Roof Decking – What You Need To Know

According to commercial and residential roof replacement experts, when homeowners talk about their home’s roof decking system, most of them know that it’s composed of the shingles, underlayment, flashing and the roof deck. However, when it comes to their roof’s decking system, some actually don’t know much about it. This is actually understandable as the deck is a component of the roof that isn’t always seen. But if you’re looking to understand your roof a little bit better, it’s always best that you learn everything you can about the roof deck.


Here’s what you need to know about your roof’s decking system.

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Purpose of Roof Decking


Surprisingly enough, roof repair experts say that not a lot of homeowners actually know what the roof deck is for. The deck is a vital component of your roof that is attached to the trusses and joints of your home’s roofing system. Once it’s attached to the roof, it adds an extra layer of protection that prevents water from infiltrating your roof and your home, allowing you to avoid leaks in the process.



Believe it or not, you don’t actually have to replace your roof’s deck when you’re replacing the roofing system itself. To determine if the roof deck is in need of a replacement, your roofers will examine it for any signs of rot or bending while they’re replacing your roof. If any part of the deck exhibits these conditions, then that section will be removed and replaced with a new one while those that are still in good condition will remain.



Some homeowners tend to think that roof decks only come in one type. However, this is nothing more than a misconception as there are actually several types of roof decks. These include the tongue and groove, OSB sheathing, plank sheathing, step sheathing and plywood sheathing. Each roof deck variant comes with their own sets of advantages and disadvantages so if you’re having a hard time choosing, be sure to consult a professional for their help and advice.


Looking for someone who can help you maintain your roof? Look no further than Sully-Jones Roofing, the number one service providers to approach when it comes to your commercial roofing and roof replacement needs. Give us a call at (619) 444-0150 or fill out our contact form to get a free inspection. We serve homeowners in Chula Vista, CA, and other nearby areas.

Roof Decking