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Main differences between commercial and residential roof maintenance and repair

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Commercial roofs and residential roofs have the same job, which is to protect one’s property. However, there are key differences in their maintenance and repair. Also, they are designed and constructed differently. Certain roofs require special maintenance and repair methods, and some roofing materials require certifications for handling and installation. Importantly, commercial and residential roof maintenance and repair is much more complicated in certain aspects. We have talked with certified roofing engineers from DNB Construction LLC about this topic. Here are the main points and conclusions of our discussion.

1.Different construction

Most residential roofs are sloped to facilitate water runoff, while commercial roofs are apartments to accommodate heating, ventilation, and air conditioning (HVAC) or solar systems. Each style has its advantages and disadvantages. Commercial roofs that do not slope, for example, often have problems with waterlogging and runoff. When it refreezes, it can lift the shingles and create large gaps that allow even more water to seep in.

A good roofer knows the areas where your roof is most susceptible to damage. For example, on residential roofs, ventilation shafts, dormers, and masonry chimneys are inspected first. Commercial roofs, on the other hand, lack these structures, so roof experts look for other things, such as problems with flashings and surface erosion.

2.Different composition


While residential roofs are typically made of shingles or tiles, commercial roofs use modified single-ply rubber or plastic membranes. Different materials require special equipment and skills. So, an expert in residential roofs is not automatically qualified to install or repair commercial roofs – and vice versa. A roofer who specializes in commercial roofs may not know that the overhang of shingles must be exactly between one and one-and-a-half inches. A smaller overhang allows water to seep in, and a larger overhang risks the shingles being carried away by high winds.


3.Different maintenance and repair

Both commercial and residential roofs require regular inspection. Inspecting commercial roofs is a bit easier, as you can simply walk on a roof to see if there is debris buildup in the gutters that needs to be removed, or if the flashings are damaged and need to be replaced. Keep in mind, however, that only roofing experts should repair or replace your roof. Your untrained eye might miss a small problem that can turn into a big one.

On the other hand, residential roof inspection and repair should only be done by roofing experts. You should never climb on a home’s roof to inspect it for damage because standing on sloped surfaces can lead to accidents.

Finally, no matter what type of roof you have, only trust roofing professionals for repairs and maintenance. DNB Construction LLC has a lot of experience serving residential and commercial customers. If you have any questions about residential or commercial roofs or would like a free estimate, call us at 301 – 362 – 7663.

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All You Need To Know About Roof Leaks

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A lot of homeowners don’t realize that their roof is leaking until it’s too late. Large amounts of water during and after the rainfall can be an issue if the roof has damaged areas. Importantly, when the leak shows up it needs to be regarded as something really serious. It is vital to hire professional roofers who are going to work fast to stop the leak, so it doesn’t ruin the roof completely. DNB Construction LLC’s roofing engineers have shared some basics about the roof leaks, and their causes. What is more, these certified roofers listed ways to prevent roof leaking and protect your belongings.

The necessity of roof maintenance

Proactive roof maintenance is the key to preventing and avoiding the possibility of roof leaks.

Frequently, heavy rain itself is not the real cause of a roof leaking. A tree that falls or its branch can puncture a hole that makes a leak during a bad storm. Also, the problem with the roof may already exist and the rain simply reveals it.

Neglected roofs are prone to leaking and serious damage, especially when they are older than a decade. Seams are roof areas where leaks can show up, as well as the spots where a chimney meets the rest of the roof.

Gutters should be adequately cleaned to enable a clear path for water. In this way, water won’t back up and create pools on the roof.

Steps to take instantly in case of roof leaking

From the moment you detect that your roof has started leaking, be ready to act immediately. Here are the steps to keep your belongings protected and prevent more damage.

  • Move your furniture and devices

Knowing that the water from the leaking roof can seep down the walls, all valuable items have to be protected. Be ready to relocate or cover the large furniture to protect it. It’s crucial to unplug and remove electronics from the problematic room.

  • Collect the leaking water

It’s important to keep the rainwater collected in one single area. In this way, the cleanup will be easier. Also, major damage will be prevented.

  • Drain water packets

If you notice a pocket of water formed from the roof leak, drain it. Take a bucket and catch the water. Then, use a screwdriver to make a small hole in the wall to allow water to escape.

  • Ventilate the area after you dry it

Do your best to dry and ventilate the affected area. In case you don’t do that, cool standing water in dark areas encourages mold growth. So, use ventilation and towels to dehumidify and dry the place.

  • Call professionals

All in all, the most important is to get in touch with experienced roofers who can instantly help. They use special equipment to climb on the rooftop and solve leaking issues ASAP. Their methods are proven and efficient to prevent further roof damage and costly repairs.

DNB Construction LLC is your true friend for all kinds of roof services. Its roofing technicians can react adequately using the right tools at any moment. Remember that DNB Construction LLC’s team is available 24 hours a day, 7 days a week in case of a roof leak emergency. The contact number is +1-301-362-7663.

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Quick Tips On Making Your Roof Eco-Friendly

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Would you like to have an eco-friendly roof? Have you ever heard that your roof can increase the carbon footprint of your house? Did you know that the carbon footprint of a building is a measure of how much it impacts the environment? Importantly, homes that are built from the wrong materials can contribute to greenhouse gas emissions and global climate change. So, DNB Construction LLC’s certified roofing engineers explained how you can make your roof more eco-friendly next time when you consider either roof replacement or roof installation.

We discussed two important activities that you can consider as soon as you decide to make your roof eco-friendly.

  1. Choose light-colored roofing materials

Believe it or not, roofing materials of light colors can make your roof more eco-friendly. Moreover, all shades of gray and white are convenient since they reflect more sunlight than they actually absorb. In this way, you will need less money for cooling your building. Frequently, metal roof shingles are ideal because they require little maintenance. Plus, they can be easily painted to improve reflectivity. A lot of homeowners agree that metal roofing is more budget-friendly in comparison with other green roofing solutions.

  • Use renewable and recycled roofing materials

Apart from considering roofing materials of light colors, you need to take into account renewable and recycled roofing materials if you plan to have an eco-friendly roof. In this way, it’s good to bare in mind that in a lot of cases, asphalt shingles are recycled and remanufactured for further use in novel roofing systems. Also, clay tiles, metal roofing, and concrete tiles are commonly used. Additionally, some manufacturers use tar paper and many other supporting materials that are produced from renewable sources. When you know that and take into consideration all the above mentioned, it will reduce your carbon footprint in the future and make your roof eco-friendly.

DNB Construction LLC is your partner from the moment you start thinking about either roof installation or replacement. These are two ideal opportunities to make an eco-friendly change for your house. Get in touch with DNB Construction LLC since it has a team of roofing technicians for green roofing solutions. These dedicated roofers use many recycled products and give their best to contribute to more sustainability and less waste. Phone DNB Construction LLC at 301 – 362 – 7663 or visit its official websiteto hear more about eco-friendly roofing solutions for your building or home.

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Why Is Attic Insulation Beneficial?

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Apart from being huge storage for your discarded toys, unwanted bits and pieces, and broken furniture elements, your attic has a role in determining the temperature in the house. What is more, every attic is a great support to both adjacent structures and the roof. Knowing all that, proper attic insulation can be very important, especially during cold seasons. That is why DNB Construction LLC’s experienced roofers shared their thoughts on the benefits of attic insulation.

  • Low utility bills

If there are problems with the insulation in the house, whether it is non-insulated or underinsulated, it is vital to turn the heather up to make living cozy in the winter months. On the contrary, when it is hot, it is necessary to turn the AC on. However, if there is adequate attic insulation, the need to rely on air conditioning systems or ventilation is less. In this way, attic insulation trims overall utility expenses.

  • Prolonged life of all house materials

It is a fact that both moisture and heat can damage one’s house. But, attic insulation is there to act as protection that keeps water vapor away from eroding the walls. Plus, attic insulation prevents mold from growing and decaying plywood. 

What is more, attic insulation protects the house by preventing ice dams from forming when it is cold. Proper attic insulation makes the roof cold and the snow doesn’t melt causing any damage.

During summer, attic insulation lowers the heat in the attic and prevents shingles from cracking and swelling. Importantly, attic insulation is beneficial since it stops plywood from softening.

Finally, proper attic insulation changes the temperature inside the house, so residents rely less on HVAC systems. Because HVAC systems do not work overtime to regulate the temperature, they can last longer.

  • Much healthier indoor air

Attic insulation prevents entering all harmful elements that spread inside one’s home. That is why replacing old insulation removes pollutants accumulated over years. In houses with novel attic insulation, indoor air is safer, healthier, and cleaner for all residents.

  • Finer indoor conditions

With attic insulation, comfortable and optimal temperatures inside are easily achieved. In winter, there is a layer of protection in case of freezing temperatures outside, so the home is cozy. On the other hand, in summer, attic insulation blocks heat to seep into the walls and roof. Plus, attic insulation keeps the cold air from the AC from getting out.

DNB Construction LLC is there to help you with any possible roofing issue. This fast-growing roofing company earned its reputation because its roofers know how any roof, ventilation, or insulation system works. All who would like to enjoy the benefits of attic insulation can contact DNB Construction LLC at 301 – 362 – 7663 today.

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Top 3 Commercial Roofing Materials

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Those who consider replacing their commercial roofing material have a lot of things to consider. It’s not easy at all to opt for specific roofing materials and to upgrade the roof in the most optimal way. The choice of proper commercial roofing material is delicate and demands a lot of knowledge and attention. Our aim is to help every owner of commercial roofing systems. That is why we asked DNB Construction LLC’s certified roofers to explain the most common commercial roofing materials.

Commercial roofing material No.1 – PVC

PVC roofing systems are a cross between a fiberglass substrate and a rubber membrane. PVC is a flexible material that is also durable, so it is easily applied over all other surfaces, including metal, concrete, and masonry. A lot of commercial properties decide to have PVC roofs because of their cost-effectiveness. Plus, PVC roofs require less maintenance and have a longer lifespan.

Commercial roofing material No.2 – TPO

TPO roofing systems are common in industrial areas. Importantly, they are made from special thermoplastic crated in a combination of polyesters and polyolefins. They are cost-efficient, durable, and fire-resistant. What is more, TPO roofs withstand hair wear and tear. Also, they have proven to be excellent against natural disasters and storms. TPO roofs last for many years.

Commercial roofing material No.3 – Modified Bitumen

“Asphalt”, “tarmac” or modified bitumen is a mix of gravel, sand, water, chemicals, and bitumen. Usually, modified bitumen is used as a sealant for roads, roofs, parking spaces, and driveways. Modified bitumen is an excellent choice for the majority of commercial properties because of its durability, long-lasting, and easy installation. What is more, modified bitumen is affordable commercial roofing material.

DNB Construction LLC is there to help with top-quality commercial and residential roofing services. This trustworthy commercial roofing services provider from Rockville MD is ready to carry out A1 class roofing results in record time. Contact us at 301 – 362 – 7663 to learn a lot about professional roofing services offered by DNB Construction LLC.

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Gutter installation from A to Z

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Gutters are important for home protection against water damage. It is vital to have your roof gutters regularly maintained to ensure that they last over 2 decades. However, gutters can wear out after some time and need to be replaced. More about gutter installation was said in the following paragraphs by DNB Construction, LLC’s roofing engineers.

How to detect gutters’ issues?

Roof gutters have to be inspected regularly for cracks. Sometimes, it is best to use binoculars to identify possible issues on the roof. What is more, inner roof space can signal that something is problematic with the gutters on the roof. Usually, wood areas around windows get soaked and start to rot. What is more, mildew may grow on the siding.

Which gutters to choose?

There are many available gutters styles. The shape of one’s home and the landscaping are two factors that influence which gutters have to be chosen. What is more, gutters are produced in materials such as aluminum, steel, or copper, and can be seamless to prevent possible leaking.

How long does gutter installation last?

Professional gutter installation is quick for ordinary roofs. In case a roof has some angles, complex shapes, or is large this procedure may last a bit longer. A homeowner should choose dry weather for the work and time without rain.

What is done before a new gutters installation procedure?

Prior to the start of the professional gutters installation process, homeowners have to check if they need some building permits. If there are old gutters, they need to be removed and adequately disposed of. Also, if there is some additional work that has to be done before the gutter installation procedure, such as repainting some roof elements or replacing rotted fascia boards, a certified roofing company can do that.

DNB Construction, LLC is there to professionally install the gutters for its clients. The entire procedure is done to keep the water away from the siding, wood elements, and home foundation. Adequately finalized gutter installation prevents rain from running off the roof.  Gutter installation and replacement are not DIY activities because of the risk of falling. DNB Construction, LLC takes all necessary precautions to mitigate possible risks and to avoid any accidents during roofing works. Feel free to call us at 301 – 362 – 7663 to take care of the gutters on your home.

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5 Signs That You Really Need New Roofing

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Having a roof in the best condition is crucial for several reasons, apart from the apparently more appealing home, there are waterproof benefits, and much better insulation. The majority of homeowners have a dilemma about the time when they have to pay more attention to their roof and have a new roof installed. Roofing experts from a reputable company DNB Construction, LLC have explained how to inspect our roof and pay more attention to it. All listed things are going to be helpful to decide how soon the novel roof installation is needed.

  1. Consider your roof’s age – A lot of roofs start having minor or major issues after 15 years. Each problem is significant and one has to take care of it with the help of a certified roofing company. It’s advisable to do that as soon as possible to avoid more costly and serious roofing works.  However, a roof’s lifespan can be more than 2 decades, especially if it is regularly maintained.
  2. Check your roof’s shingles – One or more torn, cracked, or missing shingles on the roof can expose it to water damage in the future. Heavy rains, storms, snow melting, or other events of severe weather can damage roof shingles. What is more, the quality of roof shingles is not the same, and those of poor quality are more prone to cracking.
  3. Pay attention to the roof’s flashing – In case it is rusted, numerous problems with leaks may appear. Since roof flashing is metal that surrounds your chimney and vent pipes it is prone to get rusted. Also, missing flashing can produce more costs for every homeowner.
  4. What is the condition of your roof’s gutters? – Take some time to check the gutters for decay. Problems with paint and scraps are visible, but there is some invisible damage that can be truly serious. That is why regular roof inspections may be a great help.
  5. Inspect all ceilings and walls in the house. – These inner house elements can indicate roofing problems. Usually, homeowners notice leaks or walls discoloration as the first signals of more serious roofing issues.

We are DNB Construction, LLC, reliable roofing company, whose well-coordinated roofing technicians have a lot of experience in all kinds of roofing works. All you have to do is get in touch with one of our team members who is going to listen to your plans and perform a free inspection on the spot. Call us at 301 – 362 – 7663 or send a message on our website.

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Tips and Tricks for Your Attic Ventilation

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Moisture is a great threat to every home and its roofing. It is 100% sure that homeowners give their best to avoid problems with both mold and mildew. What is truly helpful is to ensure that the attic ventilation works immaculately at any moment. The basic role of attic ventilation is to ensure the free movement of air into and out of the attic. Therefore, an adequate attic ventilation installation can control the climate in a house. In the following lines, well-informed roofing technicians from DNB Construction, LLC shared 3 main risks of poor attic ventilation.

No. 1 risk of poor attic ventilation – Roof  Damage

If there is no good air exhaust and intake in humid and hot months, temperatures can rise significantly. The combination of moisture and heat results in problems with shingles, such as deterioration, warping, and many others that can be more expensive roof problems.

No. 2 risk of poor attic ventilation – Condensation

If there are great amounts of moisture on the roof, it can cause the creation of mold and mildew. In cold months, warm air from home finds its way into the attic and creates condensation. If left unattained and with no ventilation, there can be many problems.

No. 3 risk of poor attic ventilation – Ice Dams

This is one of the major poor attic ventilation risks that happen in cold months. In this case, snow melts because of the heat from the attic and freezes down the roof and its gutters. What can become a great problem is serious roof damage, walls damage or many roof leaks.

How to improve attic ventilation?

Any kind of roofing damage can be costly. That is why improving attic ventilation on time is a cheaper and more secure option for every homeowner. A licensed roofing company such as DNB Construction, LLC is there to ensure the proper attic ventilation with the installation of adequate intake and exhaust vents. A well-coordinated team of roofers from this company suggest using 2 kinds of vents. Soffit vents are common, make the air flow freely, and are made to keep unwelcome critters out of the home. Exhaust vents allow both hot and cold air to exit from the attic, and they are installed at the highest roof ridge.

For all additional and detailed questions, you can get in touch with DNB Construction, LLC. Its engineers are ready to objectively assess any roof, suggest possible attic ventilation options, and give the best price on the market. Years of experience and a client-oriented attitude are two major things that truly single out DNB Construction, LLC. Apart from attic ventilation, this roofing contractor offers a wide range of roofing services, starting with roof maintenance, repairs, and replacement. The fast and efficient service at affordable prices waits for you. The contact number of DNB Construction, LLC is 301 – 362 – 7663.

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What can affect the lifespan of your roof?

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As one of the most crucial elements of a home, your roof has to be in perfect condition at every moment. An adequately maintained roof is the best barrier between the interior and exterior surroundings and adds aesthetic value to the house. However, there are many factors that can affect the lasting of each roof. Due to many years of experience and knowledge about various roof issues, and understanding homeowners’ needs, DNB Construction, LLC’s roofers gave us more detail about everything that can make the roof’s lifespan shorter.

  • Weather conditions in the area

The condition of the roof depends a lot on the weather conditions in the area where the house is situated. Frequent heavy rains, snows, strong winds or other severe weather conditions can damage the roof. It is great that there are a lot of roofing materials on the market that can protect the roof from the above-mentioned hazards.

  • Roof material

One of the most important things is to carefully plan and choose the roofing material. It can be a rather time-consuming process, since there are many factors that have to be taken into consideration. The fact is that some roofing materials are more durable than others. Therefore, the best thing is to consult a certified roofing company for an objective estimation about the roofing material that is the most suitable for your future roof regarding the climate, area, and other factors.

  • Roof maintenance issues

It is vital to have regular cleaning of the roof gutters. This can be a routine that removes all collected rainwater from the roof. Gutter cleaning should be done twice a year, preferably in fall and in spring. The fall gutter cleaning is beneficial because it removes the leaves and dirt that are the result of rainy and windy weather. In spring, roof maintenance helps to remove the unwanted elements that have been collected during winter. This is the way to prevent premature roof failure.

  • Insulation

This is one of the most crucial things when it comes to higher utility bills. Adequate insulation helps in regulating indoor temperatures and adds to the roof’s lifespan. Tapestry is used to increase the thermal insulation of roofs and to protect the home from heat loss.

  • The quality of the roof installation

It is necessary to opt for a professional roofing company that truly understands your needs. Well-coordinated and certified roofers use the best tools and technologies and know all about the roofing materials available on the market. Only experienced roofing technicians work by the schedule and respect the client’s budget and all other requirements.


DNB Construction, LLC is a reliable roofing partner to all homeowners in the process of roof installation, maintenance, restoration, painting, and repairs. It is easy to schedule an appointment with members of the DNB Construction, LLC’s roofing team. Trust professionals and choose the best. Contact DNB Construction, LLC today at (301) 362 7663.

Does a new roof add value to your home if you decide to sell it?

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Every owner who considers selling his home thinks about the true value that a new roof can add to it. It is obvious that a new roof’s overall cost is based on a couple of factors and that it varies regarding the home’s age and location, too. Buyers don’t want to worry about the roof’s condition when they purchase a home, and they expect it to last for a couple of years without any serious issues and unexpected costs. DNB Construction, LLC has a team of well-coordinated roofers who were willing to speak about the value that a new roof can add to one’s house.

The true value of a novel roof brings about several crucial things that can help a seller sell his house faster and the buyer to choose the house in record time. There are a lot of things that a brand-new roof includes and ensures. Some of them are really beneficial for a buyer and can make him decide to buy the house both easier and faster.

Here are some of the crucial benefits of having a new roof before you start with the selling of your house:

  • More appealing roof’s appearance – this is visible from the road and adds to the home’s aesthetic ensuring that the house is not aging and shabby.
  • Better roof inspection results – new roofs ensure that the overall roof inspection results are more positive for the longer future periods since every smart buyer opts for professional roofers to give an objective roof estimation
  • More optimal warranties
  • Greater buyer’s confidence – they know that replacing a roof is not the thing that they are going to worry about in the near future, so that’s one thing less on the check-off list.
  • Lower expected utility bills – new roofing materials have better energy-efficient ratings and include ‘cool roof technology’ that save money on monthly utility bills

DNB Construction, LLC is a roofing specialist firm whose professional roofing technicians have been working on many roofing projects. Their task is to help every client have the objective estimation of his roof’s condition and to suggest what are the necessary activities for the future period. DNB Construction, LLC presents every potential client with a variety of options during the free inspection, so feel free to get in touch with these roofing specialists at 301 – 362 – 7663.

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