Why is My Roof Sagging?


If you’ve ever driven by a house with a sagging roof then you’ve probably thought to yourself, “what an ugly looking house!” Not only will a sagging roof cause your house to look unattractive, but it will also put your home at risk for a collapse. Know why your roof is sagging so you can correct this problem immediately.

Damaged Material
Roofs are comprised of many different parts, but the two main components are the sheathing underneath and the shingles on top. When your roof becomes compromised with water damage these materials will weaken. The shingles can eventually become old and worn which can expose the sheathing underneath. Once the sheathing is exposed to moisture, the entire structure of the roof is vulnerable to collapsing.

The Right Material
There are many different roofing materials you can use for the shingles. Materials like slate can last anywhere from 50 to 100 years while asphalt can last roughly 20 years. Choosing a material, like asphalt, and not replacing it when it needs to can put your home at risk. Installation of the materials is just as important because if it is not properly installed, sagging can occur within months. Be sure to choose a reliable roofer when replacing your roof.

Too Much Material
Certain roofing shingles are heavier than others, so it’s important to install the correct sheathing underneath to hold the respective weight. An inadequate sheathing installation paired with a heavy shingle material can cause your roof to sag almost immediately. In addition, a buildup of snow and ice on the roof can add extra weight that the structure might not be able to handle. Be sure to properly remove this added weight after each storm to prevent damage.

Understanding why your roof is sagging can help you fix the problem before it can cause serious damage to your home. Trust the reliable roofers at Preferred Exterior to fix your sagging roof and make all of the necessary repairs that it will need. To learn more, or to schedule a free estimate, give us a call at (516) 354-7252.

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