10 common roofing mistakes and how to avoid them


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This introductory guide provides common roofing mistakes and how not to make them!

Replacing your roof is an investment you only want to make once. The challenge is that many of the most important elements of a roofing installation are hidden.

Only the roof shingles are visible from the outside, which means that evaluating a roofing installation just by looking at it is not effective.

This article will help you understand the mistakes many homeowners make when roofing.

What are the most frequent mistakes in roofing work?

Sometimes it happens that you decide to start roofing work without resorting to professional help. There are many reasons. It may be more economical or you just have time to kill. In any case, here are the most frequent errors in roofing work, we provide you with the means to avoid them.

Mistake 1: Make a roof installation with poor ventilation

A poorly ventilated roof can cause excessive heat build-up and affect its effectiveness in collecting moisture. Many homeowners don’t give it much thought until the heat gets unbearable. This is why professional roofers use advanced roofing materials to ensure a structurally sound and properly ventilated roof.

Mistake 2: Using unsuitable materials

The choice of roof covering materials is influenced by several parameters which should not be ignored. Among these parameters, there are first the requirements of the Local Urban Plan. Indeed, the use of specific materials is imposed in certain regions.

It is therefore important to check with the town hall before buying them. The second parameter to take into account is the shape of your roof and its degree of inclination. Know that each type of roof has the right tiles. Finally, do not ignore the climatic variations in your region. These also dictate the choice of materials.

Mistake 3: preparing poorly

Whether it is for a simple cleaning or a roof renovation, it is essential to be well prepared in advance. For example, you need to have at your disposal the materials and working tools necessary to complete the operation. It will save you time. Besides that, plan a fairly large budget to avoid unpleasant surprises. To do this, request a quote from a roofing company.

Mistake 4: Covering old shingles

Roof shingles are flat or curved tiles that interlock or overlap in a way that channels water from a pitched roof. Shingles are made from several different materials and can vary in terms of:

  1. Cost
  2. Weight
  3. Durability
  4. Color
  5. Style

When replacing a part of a small part of a roof, it is important to remove the old shingles and replace them with new ones.

Placing new shingles over the old ones can cause certain areas of your roof to accumulate moisture and dirt. This will eventually lead to deterioration of the roof and accelerate the need for further repairs.

The correct way to handle old or damaged shingles is to remove them and install new ones. This error will not be a problem if you decide to use a roofing company like Remarkableroofingconstruction.com located in Seine et Marne.

Mistake 5: neglecting the leak test

Once the repair or renovation of the roof has been completed, it is imperative to carry out a waterproofing test. Indeed, a leaky roof will promote water infiltration while humidity is the roof’s number one enemy.

It not only attacks the roof covering but also affects the components of the roof and promotes the growth of mold. Besides that, it softens wooden structures such as the frame. Consequently, it alters the general condition of your roof.

Mistake 6: Attempt to do the work yourself

Taking care of roof maintenance is a very ambitious project, even if you have a solid knowledge of the subject. Aside from the risks of working at great heights, you probably don’t have the necessary equipment a roofer has. So take the time to hire the best roofing contractor near you to get the job done quickly and satisfyingly.

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Mistake 7: neglecting safety instructions

Cleaning your roof or replacing a broken tile are operations that are done at height. And who says height says the risk of falling. Indeed, it is important to take all possible measures to ensure your safety, because you should know that a fall could be fatal.

Thus, to avoid accidents, it is essential that you set up scaffolding and that you provide yourself with roofing PPE. The latter includes a protective helmet, safety harness, guardrail, non-slip shoes, protective gloves, etc.

Mistake 8: Hiring an Inexperienced Roofer:

It may sound intuitive, but choosing a contractor is probably the most important part of the roofing process. Generally speaking, always try to look for local contractors with proper licenses, insurance, guarantees, and an established reputation.

Hiring a local roofer has several advantages. For example, a roofer who has worked on a property in your area before is more likely to have familiarity with roofing work similar to yours.

Word-of-mouth recommendations are a fantastic way to verify the quality of work a roofer is capable of. With that in mind, be sure to ask for references from your family, friends, and neighbors.

Additionally, there are a lot of online resources out there that can help you track down roofers in your community. Remarkable Roofing & Construction can make finding contact details for roofers in your area incredibly easy, and you can also do some research of your own using the best roofing contractor directory to find the top-rated tradespeople in one. click of a button.

As always, when you compare roofers and read reviews online, remember that the individual circumstances and the scale of your roofing project mean that your experiences and end costs may vary. Each project is unique.

Mistake 9: Incorrect Flashing Installation

Flashing is a thin, impervious sheet of material used to prevent water from entering or seeping into a building. It also directs the flow of moisture into the walls. Flashing is particularly useful at junctions, such as:

  • Roof hips and valleys
  • Joints between roofs and vertical walls
  • Intersections or roof projections (chimneys, skylights, ventilation pipes, and window openings)

When replacing a roof, your roofer mustn’t reuse the old turn signals. Although the old blink may appear to be in good condition, this reuse may lead to problems in the future.

Therefore, always make sure that the professional replaces any old turn signal with a new one that is less likely to wear out. A variety of materials can be used for flashing, including aluminum, copper, and stainless steel.

Choosing the right material for your roof will depend on:

  • Your budget
  • The necessary durability
  • Visibility

Likewise, the contractor must properly install any new turn signal. If the flashing light on your roof is misaligned, improperly overlapped, or not properly secured, then there is a chance that your roof might not be sufficiently prepared to protect your belongings and possessions from ice, rain, and snow.

Mistake 10: Do very little follow-up

No one is perfect, but the real test of a quality business is their commitment to doing things right. Do yourself a favor and hire a professional who can handle all of your requests before, during, and after your roofing project.

This includes pressure-free estimates, good communication, and a thorough clean-up after the project. You deserve a great experience.

Also, keep in mind that things can go wrong when working with the wrong people. A sloppy finish can cause damage and increase your energy bills. A roofer should be licensed, insured, and have years of positive work experience.

The functionality of the roof

The basic function of a roof is to protect from the elements. Not only does a roof allow a house to retain heat in the winter and cool the air in the summer, but it also protects people and their belongings from the water. With this in mind, your roof is one of the most important aspects of your property.

starting work without a thorough diagnosis Do not be tempted to repair visible damage at the first glance. Indeed, even before starting work, you must carefully inspect the general condition of your roof.

In other words, it is necessary to inspect the condition of all the elements composing it. Ideally, have a roofing specialist do the diagnosis. A roofer, for example, is able to accurately determine the work to be apprehended after a possible diagnosis.

Roof insulation: discover the most common mistakes

Good installation is an important factor when it comes to insulation. In order for the insulating layer to be as effective as possible, therefore, prevent heat from escaping your home through slits and gaps between the insulation panels. So make sure that the connections between the panels are correctly made,

but also that the panels are perfectly adjacent to the structure to which you are fixing them. Do not neglect the installation of the airtight vapor barrier. The latter cannot be perforated or interrupted, at the risk of thermal bridges forming.

Do not insulate your entire roof

Also, note that the only way to obtain an optimal insulation result is to insulate your entire roof. It might seem logical, but skylights are often overlooked, as are the perimeter of skylights and the edges of the roof, which is not without consequence.

Compress the insulation material too much

Insulation materials such as glass wool owe their insulating properties to the air trapped between their fibers.


However, it’s no secret that a damaged roof can lead to other problems and unwanted exposure to the elements. It is therefore essential that all roof-related repairs on your property be carried out by a roofing expert.

So, to make sure you can find a qualified and experienced roofer, let’s look at three of the most common roofing mistakes, and the steps you can take to avoid them.


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