I'm sorry to hear about this situation. It appears that your roof underwent a "roof-over," meaning the old shingles were left in place when the new ones were installed. While this isn't entirely uncommon in roofing practices, it’s not considered the best approach. The issue seems to be that the roofers didn’t use longer nails capable of penetrating through the multiple layers. Without this support, the shingles were unable to withstand the weight of heavy snow, which ultimately caused them to come loose. Although you mentioned the shingles themselves appear to be in good condition, based on the image you shared, the roof needs immediate replacement. Unfortunately, removing the additional layers of shingles will likely lead to higher replacement costs.

Proper roof ventilation is essential for regulating attic temperatures. To assess your ventilation, check if your attic feels excessively hot, has signs of moisture or mold, or if your energy bills are unusually high. Inspect intake and exhaust vents to ensure they’re unblocked and sufficient; typically, you need 1 square foot of vent area for every 300 square feet of attic space. If ventilation is inadequate, options include adding vents, using baffles to prevent blockages, or consulting a roofer for professional advice. Good ventilation improves energy efficiency, prevents roof damage, and keeps your home comfortable.

Hey Jay! That roof probably had a new layer put on top without removing the old roof. It's cheaper to install, more costly to remove it later.

Hey Katherine, You can call a professional roofer to remove it — and yes it needs to be removed immediately. As moss grows, it will start forcing its way under the shingles. It’ll break the seals, cause damage, and eventually leaks. Kill it with any off the shelf moss killer. Once it’s dead you can spray it off with a hose and a broom if needed. Don’t be too rough or you’ll damage the shingles. Good luck!

Hi there It’s quite rare for a roof leak to be caused by high-nailing. Typically, when a shingle is high-nailed, it prevents proper bonding with the roof, making it more susceptible to being blown off or shifting over time. Overall, I’d agree that replacing the entire roof is the best course of action, as repeatedly replacing individual shingles will likely lead to ongoing issues. I recommend reaching out to the original roofing company to see if they will honor a warranty for the work. High-nailing is absolutely a valid reason to file a warranty claim—it does not meet manufacturer specifications and should be corrected by the original roofer, regardless of whether their workmanship warranty has expired.

Many brands manufacture shingles in Canada, so you won't incur additional costs for those brands. However, most high-premium shingles are now made in the USA and will be subject to tariffs when they arrive. Considering this, the material cost typically accounts for about 50% of your total expenses. In the worst-case scenario (25% tariff and all material from the USA), you might end up paying an extra $800 per $10,000.

Hi Skye, I'm assuming your roof is not leaking. If you posted a picture it would be easier to tell what is going on. Heavy snow loads or ice damming can cause shingles to slip and rip downwards. Also if the roof is insufficiently supported. This is usually only the case in really old homes (40+ years old). But the majority of the time it is roof deck that is sagging inwards due to water damage.

Hi Parath. I've sent you an email. The workmanship on this roof is scary bad. You should consult with a professional roofing contractor to obtain an accurate estimate for the repair costs. Once you have that information, pursue legal action to claim damages.

The short answer. your roof should have been rolled out and left to "rest" for longer before installing it. I've seen worse. Structurally, this will be fine. It's purely aesthetics (unfortunately your windows are right there). A side note: Your neighbors roof has significant gaps in the insulation. That's why half the roof is darker color

If your roof pitch is less 4:12, shingles should not be installed in areas that get snow. However, with a high quality underlayment you can go down to a 2:12 roof pitch. Roofers need to be sure they know how to install for low slope roofs. This means extra care in underlayment, nail types, etc. I know that a metal roof can be a little more costly, but if your roof is less 4:12 or less, you will see a better long term investment over a shingle roof. Good luck!

Hey Laura, It's tough to give solid advice without a picture, but here are some thoughts: A sinking roof is often a sign that the roof decking—the plywood or OSB beneath the shingles—is starting to rot. Even though your roof is only five years old, that’s typically around the time when issues from poor installation start becoming apparent. There’s a chance that the roofers didn’t replace the decking when they installed the new roof, meaning your roof might not be leaking but also wasn’t fully replaced five years ago. I strongly recommend reaching out to a roofing company to inspect the area before it turns into a bigger problem.

Hi there. We are currently about 4-6 weeks depending on weather, work type, etc. If you have an emergency like a roof leak, we will do some temporary work and then schedule you in for 2-3 weeks.