How to Tell if a Flat Roof Needs Replacing

Flat roofing is a very cost-effective option. However, these types of roofs can experience some issues over time. With the right care and maintenance, your flat roof can last many years. However, some things can't be avoided, and there comes a time when your flat roof will need to be replaced.

But how do you know when your flat roof needs replacing?

In this article, we will look at the importance of timely roof replacements, the common signs of deterioration, how to inspect your roof properly, and some further information on dealing with flat roof problems. We will also review the various materials and lifespans and advise on how to prevent flat roof problems.

The Importance of Timely Roof Replacement

As your roof ages, it becomes less durable and may be more likely to leak. Suppose you leave your roof too long before repairing or replacing it. In that case, you could be facing some hefty additional costs, which may include additional materials and work to fix any water damage that may have occurred.

In many cases, it is worth investing in a new roof early to avoid high repair or replacement costs in the future. Plus, a new roof will require less maintenance and will last much longer than an older roof.

A new roof will have higher energy efficiency than an old roof. This can result in lower energy bills, helping you to save even more money over time. Plus, a new roof can also increase the overall value of your home.

Identifying Common Signs of Flat Roof Deterioration

There are several common signs of flat roof deterioration.

The list below outlines the most common signs to look out for:

Pooling water on your flat roof
Ripples, rips, and tears
Flashing starts separating
Water spots on the ceiling
Problems with the membrane
Cracks in the coating
Loose fasteners

Roof Inspection Tips

A roof inspection is a thorough and complete examination of all of the roofing components on or inside your home. During a roof inspection, you will look for things that determine the current performance of your roof and identify any issues that need to be corrected.

From the ground, you must look at the condition of the roof and the soffit material covering the overhang. From there, you can get on a ladder to get a closer look to see if water has made its way down any of the edges.

You should also inspect the downspouts and gutters to ensure they’re free from standing water. They must also be attached properly and functioning as normal. You will also need to closely examine the roofing material. This may require you to get onto the roof itself, where it is safe.

Additionally, you will need to inspect roof vents, vent pipes, and media installations in the roof. Make sure all of them are sealed correctly to keep water out, and make sure they are all in working order. You must also make sure all flashing is up to code, working correctly, and in good condition.

Any skylight windows and chimneys will also need to be inspected to ensure they are in good condition and not causing any issues. Finally, you should inspect the ceiling or attic underneath the roof for any stains or water damage, as this can indicate where a roofing problem has occurred.

Consulting with Roofing Professionals

It's usually best to reach out to a professional to complete a roof inspection. Not only is it much safer for a professional to complete the work, but a professional will be able to better identify any issues early and may potentially prevent further damage.

Experts will also be able to advise there and then what work needs to be completed and how best to get your roof in good condition again. They will also be able to offer guidance and provide advice on seeking a reputable roofing professional to complete any work needed for you.

Roofing Materials and Lifespans

Built-Up Roof (BUR)

A built-up roof is a traditional type of flat roofing material made from hot tar and gravel. This type of roof is built from three or more plies or a waterproof material, which is alternated with hot tar and also ballasted with a layer of smooth stone.

In recent years, these types of roofs have seen more advanced materials in correspondence, such as fibreglass membranes. This type of roof is very resistant to fire and is quite a cheap option compared to other options. These types of roofs can last for around 20 - 30 years.

Modified Bitumen Roof

This type of flat roof is made up of a single-ply roll, which is similar to an ice and water shield, but it is impregnated with a mineral-based wear surface. Torch-down systems will involve heating the adhesive while the material is being unrolled. However, a more modern version of this roofing material requires a simple peel-and-stick method.

These are much safer and easier to install and can even be completed as a DIY job. The light mineral surface reflects heat and can help to reduce energy bills. These types of roofs tend to last for around 20 years or more with proper maintenance.

Rubber Membrane Roof

EPDM is a type of true rubber often used for constructing flat roofs. It is a durable single-ply membrane material which resembles an inner tube. However, it is designed to resist sun damage. This type of roofing material can be ballasted with stone, anchored with fasteners, or glued.

This material is quite light and highly resistant to tears and scuffs. Leaks are also easy to patch. These types of roofs can last between 40 – 50 years with proper maintenance.

Cost of a Flat Roof

If you'd like to find out how much a brand-new flat roof will cost you, check out our flat roof price guide for a breakdown of all costs and materials.

Factors Influencing the Decision

Weather is a big factor that will affect how long your roof lasts. Areas with harsher weather conditions, such as strong winds and heavy rain, may be more likely to experience roofing issues.

Having regular roof inspections and completing regular maintenance on your roof can help to extend its life. A well-maintained roof can last anywhere from 20 – 50 years. It's a good idea to have a roof inspection every couple of years or so by a professional roofing company. That way, you can identify any small issues that need to be fixed. This can help to ensure your roof lasts for as long as possible.

Decision-Making Process

In some cases, you may be able to simply repair the roof rather than having to have a full replacement. This is usually recommended for smaller issues as it can be a lot more cost-effective. However, larger issues may require a new roof altogether. A brand-new roof can help make your home more secure, improve your home's energy efficiency, and prevent leaks.

There are many factors that can affect the cost of a roof replacement, including the type of materials used, the size of the roof, and your location in the UK. Those based in and around London will pay more in labour costs than those based in other areas of the UK.

Preventative Measures

There are some preventative measures that you can take to ensure your flat roof stays in perfect condition. Take a look at the list below:

Clean your gutters regularly
Sweep dirt and leaves off the roof regularly
Replace the roof every 10 – 15 years
Seal your roof with a waterproof coating
Get roof inspections every couple of years
Take care of cracks as soon as you notice them

As you can see, there are several signs that you can look out for that indicate you need a flat roof replacement. Replacing a flat roof can help to ensure your home is safe and can also reduce your energy bills.

It's important to maintain your flat roof to ensure it lasts for as long as possible. Plus, it's also recommended that you get a flat roof inspection every couple of years. This will ensure you can prevent any small problems from becoming much bigger ones, and you can increase the lifespan of your flat roof.