Roof failure that keeps persisting despite repairing is indeed a sign that it is time for replacing the roof, but many times, replacement may be required even if the roof does not fail but reaches the end of its life. Normally, the roof will look worn and damaged after many years, and if it is close to the end, then delaying the replacement will cause bigger problems later.
Inspecting the roof, preferably by some experts belonging to Roofing Cherry Hill NJ – American Construction & Roofing, will help to understand if roof replacement is due. However, there are some signs that homeowners can look for to determine if it would be necessary to replace the roof of some repairs and restoration measures that could delay the event.
How old is your roof?
The kind of construction and roofing material determines how long it will last. Some roofs may last less if the material quality is poor, installation is faulty, and there is a lack of maintenance. Going by the thumb rule and assuming that roofs are well looked after, an asphalt shingles roof should last between 12-15 years, depending on the style and material of the shingles. Metal roofs have a longer life span and can last for 40-50 years. Tile and slate roofs last the longest for almost a century but are much expensive and not much in use today. As the roof nears its end, you must prepare for replacing it, more so if you had installed a new layer over the roof when repairing it, a practice known as overlaying.
Damaged and missing shingles
Since the roof has to brave the elements of weather like sun, rain, snow, and storm, it undergoes tremendous stress that leads to wear and tear and damages set in slowly. The components of the roofing materials become weak with time, and shingles might crack or curl or even go missing. If on checking the gutter system, you observe the accumulation of black granules, it shows that the protective layer on the shingles is wearing away and increasing the vulnerability. Replacing a few missing or damaged shingles might work for some time, but if the damage is more extensive, then replacing the roof is a better option.
Flashing protects the roof joints from moisture penetration. As long as the flashings are intact, there is nothing to worry. But if you find the flashing made from tar, roof cement or metal damaged, degraded or missing, then the chances of roof damage are very high as water can seep through the roof. Detecting the damage early and repairing it can allow the roof to last for the remaining years.
Discolored walls and ceilings
If you notice dark stains and discoloration of the exterior walls as well as the ceilings and the walls adjoining it, then it is a clear sign of water penetration through the roof. The roof structure might also become weak if water reaches it.
Water damage does the most harm to roofs, and replacing it with a new one is the only solution.