8 most important parts of a roof
home improvements

The 8 Most Important Parts of a Roof

Every homeowner knows that their roof is made up of shingles, gutters, and a slight pitch. But that’s just the beginning. To function correctly and protect your home from the elements, your roof needs several components. Your home wouldn’t feel right if it didn’t have roof ventilation. We’ll help you to understand the components of your roof and how they are important for the integrity of your home.


Your roofing materials, or shingles, are the cherry on top. They are not the only thing that is admired, but they are a small part of the whole system. Your roof’s first line defense against the elements is your shingles. They must be solid and well-maintained. The following common types of roofing materials are:

a) Asphalt shingles
b) Standing seam metal roofing
c) Metal shingles
d) Cedar shakes
e) Clay tile
f) Slate tile
g) Wooden shingles
h) Concrete tile
i) Synthetic rubber slate tile

Some roofing materials are more durable than others and can last longer. However, it is vital to maintain the integrity of all your roofing components.

Roof decking

Roof decking is the layer between your roof shingles and your roof frame. The roof decking is usually made of plywood or oriented Strand Board (OSB). It is attached to the trusses of your roofing by nails or screws. Decking is a strong foundation that supports your shingles, and it helps to keep them in place in extreme weather and high winds.


The underlayment, which acts as a waterproof barrier between your roof decking and your shingles, is located on top of the roof decking. The underlayment is usually made from felt paper or synthetic material, and it is placed in rows parallel to your roof trusses. Benefits of an underlayment include:

a) If your shingles are damaged, leak protection
b) Roof decking can be protected with a waterproof layer
c) Smooth, smooth surface for roof installation
d) Protection against extreme weather

Fascia & Soffit

The fascia of your roof is the edge. It is also where gutters and drip edges are located. It’s where your roofing material or shingles meet the roof’s eaves. The fascia is crucial, and your soffit is located under the fascia in the overhang. These can be ventilated to maintain proper airflow to your attic. This brings us to the next important part of your roof: the vents.


Ventilation is essential to keep your attic dry from moisture, mold, or that horrible mildew smell. Ventilation helps maintain a steady temperature in your home and eliminates smoke, fumes, and other harmful gases from your home. There are many types of vents that you might find on your roof.

Bathroom Vent (With Damper).

To remove steam from the bathroom and prevent mold growth, bathroom vents are necessary. The vent damper acts as a loose cover over the vent and allows for more air to be released when necessary. This could explain why your vent sounds loud in a windstorm – it is lifting or moving the damper.

Furnace Exhaust Vent

To keep carbon monoxide from entering your home, it is important to have furnace exhaust vents. They should be inspected annually to make sure they are working correctly, and these vents allow dangerous fumes from the furnace to escape safely.

Kitchen Exhaust Vent

Your kitchen exhaust is generally more prominent than your bathroom fan vent. It collects the heat from your oven and microwave fan and releases it from your roof. Proper ventilation is essential for your kitchen because of the steam and gasses that are produced during cooking.

Turbine Roof Vents

Turbine vents are what you see when you look up at your roof. These vents can be seen from within your attic, spinning and breaking the lights, and they create airflow in your attic without allowing animals or pests to enter. Turbine vents are more visible in more extensive attics than they are in smaller ones. This can be a problem for homeowners who want their roof shingles to standing out, which can be avoided with ridge vents.

Ridge Vent

A ridge vent is the best form of ventilation for an attic; it spans the length of the roof’s entire ridge. The constant ventilation prevents ice damming, keeps the air moving, and helps to prevent moisture buildup, which can lead to mold and mildew.

Plumbing Vents

To keep harmful fumes from entering your home, your plumbing must be vented to the roof. Many people wonder how plumbing pipes can be allowed to exit the roof without leaking into your home. Each plumbing vent has a neoprene boot that covers it and prevents water from entering. This pipe boot is susceptible to rot and should be replaced if your roof ever needs to be replaced. If you suspect your plumbing leaks, you should inspect your roof for a crack or loose plumbing vent.


Skylights can be an excellent addition to any home but should be maintained and sealed regularly to avoid leaks. An adequately installed skylight will have flashing around its base, which must be checked for cracks and holes. If you have ever noticed heat streaks emanating from your skylight during a sunny day, it is time to replace your skylight.

Valley Flashing

Your roof’s valleys are where two sections meet to form a valley or crease. Valley flashing is essential to prevent leaks at this edge. For seamless, clean water flow out of these valleys, “W”– metal flashing is best. It provides a solid surface on which water can flow so that it doesn’t sit on your precious roofing materials.

Chimney flashing and Chimney

Although chimneys are essential to the functioning of many homes, they can also be a major cause of roof leaks. The base of your chimney is the point where it meets your roof. This area must be adequately sealed with flashing to stop water infiltration. This sealant or caulking can crack over time and let water in behind it, leading to severe damage.

Gutters and Downspouts

Your roofing system should include gutters and downspouts. These two components work together to divert water away from your foundation and home to prevent flooding. They are essential to keep debris-free, so water doesn’t back onto your roof and causes water damage.

You can hire a professional roofer to handle all parts of your roof.

It can be hard to keep up with roof maintenance and repairs, especially when there are many things to consider. Finding a reliable, professional roofer is essential, and AMI Builders & Construction is the best roofing contractor for Raleigh and Fuquay Varina for all your roofing needs. We can help with everything from roof inspections and repairs to complete roof replacement. Contact us today to schedule a free inspection!

If unsure, contact AMI Builders near Raleigh and Fuqua Varina to fix or replace your leaking gutters. We can conduct a thorough inspection to ensure your home is safe from water penetrations or other damage. Call us today (984) 213-4244 for a free inspection!