Would you like to have a construction calculation made for your dormer window?
Are you planning to install a dormer window? Then you need a structural design to comply with all regulations and possibly obtain a permit. The construction calculation for a dormer window guarantees that you can have the dormer window installed safely, professionally and quickly and you can be sure that your construction is insured. You will receive a complete calculation report from us, a scale drawing and the data for a detailed calculation for the steel supplier within 5 working days. This means you are well prepared and you have all the necessities in order for the contractor and other parties involved.
Is a construction calculation required for installing a dormer window?
When installing a dormer window you change the supporting structure of your home. This means you run the risk of cracks, subsidence or worse when installing a dormer window.
To prevent these types of dangerous situations, the government has environmental law in the decree It is established that you must always be able to demonstrate that your home is safe, this also applies if you are allowed to build without a permit. A construction calculation of your dormer window ensures this. If an environmental permit is required for your dormer window, the construction calculation is part of the permit application and is therefore essential for approval. Can you build without a permit? Then you are responsible for complying with the safety rules.
What is calculated in a dormer construction calculation?
A construction calculation for a dormer window involves a calculation of the construction required to install the dormer window. The components of a construction calculation for a dormer window are:
- Load-bearing walls
- Beam layers
- Roof construction
- Floor construction
- Checking the foundation
- Trusses and purlins
After making the construction calculation, the constructor processes the calculated result on the construction drawing. Thanks to this construction drawing, the contractor has insight into which building materials are needed and how he should install the construction. You can see this construction drawing as a manual for the contractor.
Why have a construction calculation made for your dormer window?
Good construction saves you costs. Our goal as a constructor is to ensure that you receive a high-quality calculation with the lowest possible material costs, while the contractor can carry this out properly. Thanks to the investment in a good construction calculation, you can be assured that the total costs for the dormer window and installation will be lower.
If you choose to have a construction calculation for your dormer window made by Constructiefgoed, you will receive it within 5 working days. Are you in a hurry? Please contact us to discuss further options, we are happy to think along with you!
Curious about the cost? Receive a free quote within 24 hours!
Frequently asked questions about making construction calculations
What does a structural engineer do?
A structural engineer tests and calculates structures of buildings through structural analysis. Think of bridges, homes, commercial buildings and other types of structures. It is the task of the structural engineer to make a calculation that ensures that the renovation can be carried out safely and efficiently by the contractor.
When do you need a structural calculation?
When you change anything in your home to the existing load-bearing parts, you need a structural analysis. Examples of these parts include; floors, beams, roofs, foundations and walls.
A structural calculation is also required for new buildings to ensure that the construction is safe. Examples of this include; extension, dormer or extension.
This involves making sure your idea is strong enough that it doesn’t end up sagging or worse.
What is the cost of a structural calculation?
The cost of a construction calculation depends on the type of construction and its size. You can contact us for a quote request for your construction.
How long is the delivery time of a construction calculation?
The delivery time of your construction is 5 working days after approval of the given quotation. If there is more urgency you can contact us for the possibilities. We like to think along with you.
Do your structural engineers work throughout the Netherlands?
Our structural engineers work for part of the Netherlands. In most cases we make the structural calculations remotely. If a site visit is still required, we will of course arrange that as well.
What does the structural engineer need for a structural calculation?
Our structural engineers make the structural calculation based on two types of construction drawings. These are the original drawings of the building, which can be requested from the municipal archives. In addition, the structural engineers also need a drawing of the desired situation.
How does the structural engineer make the structural calculation?
So the structural engineer uses two types of building plans to make the calculation. He ensures that all possible loads have been calculated so that no cracks or deflections can occur. In doing so, the structural engineer also takes into account the necessary regulations.
How do I request the structural calculation?
You now know all about the calculation. The last question is how to request a structural calculation. This is actually very simple, you can do this with us! Request a free quote on our quote page.
What information does the structural engineer need for the calculation?
Before one of our constructors can make a construction calculation of your dormer window, he needs two types of drawings:
- Original drawings of the building
- Drawing of the desired situation
Original drawings of the building
All these drawings are stored in the municipal archives. Here the construction drawings are especially important for the constructor. You can request these construction drawings, even if you are not yet the owner of the property. Would you rather have us request the original drawings for you? That is also possible, more information can be found in our quotation.
Drawing of the desired situation
Furthermore, a constructor needs information about the desired situation. A construction drawing of the desired situation makes it clear what your wishes are as a customer. For a dormer window that requires a permit, this drawing is in most cases made by the architect. For a permit-free renovation, these drawings may be less extensive. In these types of cases, we as a constructor can also draw the desired situation.
Installing a dormer window with or without a permit
In some cases it is possible to have a dormer window installed without a permit, in other cases a permit is required.
Dormer window without permit
If you are allowed to install a dormer window without permits, this has a number of advantages. It saves costs for applying for the permit and you do not have to wait 8 weeks before the permit is finally approved.
If you are allowed to build without a permit, this does not mean that you can build completely without regulations. Does the construction plan meet the conditions for a permit-free dormer window? Then you can build without applying for a permit. The rules of the zoning plan then do not apply. As a homeowner, on the other hand, you are responsible for damage to third parties. That is why it is important to always build a dormer window safely and with a construction calculation. There are a number of numbers conditions drawn up by the government for a permit-free dormer window. The following conditions apply to the installation of a dormer window without a permit:
- The dormer window is built on the rear roof surface or on a side roof surface; However, this side roof surface may not face a publicly accessible area (the road, greenery);
- The dormer window has a flat roof;
- The dormer window, measured from the base of the dormer window, is not higher than 1.75 meters;
- The bottom of the dormer window is more than 0.5 meters, but less than 1 meter above the roof base1;
- The top of the dormer window is more than 0.5 meters below the roof ridge2;
- The sides are more than 0.5 meters from the sides of the roof surface3;
- The dormer window may not be built on a temporary home or residential building, such as a shack, or on a caravan; the
Dormer window with permit
Does the dormer window not fall under the permit-free conditions? Then you must apply for an environmental permit for your dormer window via the environmental counter. For the permit you need a construction drawing and a construction calculation of the dormer. Based on these drawings, the municipality checks whether you meet the requirements of the building code, the zoning plan and the building regulations. Please note: the municipality has 8 weeks to issue the permit. Therefore, make sure that you apply for the permit on time.
To help you apply for the permit, we have created a blog showing the steps you need to take to easily apply for your own permit. Not quite sure? Then you can always contact us. We will then schedule a team meeting and one of our designers will help you with your request.
With Constructiefgoed, installing your dormer window becomes easy
On this page, but also on our blog, you will hopefully find all the information about installing a dormer window and its preparation. A construction calculation plays an important role in preparation. By making a construction calculation you comply with regulations, avoid unnecessary costs and ensure that your home is safe.
We at Constructiefgoed focus on making construction calculations for renovations. Last year alone we made more than 500 calculations for dormer windows. Our engineers have seen all conceivable situations and solutions. It is partly thanks to this expertise that our clients always receive a good and efficient structural design from us. In addition, we can guarantee that you will receive your permit!
