How to install corrugated roofing in the UK

When considering a new roof there are many different methods to choose from. Corrugated roofing is a very popular choice. In fact, according to Delamere Roofing Southport it’s one of the best methods.

The reasons for choosing a corrugated roof are many. Not only is the material durable and long-lasting, but also offer excellent weather-proofing.

A corrugated roof will last about 50 years before you need to replace it. You’ll also find that it is energy efficient, meaning that your home stays cooler in the summer and warmer in the winter.

So, how do we install corrugated roofing?

Tile roofing and shake gable details on a new home

Your corrugated roofing will be delivered in large sheets. By the time you have them delivered you will have already measured up the area you need roofed and hopefully have drawn a diagram of a flat image of your roof. This will give you a good idea of how you need to cut the sheets to fit.

At this point you should make sure that you are wearing the correct clothing and eye protection.

Lay out the sheets

You should separate the sheets and cut them while they are flat on the ground. The sheet you are working on should be raised on padded supports.

Make sure that the tools you use produce the minimal amount of heat because excess heat will damage the coating on the sheeting.

It’s a good idea to use a circular saw with fine-tooth blade. You will find that this gives a cold cut. When you come to smaller cuts and openings you may want to use a jigsaw.

Make sure you have a brush at hand to remove swarf. If this is not removed it may cause scratches and even rust.

Now onto the roof

It is best to start up at the eaves. Consider the prevailing winds in your area and lay them so that the overlap is away from the wind. You don’t want your roof to lift in high winds or even leak in rain.

Try not to fully attach the sheets until they are fully aligned. This will give you some wiggle room for adjustment. When you are satisfied with the positioning, then go ahead and secure the sheets.

Make sure that the roofing extends over the edge of the building to allow for drainage into the gutter.

Also, make sure that the sheets overlap each other by at least 25cm.

Sides and edges

You should use good quality lapping tape to finish of these areas. Using lapping tape is preferred to using silicone.

Make use of stitching screws to secure the sheets where they have overlapped. You should place these at 60cm intervals along the overlaps.

A point to note here is that once you have applied the lapping tape it is very hard to remove it so make sure that everything is in position before you start.

You should use lapping tape along the full length of the overlap edge. You can use the lapping tape to seal any gaps under the sheeting and between the edges where they are overlaid.

Ridge caps

Make sure you lay the ridge caps with any joins away from the prevailing winds to stop them lifting. Any overlaps should be more than 15cm.

Stay legal

In the UK before you start your roofing project you need to draw up a plan so that the work is carried out in the correct order. This is particularly necessary if you have other people working for you. Visit Planning Portal for more information.

You can read about the legal requirements at www.hse.gov.uk

To sum up

Because roofing can be dangerous you should always take care to wear the correct clothing and footwear. Safety glasses are essential as well as a hard hat.

Try to use a crawl board if you can to avoid stepping on the sheeting as this may damage it.

The bottom line with getting up on your roof – take care, do it right the first time, then climb off.