When a roof begins to show signs of buckling, it is important for the homeowner to quickly address the cause in order to prevent additional damage. If left unattended, this issue can make the roof prone to collapse, so timely action is a vital preventive measure. While it is ideal for the roof to be installed by a Houston roofing specialist in such a way that this sort of damage is prevented, there are instances in which material degradation may still adversely affect the structural integrity of the roof. In instances such as these, an attentive homeowner who takes steps to repair the roof will extend the roof's lifespan while ensuring its continued function.
A roof will often begin to buckle due to the presence of excessive moisture. When this moisture builds up in the sheathing, the plywood will swell, altering sections of the roof by pushing the materials either up or down. These alterations are not desirable from an aesthetic or practical standpoint, as a roof that exhibits these signs is both unsightly and less likely to function properly. There are two main causes of a buckling roof, both of which should be addressed at the time of installation.
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The first cause has to do with the application of improperly spaced plywood. All wood expands and contracts according to environmental conditions, so professional roofers typically space the panels so that there is 1/8 of an inch of space between each one. If the sheathing has not been properly spaced, then the presence of even a small amount of moisture will cause the roof to buckle relatively quickly. While improper spacing is an issue that could require the removal of the roof, it is possible to reduce the amount of moisture the sheathing is exposed to through proper attic ventilation.
Proper ventilation can be achieved in a number of ways. The roofing system should be designed so air moves through the attic regularly and in such a way that moisture is unable to build up and adversely affect the plywood sheathing. When the plywood begins to swell, it is a sign that the attic is improperly ventilated and is in need of additional air flow. There are many viable options available, including ridge vents, soffit vents or gable vents, among others. An ideal system will depend on the individual ventilation needs of the homeowner. Any system that ensures proper air intake and exhaust will reduce the likelihood of the roof beginning or continuing to buckle due to moisture.