Roof Decking

When it comes to your home or business’s roof, the roof decking is often overlooked. The decking is the backbone of your roofing system. It provides support and structural stability. This article will help you understand the different types of roof decking and the issues to look out for. This knowledge can potentially save you hundreds, or even thousands of dollars.

What Is Roof Decking:

 Roof decking is the material that the shingles, metal panels, or other roofing materials attach to. It is typically made of plywood, OSB (oriented strand board), metal, or concrete. It plays a crucial role in weight distribution, as well as acting as a barrier against rain, wind, snow, and other elements that can damage your roof. Without decking (or sheathing), your roof can sag, shift, or fail completely.

Common Types of Roof Decking:

It’s important to understand the different types of roof decking and the benefits each one has.

Plywood Decking:

Plywood decking is the most popular choice for both residential and commercial applications. It’s made up of thin layers of wood that are glued together with grains at right angles to each other. It’s the cross grain design that gives plywood it’s strength and structural integrity.

OSB (Oriented Strand Board) Decking:

OSB is also widely used in the roofing industry. It is made up much in the same way as plywood, but it is less expensive. It provides a cheaper solution, while not compromising on structural strength and integrity.

Metal Decking:

Metal decking is most often used in commercial applications. It’s added strength and durability stands up to the additional weight of industrial vents and other materials. It’s typically made from aluminum or galvanized steel. Metal decking often stands up better to harsh weather conditions, fire, and pests. Since commercial roofs are often flat in nature, this added durability and strength makes metal decking ideal.

Concrete Decking:

Concrete decking is primarily used in industrial and some commercial applications. It’s made from reinforced concrete which adds strength and structural durability.

Concrete decking is exceptionally strong, which helps it support very heavy loads. This can include industrial HVAC systems and other rooftop equipment. Concrete is also very fire resistant, as well as wind and water resistant. It is well suited for flat roofs or low slope roofs.

Plank Decking:

Plank decking is traditionally made from soft woods such as fir or pine. It’s laid across rafters in a side by side fashion. Plank decking is often used in historical restoration projects when it’s important to adhere to traditional methods. Although it’s not used as often in modern applications, it is still sometimes used in residential construction. Especially older homes or historically significant buildings.

Signs Your Roof Decking Needs Repair:

Leaks and Water Damage

One of the most common signs of decking damage is leaks. If you notice water stains on your ceiling, that can indicate that the water got passed the roofing materials and into the decking. It can lead to rot or even collapse.

Roof Sagging

If you notice your roof sagging, it is a sure sign of decking damage. Signs could include dips or uneven areas. It’s often caused by prolonged exposure to moisture or excessive weight.

Mildew and Mold

If you notice signs of mildew or mold, it can indicate that moisture has infiltrated your roof decking. This can lead to roof deterioration, as well as occupant health issues.

Energy Bill Increases 

Roof decking damage can cause an increase in utility bills. This is due to it compromising the insulation in your home or business.

Holes or Visible Damage

Regular inspections of your home or business’s roof can detect things like holes, cracks, or missing section in the decking. Any of these issues can lead to leaks animals getting into your home.

Loose or Popping Nails

If you see signs of loose nails or nails popping out of your roof, it can be a sign that the roof decking is compromised or deteriorating. It’s often due to rot from excessive moisture.

Strange Noises

Groaning or creaking sounds coming from the roof can be a sign of structural issues with the decking. They can occur when the material shifts or gets weaker under pressure. It’s a good idea to have your roof inspected if you hear these noises. Especially if your roof is getting close to it’s life expectancy.

Age of the Roof

Another factor that can affect the roof decking is the age of your roof. Again, if your roof is at or past it’s expected life span, it’s a great idea to have your roof decking inspected by a professional. At The Roof Repair Guys, we’re always happy to come and inspect your roof for possible signs of damage.

How To Repair Roof Decking:

Inspection

The first step in assessing the shape of your decking is having it inspected by a professional roofing company. They will be able to see signs of mold, sagging, holes, etc.

Removal of Damaged Decking

The roofing professional will use a pry bar or hammer to carefully remove the areas of the decking that are damaged. They can also properly dispose of these damaged materials, adhering to local laws.

Installing New Decking:

A licensed and professional roofing company can help you decide on the best materials for your new roof decking. Again, these include plywood and OSB for residential, as well as metal and concrete for commercial and industrial. The roofing company will carefully measure the damaged areas and replace them with this new material. They also will ensure that the nails or other fasteners are spaced correctly.

Proper Ventilation:

Ensuring that your roof has proper ventilation is crucial to preventing moisture building and rot. Some of the ways of doing this include installing ridge vents, soffit vents, and attic fans.

Final Inspection and Waterproofing

 A professional and trustworthy roofing contractor will thoroughly conduct a final inspection, making sure there are no gaps. They will also make sure all fasteners are tight and that are no uneven areas. They will then make sure the roof is waterproof and that the materials create a seamless barrier against moisture.

Conclusion:

Making sure that your roof decking is in it’s best condition can prevent costly repairs such as leaks or structural damage. Consult a professional roofing contractor (such as The Roof Repair Guys) for an inspection of your roof decking.