It is expensive to replace an old roof with a new roof since different parts of a roof may need to be replaced. However, it may become essential to replace an old roof in some scenarios. For example, every type of roofing material has a period of longevity and they will start disintegrating once they approach the end of the longevity period. You have to retain the service of licensed roofers in San Jose in order to replace the roof in this scenario. However, you may even need to replace the roof if the topmost layer or other parts have been significantly damaged due to storm or heavy shower. You also need to replace an old roof if a contractor notices the following signs of damage during routine maintenance.

You have to hire licensed roofers in San Jose in order to replace a roof if the majority of the shingles have been cracked or displaced due to storm or any other type of natural disaster. The cracked or displaced shingles become the main source of water leakage and may damage the walls adjoining the ceiling. It is also important to replace a roof if the majority of the shingles have been lifted by strong wind since this may loosen the sealant or the nails. This type of damage is only observed after getting on the roof. It is essential to retain the service of a roofing contractor for routine maintenance due to this reason.

The nails that become exposed due to damage to the topmost layer of the roof will be rusted. The rusted nails will fail to properly hold the shingles together and may cause water leakage. The necessity of replacing a roof will depend upon the decision of the roofers in San Jose. You may fail to notice that numerous nails have been exposed for a long period of time due to damage to the shingles. It is essential to replace the roof in this scenario. It is natural for the roofing shingles or tiles to lose granules. However, you have to replace the tiles or shingles if there is substantial loss of granules. It usually happens due to aging of the roofing tiles or shingles or due to being exposed to high-speed wind.

The roofers in San Jose will ask you to replace a roof if the shingles have become curled. It may happen due to aging of the shingles or due to incorrect lining when the shingles are being installed. Insufficient ventilation in the attic is another reason behind the curling of shingles.