What Is Roof Decking and When Does It Need Replacing?

Roof decking is the layer of wood boards or sheathing that sits on the rafters and holds everything else: underlayment, flashing and shingles. It needs replacing when it is rotted, soft, delaminated or badly water damaged. The only reliable way to see all of it is to tear the old roof off, which is how Honest Roofers does every pitched roof.

Why Does Decking Matter?

Shingles are only as good as what they are nailed into. Soft or rotted decking does not hold nails well, can sag, and lets leaks spread.

What Are Signs of Damaged Decking?

• Sagging or dips in the roofline.
• A spongy feel underfoot.
• Dark, stained or rotted wood visible in the attic.
• Leaks that have gone on for a long time.

How Is Decking Replaced?

During a full tear-off, the crew removes all old material down to the deck. Damaged sections are cut out and replaced with new decking before underlayment goes down. Read why tear-off matters.

Can Decking Be Fixed Without a New Roof?

Small damaged areas can sometimes be replaced as part of a roof repair. If damage is widespread, it is best handled during a roof replacement in Myrtle Beach.