Bitumen roof repair
A bitumen roof is common on flat roofs. An observed damage or leak on a bitumen roof should be repaired quickly to prevent further damage. Depending on the type of damage, a localized repair is possible, but in some cases completely replacing your bitumen roof is a better choice. Learn more about repairing your bitumen roof on this page.
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Cost bitumen roof repair
Over the years, the use of bitumen roofing has increased dramatically. Bitumen is very strong and resistant to cracking because it is coated with fiberglass or polyester. Will a repair still be required over time? If so, consider the average prices below:
| Soort reparatie | Gemiddelde prijs per m2, inclusief btw en arbeid |
|---|---|
| Reparatie plat dak | |
| Dakreparatie met bitumen/rubbercoating | € 240 – € 265 |
*The above prices are an average price for guidance. Would you like to know exactly what you will pay for the repair of your bitumen roof? Then request a free, no-obligation quote from us.
If your bitumen roof is damaged to such an extent that local repair is no longer possible, there is nothing left but to replace the bitumen roof. In this case, please consider the average prices below:
| Werkzaamheden | Prijs per m² (incl. arbeidskosten en btw) |
|---|---|
| Bitumen over oude dakbedekking aanbrengen | € 45 |
| Oude dakbedekking verwijderen en bitumen dakbedekking plaatsen | € 85 |
*The above prices are an average price for guidance. Would you like to know exactly what you will pay for the repair of your bitumen roof? Then request a free, no-obligation quote from us.
How is a bitumen roof repaired by Roofers 24/7?
After a noticed damage, one of our professional roofers will come and thoroughly inspect your bitumen roof during a roof inspection. Depending on the findings made during the inspection, we will opt for localized bitumen repair or renewing the entire bitumen roof. All professionals working at Roofers 24/7 work according to the following practices.
Bitumen roof local repair
Does the roof inspection reveal that there is only local damage to the bitumen roof and the rest of the bitumen roof is still in fine condition? Then our roofer will perform a local repair of the bitumen. This is done using a rubber coating or rubber roof paste, but in some cases we may also choose to place a new strip of bitumen over the damaged piece of roof. The method chosen depends on the damage and your personal preference in view of the repair.
Bitumen roof complete renovation
Bitumen roofing can be placed on top of the existing roofing or the existing roofing can be removed and replaced for bitumen. This depends on the condition of the existing roofing, your personal preference and the advice of our experienced roofer. Bitumen is supplied in rolls and it is applied to the roof in strips, with an overlap of about 10 centimeters to achieve complete waterproofing.
There are four different methods by which bitumen can be attached to the roof. These four methods of installing bitumen are:
Detached system
In this method, the underlayment is applied loosely to the substrate. The bitumen roofing is attached to the underlayment. To protect the whole, a ballast layer (aggravating layer) is laid. This ballast layer reflects sunlight and extends the life of the roof. Often tiles, gravel or pebbles are chosen as the ballast layer.
Fully bonded system
This system involves fully bonding the bitumen roofing to the substrate of the roof. This is done in most cases with a gas torch, but it can also be chosen to work with cold adhesives or the old pouring method.
Mechanically attached system
First, this method involves placing an underlayment, which is secured to the roof using roof drilling screws and shims. The bitumen roofing is then burned onto this underlayment.
Partially bonded system
This system is usually used when the bitumen roofing is attached over the existing roofing.
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What is the best way to repair a bitumen roof?
Our roofers are often asked what is the best way to repair damage to a bitumen roof. There is no best method of repair, because the method of repair depends entirely on the damage to the roof as well as the condition of the entire bitumen roof.
To gain some insight into the repair chosen in different situations, please review the chart below.
| Soort schade en staat bitumen | Meest gekozen reparatie |
|---|---|
| Kleine schade, bitumen in slechte staat of oud | Volledig vernieuwen van het bitumen dak |
| Grote schade, bitumen in slechte staat of out | Volledig vernieuwen van het bitumen dak |
| Kleine schade, bitumen in goede staat of nieuw | Lokale reparatie van het bitumen dak |
| Grote schade, bitumen in goede staat of nieuw | Indien mogelijk lokale reparatie, wanneer schade te groot is ontkomen we niet aan volledige vervanging van het bitumen dak. |
What to look out for with bitumen roofing?
Repairing and installing bitumen roofing is a careful job that should preferably be done under the right weather conditions. Thus, the best results with bitumen are achieved by an experienced roofing specialist. The experts at Roofers 24/7 handle bitumen installation efficiently and carefully, paying extra attention to the points below:
-
Local repair only with the best products
We work only with high-quality rubber pastes and rubber coatings to repair your roof in the best way possible. -
Working with caution gas burner
Working with a gas burner requires vigilance and following clear safety restrictions. -
Good seam connection
The strips overlap at least 10 centimeters to achieve complete waterproofing. -
Prevent blistering
Blistering under bitumen can cause puddling and poorer drainage of rainwater. So we take care to prevent blistering. -
Avoiding counter seams
To avoid counter seams, our experts apply the bitumen strips in the direction of the drainage.
Different types of bitumen
By nature, bitumen is not elastic and must be treated to serve as roofing material. There are two different processed types of bitumen commonly used as roofing material.
APP bitumen
APP bitumen is an amalgamation of bitumen with plastic plastic. The addition of plastic plastic makes bitumen resistant to extreme temperatures and is Uv-resistant. The bitumen also lasts longer with the addition of plastic.
SBS bitumen
SBS bitumen is composed of elastomer. This synthetic rubber gives the bitumen great elasticity. Thus, the bitumen resists expansion and contraction with temperature changes.
Biggest difference between SBS and APP bitumen
The main difference between these two types of bitumen is how resistant it is to Uv light. APP is a lot more resistant to Uv light than SBS, due to the addition of plastic. On the other hand, SBS can be treated with a special coating to make it more resistant to Uv-radiation.
To clarify for you what the further similarities and differences are between SBS and APP bitumen, we have a table below with additional information about both types of bitumen. The average prices in this table include VAT and labor costs:
| Soorten bitumen | APP bitumen | SBS bitumen |
|---|---|---|
| Gemiddelde prijs per m² (incl. arbeidskosten en btw) | € 45 – € 52,50 | € 48 – € 55 |
| Levensduur | ± 30 jaar | ± 30 jaar |
| Voordelen | Goed bestand tegen Uv-straling | Sterke hechtkracht aan de ondergrond |
| Onderhoudsarm | Elasticiteit zorgt ervoor dat het onderliggende materiaal bestand is tegen temperatuurschommelingen | |
| Eenvoudig te repareren | Eenvoudig te repareren | |
| Nadelen | Kwetsbaar voor wortelgroei en onkruid | Bij een hoge Uv-straling wordt het materiaal poreus, daardoor is grind nodig ter bescherming |
| Kwetsbaar voor wortelgroei en onkruid |
*The above prices are an average price for guidance. Would you like to know exactly what you will pay for having bitumen installed on your roof? Then request a free, no-obligation quote from us.
Different colors of bitumen
Bitumen comes standard in the color black, but nowadays the range of different colors of bitumen is increasing. For example, you can also choose the colors blue, red, brown and white. Especially white bitumen is increasingly popular, because it reflects the sunlight, the impact on the roof is even smaller. This indirectly makes the roof last longer.
Repairing your own bitumen roof
Are you considering repairing your bitumen roof yourself? Then keep in mind beforehand that it is a labor-intensive job that requires some experience. For example, an experienced do-it-yourselfer can attempt it on their own, keeping in mind safety, the right materials and keeping in mind the right repair and/or fastening technique. That’s not to mention the right weather conditions.
Don’t have enough roofing experience? Have the installation of bitumen done for you by an experienced specialist from Roofers 24/7. This way you are assured of a professional and efficient installation of the roofing and you have a guarantee on the work done. If you choose Roofers 24/7, you choose quality.
Advantages bitumen roof
Especially for flat roofs, bitumen is a common roofing material of choice. But what advantages do you achieve with a bitumen roof? You can read about that here.
Bitumen is easy to repair
Cracks or blisters in bitumen roofing are easy to repair. Rubber paste or rubber coating allows you to seal minor damage quickly.
Bitumen roofing is waterproof
Bitumen is highly resistant to moisture when properly installed. Did you know that about 90% of asphalt roads in the Netherlands are made from bitumen? So reliable for your roof!
Bitumen roofing combines well with insulation
Insulation improves the retention of heat or cold in your home or building. In addition, good home insulation brings your energy bills down significantly. Are you installing insulation boards on the roof? Place bitumen roofing on these sheets, if desired.
Bitumen roofing has a lifespan of 20 to 40 years
Professional installation and choosing the right materials can combine to keep bitumen roofing working in good condition for anywhere from 20 to 40 years. Do have your bitumen roof checked regularly by a roofer to quickly identify and address deficiencies and/or damage.
Bitumen is available in different colors
The standard color of bitumen is black, but nowadays it is possible to choose alternative colors. Think brown, red or white. Currently, white bitumen roofing is incredibly popular. Not only does this look beautiful on a roof, but it also reflects sunlight, keeping the bitumen roof cooler on hot days.
Request a free quote for bitumen repair or replacement
At Roofers 24/7, we think it’s important to work hard, but also to be transparent. We provide you with a customized quote that includes more information than just our prices. After your quote request, you will receive our quote within 24 hours at the email address known to us. We will contact you a few days after the quote is issued for any additional questions and/or comments. For more information or to request a free, no-obligation quote, please email info@dakdekkers247.nl or fill out the contact form on our contact page. You can request a quote by phone by calling: 06-40125121.
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