Roofs are an integral part of your home and its structure. They don’t just protect you, but they also protect your attic and walls from moisture and the damage it can cause. They help keep your home warm or cool through harsh weather conditions and add a lot of curb appeal. But after years of sheltering your home, the mighty roof is bound to experience some signs of deterioration.

That’s when you know it’s time for repairs or better yet, a complete roof replacement. Here are some telltale signs that it’s time to say goodbye to your old roof. 

Sagging Roof

If your roof is sagging, there is no doubt that your home needs a roof replacement. But you may also want a contractor to come over and check the foundation of your home because sagging points to a more severe structural issue. 

Missing Shingles

While it is common for a shingle or two to break off or fall off, if your roof is starting to look like your teeth when you were 5, it’s too late for roof repairs and a replacement will be required. 

Moss and Algae 

Another sign is the presence of moss and algae on your roof. In this case, we would strongly advise you not to try and remedy the problem yourself. Moss and algae make surfaces extremely slippery and you could risk taking a tumble from the roof. It is better to have professionals come in and assess the situation in a safe manner. 

Sunlight in the Attic 

If one of your kids has made the attic their room or you have a small studio up there and find charming rays of sunlight coming in through the roof, don’t take stylized pictures, call a roofing contractor immediately. If sunlight is pouring in, that means your roof has cracks that will also let rainwater seep in. This can result in water damage and compromise the structural integrity of your home. 

Cracked Shingles

A few cracked shingles are nothing to worry about. A quick call to a local construction company is all you’ll need to have them fixed. But if you notice a lot of cracks across the roof, it’s time to have your shingles inspected and the roof replaced. Cracked shingles will take away your roof’s waterproofing ability. It’s best to repair or replace these as soon as you can. 

If any of the above have made a roof replacement necessary for your home, here’s how long it will likely take based on the roofing material you choose. 

Wood shakes and synthetic slate can take anywhere between 3 to 5 days. If you want a quicker fix, a flat roof will take 2 to 3 days to be installed and asphalt shingles could take as little as a day or two.

If you are not in a hurry though, and your home’s foundation can support it, concrete tile is a great option and will only take 8 to 9 days or natural slate which will take 6 to 7 days at the most. Lastly, if steel sheets are what you prefer, installation for those can last up to 4 days. 

But even with these estimates, there are other factors that may affect the duration of the installation. 


The size of your roof can add or take away from the total number of days it takes to install a new roof. The larger the roof, the longer the process will take. 

Type of Roof Decking 

The type of roof decking you have will also determine how long the replacement takes. If there’s any damage to the decking itself, you’ll have to factor in the time it’ll take to replace or repair the decking itself. 


The method of installation also counts. Re-roofing will take a lot less time as the new roof will be laid over your existing roof. But if there is a lot of underlying damage to address before the new roof can go on, the tear-off method could be used where the damaged portions are completely removed before the new roof is installed. 

While doing your own research about ‘the time a roof replacement should take’ or ‘how long your contractor should take to replace a roof’ is always good. We’d recommend calling a trusted local roofing company or roofing contractor for an honest estimate of time and cost. We’ve been in the construction business for over 45 years and our experts have been efficiently handling every roof repair and replacement that has come our way. Just give us a call on [company_phone] or fill our contact form and our experts will get in touch with you to answer any questions and offer a free estimate for the job. 

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