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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.

Winter-Roofing-Tips

An ice melter for your roof

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In case you don’t know an ice melter is a deicer or substance used to remove ice that has formed on building exteriors and other surfaces during the winter. Importantly, it is applied before or on top of snow and is used on a variety of roof shingles. DNB Construction LLC has a team of professional roofing contractors who have given us top tips for using an ice melter on your roof. Before choosing an ice melter, you should first consider the following factors.

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1.An ice melter’s composition

It’s vital to find out what is the ice melter made of. Be careful to avoid products with calcium chloride, since it can cause serious burns to pets’ paws when they step on it. Moreover, this kind of ice melter may damage vegetation if not washed off quickly enough after use. It’s advisable to use a less corrosive ice melting agent made from sodium chloride (rock salt). It doesn’t damage vegetation but may cause skin and eye irritation. If inhaled in greater amounts, there may be some respiratory problems.  is not as harmful to vegetation as calcium chloride. Ice melting with potassium chloride may be the best choice when it comes to safety because it poses the least risk to people, animals, and plants. It is less harmful than calcium chloride but melts ice more effectively than sodium chloride.

2.An ice melter’s warranty

Using ice melters poses some risks, such as staining the roof surface. So before you buy an ice melter for your roof, you should carefully check the manufacturer’s warranty.
Different warranties offer different levels of coverage. Make sure the warranty specifies exactly what type of damage is covered and the cost of repairs or cleaning.

3.Lowest melting point

Ice melters are not all equally effective. So, you should make sure that the product you buy can actually melt the ice on your roof. Therefore, you need to know the lowest melting point of your ice melter, which is the lowest temperature at which it can melt snow or ice. If you use an ice melter at temperatures below its lowest melting point, it will not be effective.
In general, ice melters can be divided into two categories based on how they melt snow. Exothermic ice melters, such as magnesium chloride and calcium chloride, release heat and melt ice very quickly, so they work well at extremely low temperatures (below -32°F). Endothermic ice melters, such as sodium chloride, on the other hand, must extract some heat from their surroundings to dissolve ice or snow. This makes them slower than exothermic deicers, especially in very cold environments where there is little moisture for them to absorb. For this reason, they are best suited for warmer weather conditions (above -20°F).

4.An ice melter cost

Budget is always an important consideration when it comes to maintaining your home. As a rule of thumb, do not spend more than you have to. So always consider how much ice melters cost before you decide on one. Try to figure out why certain ice melters are more expensive or less expensive than others. Calcium chloride, for example, is one of the most expensive options, but it’s also very effective at removing ice quickly. This means you do not have to use a lot of it, which saves you money. Rock salt is usually a bit cheaper than calcium chloride, but its melting power is not as efficient. Potassium chloride is inexpensive and, when combined with water, can melt snow or ice down to -20°F. And like rock salt, it does not need to be rinsed off, so it’s easy to use. Choose the ice melter that offers the best value for your money, time, and effort.

Using an ice melter is just one way to keep your roof stable through the winter months. If you need help with winter damage repair, do not hesitate to contact DNB Construction LLC. We have experienced roofing contractors who can help you 24/7/365.

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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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Why do your skylights leak?

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Skylights are commonly installed to add to a home’s lighting and interior beauty. They are ideal to make the homeowner feel special and exclusive. However, due to manufacturers, there are visible differences in skylights’ performances and prices. Usually, the quality of the skylights’ components impacts their price. That is why problems with the skylights leaking can be detected. They arise because of a number of things. DNB Construction LLC’s certified roofers shared three things that are responsible for the skylights leaking.

Reason No.1 – Cheap skylight components used by inexperienced property builders

Owners who don’t have enough experience tend to use cheap skylight components to save on costs. It is vital to openly speak with your roofers and see the benefits of installing top-quality skylight components. Roofing contractors who have a lot of experience know that adequate skylight components produce sufficient results.

Reason No.2 – Bad installation

When you opt for roofers who aren’t qualified or coordinated, it is possible to experience improper placement of the pan metal, low nails, sidewall flashing, and much more. The roofing technicians with poor expertise tend to use inadequate tools and make the overall skylight installation improper.

Reason No.3 – Old window seal

The seal that holds your windowpane in place can be worn due to its age and exposure to weather conditions. The seal starts to wear out at the corners of the window seal frame and causes leaks. So, the frame corners expand and contract because of the weather changes. Then, small inlets open for water and it runs down into the house.

How can you combat skylight leaking?

The most important thing is to detect the origin of the skylight leaks. If the water comes from the sides or corners of your skylight frame, there are a lot of chances that it needs replacement. Get in touch with the professional roofers from DNB Construction LLC to visit your roof and explain how and what parts of the skylights are prone to leaks. This trustworthy roofing company prides itself on doing its best to educate its clients and readers regarding all roofing issues. Each one of DNB Construction LLC’s experts will assist you with everyday roofing and skylight needs. So, don’t wait and call +1-301-362-7663 as soon as you suspect a roofing issue.

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Having a skylight installed – pros and cons

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A roof light or a skylight is a special light-permitting structure that looks like a window. Frequently, it is of transparent glass and forms all or part of the roof.  A skylight is a noticeable addition to a home that adds to its aesthetic value. We have asked knowledgeable roofing engineers from DNB Construction LLC to tell us more about the pros and cons of having a skylight installed.

Skylight installation

The installation process includes careful placing of the insulated glass held within an aluminum frame and flashing. If the skylight installation isn’t adequately carried out, it can lead to skylight leaks and other more serious issues.

What to consider before a skylight installation?

The skylight type that you’ll choose depends on your needs. Usually, count on:

-saving energy

– improving air quality

– light control

Fixed skylight prevents cool air from escaping. Also, it doesn’t allow hot air to enter during summer. In this way, the overall energy bill is reduced. Up-to-date skylights include glazing technologies, such as heat-absorbing tint and low-emissivity coatings.

With a skylight, indoor air quality is better. It removes indoor air pollutants and regulates odors and heat near the ceiling. In most cases, automated skylights are equipped with special moisture sensors that tend to close as soon as they detect rain. Plus, smart skylights use sensors to adjust and monitor humidity levels, temperature, and air quality.

From the moment you install a skylight, you have a chance to control the light because skylight installation doesn’t include non-stop natural light coming into the room.

Skylight – pros

It is accepted that modern designs of skylights increase a home’s value. Also, they fit the owner’s unique taste. The list of benefits connected with having a skylight installed includes:

  • having natural light
  • saving money
  • fresh air

The natural light that comes into the house increases its value and improves the health of all residents who get more vitamin D. In this way, they can feel energetic during the day. Also, they can sleep better and be relaxed. Importantly, certified roofers help to choose where to place the skylight to suit one’s wants and needs.

In the long run, saving money is possible with a skylight. It is nowadays equipped with modern technology and reduces heat transfer while still letting in natural light.

The entire air quality is improved with a skylight installed on the rooftop. Ventilation skylights help in making the house filled with a greater amount of fresh air. There is no same and stale air. Also, when a skylight is in the kitchen, all smells are easily removed from the home.

Skylight – cons

The most important cons that are connected with having a skylight installed are:

  • price
  • possible leaks
  • roof suitability
  • heat loss

With the skylight installation, saving is almost impossible. It is more advisable to go for fixed or manual skylights, instead of automated ones. If you buy a poor-quality skylight, you may end up with greater costs in the long run, due to leaks, discoloration, and more.

When the skylight installation process is inadequate, there is a threat of possible leaks. In this way, rainwater may collect and leak inside. So, skylight leaking can bring about serious damage.

Skylights are suitable for standard frames compared with truss roofs.

The homeowner may feel that they lose more heat in colder months. It is the case when skylights are old and need some fixes.

For all questions regarding professional roofing, feel free to call DNB Construction LLC. This reliable roofing company is ready to objectively assess the roof and discuss openly future activities. DNB Construction LLC’s contact number is +1-301-362-7663 or you can contact these experts online at any moment.

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Top 5 Roofing Shingles in 2022

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Do you plan to install a new roof? Have you been researching the materials to find the best one? If you need accurate professional advice regarding your new roof material, DNB Construction LLC has a well-organized team of experienced roofers who can help. Moreover, read on to discover the top 5 roofing shingles in 2022 according to these certified roofers.

It all starts with the premise that roofing shingles are designed and produced for specific purposes. That is why some may have advantages over others. Importantly, roofing shingles are accepted by modern homeowners as truly beneficial. Here is the list of 5 roofing shingles types that have proven to be the most frequently used in 2022.

  1. Fiberglass roof shingles

For a lot of homeowners fiberglass roof shingles have been the most preferred roofing material. They are easy to install. Plus, they are lightweight and guarantee great insulation for one’s home. However, the price of fiberglass roof shingles is high. Also, there are not so many style options compared with other shingles types. Finally, fiberglass shingles are manufactured in fewer colors.

  1. Wood roof shingles

These shingles are for many clients one of the most environmentally friendly roofing materials. They are produced of cedar, in most cases. Importantly, wood shingles are resistant to decaying and rotting. Aesthetically, wood roof shingles are seen as great material. On the other side, wood shingles have to be regularly maintained to last for many years.

  1. Asphalt-composition roof shingles

These roof shingles are among the cheapest ones. Since they are reasonably priced, a lot of homeowners choose asphalt-composition roof shingles. What is more, asphalt-composition shingles can be used for all climates. Plus, their lifespan is long. Significantly, asphalt-composition roof shingles are maintained easily. However, this shingles type is not so environmentally friendly.

4. Clay roof shingles

Clay roofing shingles look great and add to the roof’s aesthetics. They are long-lasting. A lot of owners decide to have clay shingles installed because of their natural look. Also, these shingles require little maintenance. On the other hand, clay roofing shingles are more expensive than other roofing materials.

  1. Metal roof shingles

Metal shingles have a long lifespan. They are produced in many colors and styles. Plus, they are resistant to harsh weather and different climates. Metal roof shingles can be found in various materials. Importantly, their insulation prowess is great and they are strong protectors. But, metal roof shingles are not easy to install. Usually, they require an additional layer under the roofing to insure that it is adequately installed. Metal roof shingles are expensive. All who want a long-lasting roof that stands out in the neighborhood, choose metal roof shingles. 

All in all, DNB Construction LLC is here to help you decide which roof shingles are the best for your roof. If you are not sure what would be the best roof shingle investment, consult with professionals. The team at DNB Construction LLC will assist with all your roofing needs. Give us a call and schedule a consultation today at 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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Holiday Decorations And Your Roof

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Having holiday decorations, Christmas lights, and displays on your rooftop are obligatory elements of every winter holiday season. Many homeowners carefully consider how to decorate their rooftops without damaging them, since massive lights over and along the roof can be unsafe and potentially harmful. We discussed with skillful roofers from the certified roofing company DNB Construction LLC about the holiday decor on the roof and the possible damage that it may cause. What is more, these well-organized roofing technicians gave us a few tips on hanging holiday decorations smoothly and safely.

Tip No.1

Divide your holiday decoration activities into a few steps. Plan all segments of your roof decor. It’s important to consider your rooftop decorations before you put them up. Importantly, you have to read the manufacturer’s instructions on the decor step by step.

Tip No.2

String lights are important for holiday decorations since they are used for trees, bushes, gutters, and roofs. Only rubber or plastic hooks can be used for their hanging. Nails or staples may damage the insulation on the wires.

Tip No.3

When you string the lights around gutters use a ladder. You should not stand on the rooftop or lean too far to one side to reach the gutter.

Tip No.4

Be cautious to protect the decorations and keep them from overturning. If that happens, your roof will be damaged and professional roof repairs may be needed.

Tip No.5

Simply, lift the decoration using a rope and safely position the lights on the roof yourself. Also, review the functioning of wires and use safe bolts thoroughly to ensure that Christmas decor elements will work well in case of rain, snow, and strong winds. A lot of homeowners install lights up with clips that are attached to the gutters.

Tip No.6

Finally, do not remove the decorations swiftly from the roof, because they can rip down and damage both shingles and gutters. Additionally, remove each clip carefully while you hold the decorations to prevent any unexpected situations.

DNB Construction LLC is a reliable roofing company whose knowledgeable roofing engineers are ready to help you in case of any roofing issue. They have a lot of experience with all kinds of professional roofing services. If you need advice regarding rooftop holiday decorations and their safety, DNB Constructions LLC can save you trouble at any moment. For all roofing services, visit its official website and send a message, or call 301 – 362 – 7663.

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Is Roofing Felt Necessary?

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A lot of owners usually have a dilemma regarding roofing felt. They are not 100% sure if their roofs really need it. Nowadays, roofing contractors frequently stress the importance of roofing felt installation. DNB Construction LLC’s certified roofing technicians explained the four major benefits of roofing felts.

So, if you think about having roofing felt, read the following lines. In that way you will see why roofing felt is beneficial.

  • Roofing felt protects your roof

Experienced roofers will emphasize that roofing felt acts as adequate protection to your plywood layer while roofers work on it. Plus, roofing felt is similar to a cushion when roofing technicians walk on the roof or kneel. Also, roofing felt is a protection of the exposed plywood. It is vital since it is more costly to repair the damaged plywood than the roofing felt. Finally, everyone can work faster on the roof that has roofing felt.

  • Roofing felt lowers fire risks

In the case of up-to-date fire rating shingle testing, roofing felt is vital as an underlayment. Without roofing felt, shingles can’t provide the expected level of fire protection. Consequently, the tested building will not meet the necessary fire requirements in the area.

  • Warranties on roofing elements

Homeowners avoid issues with roofing elements’ warranties when they use roofing felt. Importantly, roofing material producers today design roofing parts with warranties assuming that a property owner uses roofing felt.

  • Roofing felt prevents roof staining

If there is not a protective layer of roofing felt, plywood starts leaking. Furthermore, it may lead to problems with roofing shingles. Also, there may appear roof staining. When you notice dark spots on your roof shingles, be sure that it is because of not having roofing felt.

We are DNB Construction LLC, a certified roofing contractor, ready to help you with all roofing works. Our roofing technicians are there to give objective assessment and advice 24/7. Give us a call @ 301-362-7663.

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4 Ways To Prevent Damage On Your Roofing Felt

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It is difficult to mark the right number of days one can leave roofing felt exposed. Experienced roofers emphasize that as soon as you have roofing felt on your roof, you should give your best to complete the roofing job fast. In this way, it will last longer and be better protection for your roof.

DNB Construction LLC’s team suggests four ways to prevent damage to your roofing felt.

1.Hire the best roofers

When you choose the right roofing company, your roofing felt will be exposed for a shorter time. Well-coordinated roofers will finish the job faster. Also, having more workers on-site will make the roofing works easier and quicker.

2.Think about the weather

It is vital to consider the weather forecast before you start with the roofing works. This will help you to avoid problems connected with the roofing felt exposure. So, check the weather forecast for climate changes in the next few days. This is related to the area where you live. In this way, your decision to start with roofing works needs to be carefully checked in case of rainy seasons. However, if you live in areas with a drier climate, you will not have problems with the weather.

3.Have a roof tarp

A roof tarp is an ideal way to save money. Also, having a roof tarp will prevent problems with stress on rainy days. So, it’s good to rent a roof tarp from a roofing company that provides roof tarp services. You don’t need to purchase a roof tarp for just one roof. However, you can buy a roof tarp if you work on several roofs.

4.Roof felt needs to dry for at least a day

Before roofers install shingles, your roofing felt has to be 100% dry. So, be sure that it has dried when it gets wet. When roofing felt is exposed to direct sunlight, only 24 hours are needed for its drying. However, if the weather is colder, the roofing felt drying lasts longer. The best advice is to check several times all roof elements if they are dry.

DNB Construction LLC is a trustworthy roofing company that helps with the roofing works of different complexities. Its well-organized roofing technicians use premium roofing materials and follow the world’s trends. DNB Construction LLC’s team is available 24/7. The contact number is 301-362-7663.

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