What Does a Sagging Roof Mean? Here's What You Need to Know
Noticing a dip or wave in your roofline? A sagging roof is not only visually unappealing, but it's also a sign that your home may have underlying structural problems that need attention. While this issue is especially common in older homes, it can happen to any property for several different reasons.
If you're in Georgia and concerned about your roof, call EXOVATIONS at 770-766-5011 to schedule a professional inspection.
What Is a Sagging Roof?
A sagging roof is one that appears curved, droopy, or uneven instead of straight and uniform. This issue typically indicates that the roof's structural integrity has been compromised. Most often, sagging occurs in roofs that are aging, poorly constructed, or have been exposed to damage over time.
Even minor sagging should be taken seriously. A properly built roof should not sag under normal weight. If it does, even temporarily, it is often a warning sign of potential failure in the near future.
Common Causes of Roof Sagging
There are several factors that can lead to a sagging roof. Understanding these causes can help you take preventive action before the problem worsens.
1. Water Damage
Poor drainage or prolonged roof leaks can cause the wooden sheathing under your shingles to rot or decay. Over time, the weakened materials cannot hold the roof's weight, causing it to sag.
2. Undersized or Inadequate Framing
If the roof was built using rafters that are too small (for example, 2×4s instead of 2×6s) or lacks sufficient internal bracing, it may not be structurally sound enough to support the weight of the roof over time.
3. Excess Weight from Snow or Debris
Heavy snow, ice, or even piled-up debris can place extreme stress on the roof system. While most roofs are designed to handle some snow load, regular clearing, especially after storms, is essential. A plastic roof rake is recommended to avoid damaging shingles.
4. Structural Movement
Over time, walls can shift or spread apart due to foundation settling, poor construction, or changes in the soil. When this happens, the roof may lose support and begin to sag in the middle.
5. Age and Deterioration
Eventually, all roofs reach the end of their useful life. If your roof is more than 20 years old and beginning to sag, it may simply be worn out, and full replacement could be the best solution.
How to Fix a Sagging Roof
Repairing a sagging roof is a complex process that requires caution and expertise. If done incorrectly, you could risk additional structural damage or even injury. In most cases, it is best to leave the work to professionals like the team at EXOVATIONS, who specialize in roof replacement.
Can I Fix It Myself?
If you're experienced with structural repairs and feel confident working at heights, there is a method you can try. However, always proceed with caution and consult an expert before beginning.
Basic Steps for Lifting a Sagging Roof:
Secure the Space: Attach two strong chains from one side of the wall to the other using lag screws and large washers. Install a turnbuckle to control tension and evenly distribute the load.
Jack Up the Ridge Beam: Set up a jack and post system below the sagging ridge. Slowly raise the roof ridge by no more than 1 inch per day to prevent structural damage. Tighten the chains after each adjustment.
Reinforce the Structure: Once the ridge is level, install new rafter ties or ceiling joists for added support. You can also reinforce the ridge beam by nailing 2×4 boards directly to it, anchored into the joists below.
This process can take one to two weeks and requires precise execution. If you are unsure at any point, stop and contact a professional.
Don't Risk It, Call EXOVATIONS
If your roof is sagging, don't wait. The longer the problem goes unresolved, the more likely it is to cause major structural issues or even collapse. If you need a full roof replacement, EXOVATIONS is here to help.
Call 770-766-5011 or schedule a consultation online to speak with one of our certified roofing specialists. We will assess the problem and provide a safe and cost-effective solution to restore your home's integrity.