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Raise roof

We regularly see homes come by where the attic is just too low to function as a room. Or situations where people lack extra storage space in their property. Raising the roof can be a smart choice in such situations. But how does raising the roof work, what should you consider and what is the average cost for this project? You can read this information and much more on this page.

Increase average cost of roof

Having your roof raised doesn’t always have to be a big project. There are several options, each with its own price tag. Besides the different options for raising your roof, there are also numerous choices that can reduce the price or increase it. In order to give you an idea of the average costs, we have outlined several situations below, including the corresponding prices per project and an overview of price-determining factors.

Price examples

Have your property with a flat roof raised with a flat roof
Does your property have a flat roof and would you like to have it raised with an additional floor? In the most favorable case, the roof structure of the house does not need to be renewed, so you only have the cost of raising the house incl. the roof. The average total price for such a project is around €25,000.
Raising a relatively old roof
Do you own a property with an old roof and wish to have the roof raised? In many of these cases, the supporting structure is not sufficient to support the elevation. Therefore, support of the supporting structure or even complete replacement of the roof structure will be a requirement. This additional work is costly and time-consuming.
The average total price for such a project is about €35,000.

Variable prices

The different choices in the case of raising the roof also ensure that there are many set-up costs in such a project. Different prices are variable and mainly depend on the choices you wish to make or follow following professional advice from our roofer.

Many people forget that in addition to the cost of materials, labor and call-out charges, there will also be costs for the roof inspection and structural engineer. Do you choose to have your project done by Roofers 24/7? You will benefit from that! The inspection of the roof and the calculation of a professional structural engineer are included in the total price of the project. That’s a nice bonus.

Pricing factors

Since there are numerous options present in the area of roof raising, it is good to know what factors affect the overall price. Much is possible, but in this case, as often applies: the crazier, the more costly.

The pricing factors in raising your roof are:

Raise roof and facade only or add full room/living level;
Number of m² of floor area of the roof elevation;
Number of m² of facade area of the roof elevation and facade openings;
Need foundation improvements or not?
Whether or not modifications to the load-bearing roof structure are necessary;
Should stairs be added in case of adding a residential level;
Type of finishing of the new roof;
Type of roofing the new roof;
To insulate or not to insulate the new roof?

With the above points, we have only a handful of all the price determining factors. Would you like more information on what other things affect the overall price for your roof increase or would you like to speak with a professional roofer about options for your home or property? Contact us, we would be happy to take the time to provide you with more information and free advice. Additionally, we offer a free estimate to expertly complete your project for you.

Finishing the roof

As we mentioned above, the type of finish on the new roof is also a price determining factor. There is a wide range of different types of roofing nowadays and the prices for these vary enormously. For the finish of the roof and any additional space created, you should expect to pay an average of €450 – €600 per square meter.

Why raise a roof?

Raising your roof gives several advantages and is in many cases an interesting choice to create more (living) space in a home or property. In many cases we see that raising the roof can enlarge the attic, so that one or more rooms can be created. This extra living space can just mean that you don’t have to move, which saves a considerable investment and chore.

The biggest benefits you gain by having your roof raised:

Extra room(s)
By raising the roof, in many cases the loft or attic can be turned into at least one, but often two full-fledged rooms. You can make these rooms completely as you wish: a large bedroom with attached bathroom? A large study or hobby room? Two extra bedrooms for your (young) children? Much is possible.
More living space
Raising the roof provides more living space and more options for completely customizing your home.
Increasing the value of your home
Creating additional walkable floor space increases the value of your home or property. By the time the property is sold, you will recoup the investment through the resale value.
Increasing the sense of space
By having the roof raised, you simultaneously realize more light into your property. Incidence of light combined with more views of the surrounding area significantly increases the property's sense of space.
Appearance of the house
A raised roof, with or without an extra floor, gives your house a completely different appearance. The finishing of the roof and the facade can be done according to your wishes (as far as technically possible) and therefore you can upgrade the appearance of your house considerably.

Free quote?

Roof raising flat or pitched roof

There are many different types of roofs, so there are also many different options when you start looking into having your roof raised. Does your home or property have a flat roof? This offers different options than a property with a pitched roof. You can read about the possible options for raising your roof on different types of roofs here:

Raising your current flat roof can be done in two ways.

Additional floor finished with a flat roof

On a flat roof, you can add a full floor. This can be over the entire area of the roof, or you can choose to partially raise it. Do you want to keep the same look to your home or add a roof garden or roof terrace? Then it is smart to have another flat roof installed on the new floor.

Additional floor finished with a pitched roof

It is also an option to finish the raised floor with a pitched roof. Under the sloping roof you create some extra living space which is sometimes an advantage when choosing this. A sloping roof can be finished with many different types of roofing materials and so the desired look to the house can be achieved. You can also change the look of your home by looking at the different types of pitched roofs:

Mansard roof (mansard roof)
This is a classic roof type with sloping surfaces. The lower part of each inclined roof plane is steeper than the upper roof plane. Dor these pitched roof planes, a mansard roof is also called a broken roof.
Saddle Roof
A common type of roof is the gable roof. The gable roof consists of two inclined planes that meet in the middle to form an inverted V-shape. A gable roof has a pitch of at least 15°C and can be made as steep as you wish. The steeper the roof, the more living space is created.
Pent roof
A pent roof has one roof shell with at least a 15°C pitch. This type of roof gives a modern look.

Roof raising pitched roof

For raising your current pitched roof, you can read about several options here.

Dormer

Having a dormer installed also falls under raising your roof. A dormer is a smart choice when you want to create limited extra space without having rigorous changes made to the roof to do so. A dormer can be finished with a flat, pitched or pointed roof so that it fits nicely with the rest of your home.

Ridge raising

Single-sided ridge raising
The ridge is raised on one side of the roof. This method creates less space than a double-sided ridge rise, but is less expensive. We should add that a single-sided ridge raise often looks less attractive than the double-sided ridge raise.
Double-sided ridge raising
The ridge is raised on two sides of the roof. More space is created than with a single-sided ridge rise. The appearance of the roof is also better with a double-sided ridge rise. On the other hand, the cost of construction is considerably higher.

From a pitched roof to a flat roof

You can also consider raising your current pitched roof and having it finished with a flat roof. This gives you the opportunity to build a roof garden or terrace and create even more space, both indoors and out.

From a pitched roof to a mansard roof

Changing the type of roof on your home can also offer significantly more space. Changing from an authentic gable roof to a mansard roof immediately offers more space simply because of the design of the mansard roof.

The professionals at Roofers 24/7 are happy to work with you to see what the options are in your case to have the roof of your property raised. Would you like free, no-obligation advice or would you like to ask your questions to quality professionals? Contact us or mail us!

Method of raising roof

So you have been able to read that there are many different choices when raising your roof. Each type of roof raising obviously uses a different method. The professionals at Roofers 24/7 have years of experience in these different methods. We use a clear and efficient step-by-step plan to make the project go as smoothly as possible.

Methods of our roofers:

Step 1 - Checking the structure

Checking the construction of the property is a requirement before starting the project. The construction of the property is leading whether the desired work can be performed immediately or whether additional work is required on the structure. In the latter case, our roofer will provide supporting beams to reinforce the structure. Is a permit required for the roof raise? If so, an inspection by an architect can be part of the permit process.

Step 2 - Preparation of roof structure

The elevation of the roof is accurately measured and marked out, after which the roofer removes the roofing including any insulation material. Now the hole is made to create the roof elevation.

Step 3 - Install elevation on the roof

In the case of a prefabricated roof elevation, the elevation is often prepared in advance by our roofer. This is taken care of in our workshop, so that when installed, the finishing takes no extra time. Do you have a roof raise made to measure? Then our roofer will draw, make and finish the extension on site. This ensures a perfect fit of the roof extension.

Step 4 - Finishing the roof elevation.

In most cases, the finishing of the roof increase is also taken care of by our roofing contractor to your liking. We provide quality roofing, insulation and cladding. Of course our roofer makes sure that your roof extension is and stays completely watertight (this is guaranteed!).

Need a permit to raise your roof?

All forms of raising your roof require an environmental permit. It is important that this permit is issued before the project starts. Almost always the application for an environmental permit requires, among other things, a structural calculation. This calculation should be made by an experienced structural engineer and serves as proof that the construction is strong enough to carry the modifications. If the construction is not strong enough, the structural engineer will provide a structural calculation including a drawing in the construction report. This is leading in the work to make the construction solid and safe before the increase of the roof can and may take place.

Conditions permit roof raising

It is useful to be well informed about the conditions for applying for an environmental permit. You can find the most common conditions here, but please note that these conditions vary from one municipality to another. Receiving a permit for a roof increase often depends on:

The municipality and its conditions and requirements;
The surrounding homes and properties and their appearance;
The type of property (listed, protected face or is this not applicable?);
Opinions and/or objections of local residents and surrounding property owners (with regard to privacy i.e. more views into the garden, front yard etc.);
The type of elevation (raising a garage or raising an entire floor, etc.).

We help you with the permit application

In the application you include the plans for your project including construction drawings, structural calculation(s) and as much additional information as possible. Do you have questions about this or would you like more information? Our roofers will be happy to help.

Want to completely outsource the permit application process? No problem! Our experienced roofers know this process like the back of their hand and will take care of it for you. We use the services of our own structural engineer in this process. Additional costs will be charged for this. Need more information? Please contact us.

Prefabricated roof structure

A fairly new development in the field of roof raising is the prefabricated roof structure. This is a so-called ready-made model which is assembled for you in advance in our workshop. The structure is available in a number of standard sizes and colors. Does your preference deviate from these standard dimensions? Then a prefabricated roof structure is not the right choice for you.

The advantage of the prefabricated roof structure is that it is quickly installed on site thanks to the preparatory work that has already taken place. The installation of a prefabricated roof structure takes considerably less man hours than a handmade roof increase, on the other hand you are forced to stick to predetermined dimensions and colors.

Single-sided or double-sided raising with a precast ridge rise

Raising the ridge is possible both single-sided and double-sided with a prefabricated roof. The advantage of this is that the project does not take weeks to complete and you have a roof raise in a fairly short time. However, also in this case you are bound to standard dimensions and colors, although there are more possibilities with regard to the roof finish.

Would you like more information about a single-sided or double-sided prefabricated ridge raiser or are you curious if this option suits your home or property? Our roofers will be happy to inform you!

Request a free quote for roof raising

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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