What is the lifespan of a bitumen roof?

Flat roofs, particularly those covered with bitumen, are prone to wear and require regular inspections to ensure longevity and prevent costly damages. If you're considering purchasing a property with a flat roof, understanding the lifespan and maintenance needs of different roofing materials can help you make informed decisions, and Homekeur offers comprehensive building inspections to guide you in this process.

Flat roofs are often covered with bitumen. Compared to pitched tiled roofs, flat roofs are much more vulnerable. Are you considering buying a house with a flat roof, or do you have an outbuilding, such as a shed, with a flat roof? Then it's wise to have the roof thoroughly inspected to ensure it's still in good condition. Homekeur thoroughly inspects roofs during a building inspection . Is there anything wrong with the roof covering or roof structure? We'll provide you with all the information in the building inspection report , supplemented with advice and cost calculations. We're happy to tell you more about the lifespan of a bitumen roof.

How long does a bitumen roof last?

All types of roofing have an average lifespan. For flat roofs, various types of roofing can be chosen. If PVC roofing is chosen, the average lifespan is 25 years. Of all roofing types, this is the shortest average lifespan. Bitumen roofs come in second. Bitumen roofs have an average lifespan of 30 years. Of course, other types of roofing are possible, such as EPDM (rubber) and, of course, green roofs. EPDM roofs last an average of 40 years, and green roofs have an average lifespan of no less than 50 years. However, green roofs require more maintenance than other types of roofing.

Maintenance of a bitumen roof

When a bitumen roof is properly maintained, it reaches its maximum lifespan. It's important to regularly inspect a bitumen roof, or have it inspected. It's recommended to do this every other year. If maintenance work is required on the bitumen roof, it's best to do it in spring or autumn. Bitumen hardens when the outside temperature drops below 15 degrees Celsius. This can cause the material to splinter easily. When temperatures rise, such as in summer, it softens, making damage more likely to occur.

Pay extra attention to the roof edges

Bitumen roofs have raised edges that are subjected to extra wear and tear. When conducting an inspection (or having one done), it's therefore especially important to pay attention to the roof edges. These are the first to wear. If the roof is covered with slate chips, the quality of the protective layer diminishes over time. This increases UV radiation exposure, causing the bitumen to decompose. This decomposed material is washed away during rain, causing the underlying bituminous material to oxidize. This leads to a sudden and rapid deterioration of the roof's quality.

Have a bitumen roof inspected properly

Homekeur is happy to conduct a building inspection for you if you have a nice home in mind. We inspect the current condition of the house, as well as any outbuildings. Bitumen roofs are also inspected. You can find all the information about our findings in the building inspection report . Want to be sure about a property? Then schedule an appointment online for a building inspection. You can always contact us for more information or advice.

Would you like to make an appointment for a building inspection?

The cost of a building inspection (up to 250 m²) is only €489 including VAT. We'll conduct a comprehensive building inspection and you'll receive a building report. Do you have any questions? We're happy to help and can schedule an appointment with an expert inspector right away if you wish!

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