Can a Damaged Roof Deck Be Repaired?

Can a Damaged Roof Deck Be Repaired?

Most parts of a standard roofing system can be repaired. However, the decking isn’t among them. Here’s why.

What Is Roof Decking?

The decking or sheathing is the layer of plywood, oriented strand board (OSB) or composite material that covers the trusses and rafters. It provides a flat surface for the rest of the roofing system to be fastened to, including the underlayment and the outer roofing material. The side facing the attic can be left exposed or filled with insulating material like cellulose or expanding foam. With correct construction techniques and quality materials, a roof deck can be used for as many as two installations.

What Causes Damage to a Roof Deck?

The decking is protected by the underlayment, moisture barrier and the outer roofing material, which means it doesn’t get easily damaged from the outside unless the roof is hit by a heavy object like a fallen tree. It can, however, be damaged when moisture infiltrates the roofing structure through small leaks. This kind of damage doesn’t happen overnight. By the time it has exhibited signs like water stains and clumping insulation (most types of insulation tend to form clumps when in contact with moisture), it will have to be inspected by a roofing contractor.

Is It Possible to Repair Decking?

Unfortunately, damaged decking cannot be repaired, only replaced. It is also part of the roof’s structural components, which will make spot repairs impractical. This is why it is important to have components like underlayment, moisture barriers and flashing: to protect the roofing structure from damage caused by moisture infiltration. Investing in quality roofing materials and choosing to work with an experienced roofing contractor can help prevent damage to the roof deck.

Krech Exteriors is your leading provider of roofing and siding services. Give us a call at (651) 349-4514. You can also fill out our contact form to schedule an appointment. We serve customers in Minneapolis and the surrounding communities.

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