective form of guttering and is also easy to install. If you have any questions about the best guttering for your project, our team will be more than happy to offer product recommendations and advice.

How to fit guttering to a shed

Pre-installation preparation

When installing guttering on your shed, it is important to first identify where you’d like the rainwater to drain off to. In some cases, there are no nearby established drain systems, in which case you’ll be looking to either direct your rainwater into a water butt, or alternatively drain onto ground that is sloping away from the shed and any nearby buildings. If none of these options are suitable, ensure your downspout extends around a metre out from the shed when you’ve finished installing the guttering to prevent surface water pooling.

Identify the direction of fall

Before starting the installation process, it is important to take a look at the shed to see if it slopes down in any place – water flows downhill, so use the angle to decide in which direction you create the fall – just place a spirit level on the side of the shed to identify if it slopes in a specific direction.
Next, you need to decide whether you’re happy installing the guttering directly onto the shed wall. If not, just install a small fascia board around the edge of the roof, and fix the guttering onto this.

Mark the guttering position

Now take a length of string, and mark out where the gutter will sit on the shed – don’t forget to add in a slight fall towards where the downpipe will be located. Mark the string’s position on the fascia or wall at intervals of a maximum of 3 feet, which will be where gutter brackets will be installed.

Install the drain outlet

The next step is to install the drain outlet, where the downpipe will be located. To do this, mark the screw locations of the drain outlet or the brackets that will hold the drain outlet, and drill pilot holes, before attaching the drain outlet to the fascia or shed.

Install gutter brackets

Once the drain outlet has been installed, its time to install the support brackets for the rest of the guttering. Joint brackets must be installed where two pieces of guttering meet, to create a watertight seal, and you may require extra support brackets to ensure the gutter remains secure and level – these support brackets should be installed at the 3ft intervals marked earlier. To install brackets, mark the screw holes, pre drill on the markets and then attach the brackets.

Install the stop end

Now install the stop end on the guttering bracket at the far end from the downpipe outlet. A stop end is simply a short piece of guttering with a cap on the end to prevent water from leaving the guttering system at the opposite end to the downpipe.

Lubricate gutter connections

Ensure your guttering has been cut to the correct lengths, and if working with PVC guttering, apply lubricant to the cut ends of guttering – this will allow the installation and joining of guttering sections much easier. Once this has been done, simply slid the guttering sections into place in the brackets – they should simply snap into place.

Install the downpipe

Now attach the downpipe to the drain outlet – you may need to include offset bends in the downpipe installation to direct water away from the shed and into a water butt. You’ll also need to install downpipe brackets on the side of the shed to ensure the downpipe remains in place – the lowest bracket should be around 1.5 feet above the surface of the ground if no water butt is in use, and other brackets above the first bracket at no more than 3 foot intervals.

We’d recommend installing a 112.5 degree offset bend pointing outwards from the shed with a short section of downpipe at the bottom. This will ensure water runs away from the shed and does not pool next to the shed building.

Still got some unanswered questions regarding gutter installation on a shed roof? Don’t hesitate to get in touch, whether you’re looking for recommendations on the best guttering for a shed roof, or need some help with the installation process. Call our team today on 01752 692 221or use the live chat in the bottom right hand corner and they will be more than happy to help.

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