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Indications That Your Roof Requires Immediate Repair

  • Writer: Angel's Roofing
    Angel's Roofing
  • Sep 16
  • 9 min read
Roof repair in Calgary

Identifying signs of roof damage is critical in safeguarding your home and preventing expensive roof repairs. Calgary’s tough winters and unpredictable weather can take a toll on your roof, causing leaks, missing shingles, or sagging.


At Angel’s Roofing, we know what it takes to keep your roof in peak condition, protecting your home 365 days a year. Know how to identify these signs early and get a complimentary estimate for assistance today.


Early Warning Signs of Roof Damage


It may begin small, but recognizing the early warning signs of roof damage can save you a fortune in repairs. Routine checkups help homeowners identify problems before they worsen. Below are key signs to look out for:


  • Missing or damaged shingles: Shingles that are missing, cracked, chipped, or warped expose the roof to water intrusion. Creased shingles or shingles with granule loss are a sign of wear and tear — storm or no storm. Calgary’s freeze-thaw cycles can exacerbate these problems — so thorough inspections remain crucial.

  • Granule loss: Asphalt shingles naturally lose granules over time; however, excessive granule accumulation in gutters or downspouts may indicate aging shingles. This leaves the substrate exposed and the roof more susceptible to leaks.

  • Moss, algae, or lichen: Growth on your roof isn’t just cosmetic. It holds moisture against the shingles, increasing decay. Moss, which is prevalent in Calgary’s shady or wet spots, needs to be addressed immediately.

  • Damaged flashing and vent boots: Rusted, bent, or loose flashing around chimneys, vents, and skylights can allow water to seep in, similar to cracked vent boots, which can tear apart the roof’s waterproofing. These spots are vulnerable to damage, especially in cases of heavy snow or ice.

  • Clogged gutters and downspouts: Debris or shingle granules in gutters may indicate roof deterioration and cause water backup, which puts added stress on the roof and potentially leaks.

  • Sagging roof deck: An uneven or sagging roof often points to structural issues or water damage. This is a significant issue that requires professional evaluation.

  • Ice damming: Calgary winters often cause ice dams, where melting snow refreezes at the roof edge. This can wreck shingles and cause leaks if not taken care of.

  • Water stains or increased energy bills: Signs like ceiling stains or rising heating costs may indicate poor insulation due to roof damage.


Calgary Weather

Weather-Related Roof Damage


Being located in Calgary, weather-related roof damage is a constant concern for our homeowners due to the changing climate. It’s essential to recognize the types of damage to look for and how to identify them.


1. Wind Damage

Wind can rip off or blow the shingles completely off, exposing the roof underlayment to rainwater. Check for missing, loose-edged or creased shingles – all signs of wind turbulence.


Calgary often gets Chinook winds, which can increase this damage. Shingle seals may loosen over time, even if the shingles themselves don’t appear damaged.


2. Storm Damage


Fallen limbs or debris during severe storms pose a significant risk to roofs. Large branches puncture the roof surface, and smaller debris dents or cracks.


Hailstorms are especially bad since hail can ‘bruise’ shingles, causing granules to fall off and reveal the material underneath. Here’s the key — about 70% of hail damage cannot be seen from the ground — you need a professional inspection after an event.


3. Water Infiltration


For instance, heavy rain, melting snow, and ice dams are key factors in water-related roof damage. Freezing and thawing cycles create ice dams that let water back up underneath shingles, so it leaks.


Following a significant rain, check for water stains inside or in the attic–they can be an indicator of moisture accumulation. Neglected water infiltration can escalate these numbers, sometimes upwards of $ 15,000, for widespread damage.


Inspection Techniques for Hidden Damage


Roof damage isn’t always easily seen – making inspections crucial to preserving a structure. These are some techniques you can use to detect covert damage and help keep your roof in good shape!


Use Attic Access to Identify Hidden Leaks or Moisture


The attic is usually the telltale sign of hidden damage. Water stains, mould, or damp insulation are all red flags that can signify leaks or inadequate ventilation.


After a thunderstorm, check the attic for new stains and/or dripping water, which may indicate active leaks. Mould/mildew in this area is a red flag that moisture has been affecting the home for a long time and could compromise its strength.


Inspect Roof Decking and Structure


Careful inspection of the roof decking and framing is imperative for identifying early indications of rot or sagging. Shine a flashlight across the decking from inside the attic, which may reveal dark spots, soft areas or visible sagging.


Rot in the decking can compromise the roof’s load-bearing capability and create safety concerns. Test metal elements like flashing and vents, since rust or cracks can allow water to get in.


Utilize Advanced Tools for Hard-to-See Areas


For more inaccessible areas, more sophisticated equipment such as infrared scanners or drones provides good alternatives. Infrared inspections identify temperature variations, which reveal moisture that might be lurking under the surface.


Drone inspections provide a detailed view of the roof, detecting missing shingles, algae growth, or worn flashing without the hazards associated with climbing. They are especially valuable after hail or severe weather events, which are typical of Calgary’s volatile weather patterns.


Technique

Benefits

Attic inspection

Detects leaks, mould, and moisture

Decking and structure check

Identifies rot or sagging

Infrared and drone tools

Reveals hidden or hard-to-see damage

Roofing Materials and Damage Variations


Roofing shingles

Roofing materials largely determine the type of damage they can sustain. Each comes with its own vulnerabilities that homeowners should be aware of to maintain and repair it appropriately. Below are common roofing materials and their potential damage variations:


  • Metal Roofs: While durable, metal roofs can face issues such as rust, corrosion, and dents caused by hailstones. In Calgary’s climate — where hailstorms are common — these damages can cause issues to your roof’s integrity if ignored. Protective coatings and regular inspections can help mitigate these risks.

  • Flat Roofing Systems: Often used on commercial properties, flat roofs are prone to pooling water, leaks, and seam failures. Snow load in Calgary winters can add to these issues, as melting snow can cause water to pool. Effective drainage and regular inspections are crucial for preventing water damage and structural stress.

  • Cedar Shingles: Known for their natural appearance, cedar shingles are susceptible to wood rot, insect infestations, and splitting. Exposure to moisture for longer periods – particularly in shaded areas – encourages faster decay. Periodic cleaning of moss and debris, along with pest repellent treatments, can help increase their longevity.


Calgary roofs get their fair share of ice dams, snow loads and tree debris. Ice dams can cause leaks and damage the sheathing as snow melts and refreezes.


Moss growth, which is typically stimulated by moisture and organic matter, should be treated with a low-pressure hose after applying a cleaning chemical. Regular gutter cleaning and inspections are crucial for maintaining a well-functioning roof system.


Cost of Ignoring Minor Roof Issues


Ignoring small roof issues can be costly and may even lead to long-term structural problems. Taking care of it now keeps you from facing compounded damage, cost, and risk to your home’s value later. Here are some important points to know why ignoring minor roof problems can be costly.


Checklist: Costs of Ignoring Minor Roof Repairs

  • Minor Repairs: Fixing a few missing shingles typically costs between $150 and $500. Ignoring them can lead to structural damage requiring a new roof — $5,000 to $15,000 and up.

  • Water Damage: Leaks that go unnoticed or ignored can cause ceiling stains, which cost $500 to $2,500 to repair. Mould remediation adds another $1,000 to $6,000 to the total.

  • Structural Repairs: Prolonged exposure to moisture can compromise wooden beams or rafters. Repairing structural damage costs $2,000 to $10,000.

  • Foundation Damage: Water intrusion from poor drainage can harm your home’s foundation, costing $5,000 to $30,000 to fix.

  • Higher Energy Bills: Damaged roofs allow air leakage, increasing heating or cooling costs by $200 to $600 annually.

  • House Value Impact: Neglected roofs can reduce a home’s market value by 5-10%. Emergency repairs before sale could be $5,000 to $15,000.


Address Leaks Early


Even small leaks can spread quickly. Water infiltration begins weeks or months before it becomes visible, resulting in mould, rotting wood, and compromised insulation. Fixing early saves you costly repairs later and protects your indoor air quality.


Avoid Structural Damage


Moisture over time weakens structural elements inside, such as rafters, beams, or decking. When drainage problems are ignored, they can exacerbate the issue, causing repair costs to spiral out of control.


Protect Home Value


Here’s the cost of ignoring minor roof issues. Buyers are notorious for demanding deep discounts or costly emergency repairs if they notice any roof issues.


Ventilation and Insulation Impact


Ventilation and insulation play a key role in protecting your roof. They control attic temperature and humidity, maintaining comfort throughout the year and preventing roofing materials from early deterioration.


The table below highlights their impact:

Aspect

Effect on Roof Health

Temperature Regulation

Prevents overheating in summer and ice dam formation in winter.

Moisture Control

Reduces mould growth and structural damage.

Energy Efficiency

Decreases cooling and heating costs by limiting heat transfer.

Extended Roof Lifespan

Minimizes material stress and degradation caused by temperature fluctuations.

Verify that the insulation is adequate to prevent ice dams, minimize energy loss, and reduce excessive heating costs.


For example, inadequate insulation results in ice dams during Calgary winters. Warm air leaking into the attic melts roof snow, which then re-freezes at the eaves, creating ice dams.


These impede drainage, enabling water to leak under shingles and harm the roof or walls. Good insulation, preferably two layers crosswise, at least 50 mm (2 inches) thick, minimizes heat loss. Insulation should be kept away from chimneys and recessed light fixtures.


Check for blocked soffit vents or ridge vents that may restrict airflow and cause roof issues.


Ventilation ports need to be free and clear. When combined with 50% continuous soffit vents and 50% ridge or gable vents, balanced ventilation prevents excessive humidity and frost buildup.


Blockages can cause musty odours, moisture retention, and even structural decay. These vents must be kept clean to function optimally.


Maintain balanced attic ventilation to extend the lifespan of the roofing materials and structure.


Proper attic ventilation minimizes heat accumulation in summer and moisture in winter. This shields shingles, underlayment, and wood from cracking, warping, or rotting.

By providing ventilation, homeowners can prevent expensive damage and increase their roof’s longevity.


Seasonal Changes and Roof Maintenance


Seasonal changes in Calgary can be particularly tough on roofs, and regular maintenance is crucial for avoiding long-term damage. The shifts between warm days and freezing nights cause roofing materials to expand and contract, potentially resulting in cracked or loosened shingles over time. Taking care of these problems seasonally prevents expensive repairs and keeps your roof well-prepared to withstand the weather.


Prepare for winter storms by inspecting your roof for loose shingles, clogged gutters, and potential ice dam risks.


As the seasons change, inspect your roof for loose, missing, or damaged shingles before winter arrives. When your roof needs repair or replacement, act quickly to prevent water from entering as snow starts to fall. Ensure your clogged gutters are cleared, as they can reduce the risk of ice dams, which can push water under shingles and into your house.

Ice dams are prevalent in Calgary’s brutal winters, and this step is vital for homeowners. Examine the flashing and sealants surrounding vents and chimneys to make certain they’re watertight.


Conduct routine roof inspections after summer storms to identify storm damage or leaks.


Summer storms, accompanied by hail or heavy rain, can cause significant damage to your roof. Following these storms, conduct a visual inspection from the ground to check for missing shingles, sagging gutters, or algae stains. Be sure to inspect the flashing and caulking around chimneys and vents, as these are common leak-prone areas.


Regular storm inspections detect small problems before they become large structural issues.


Clean gutters and downspouts regularly to prevent water runoff issues during heavy rains


Your gutters and downspouts are clogged, and water is pooling on your roof. Routine cleaning, particularly before the rainy season, helps maintain water flow away from your home. It’s a good routine for roof health, as water accumulation can deteriorate roofing materials over time.


Schedule seasonal maintenance to address weather-related wear and ensure roof longevity


Take care of some seasonal maintenance at least twice a year—in the spring and fall—and your roof will thank you for it! Leave ventilation and moss or algae removal, which can degrade shingles, as summer priorities.


In the fall, get ready for winter by nailing down loose shingles, sealing flashing and removing debris. Collaborating with experts ensures meticulous attention and lasting resilience.


Angel's Roofing Logo

Conclusion


Identifying roof damage early can save you time, money and stress. From hairline fractures to missing shingles to hidden leaks, addressing issues promptly protects your home and prevents major concerns. Calgary’s weather requires robust, properly cared-for roofs, and consistent inspections are what really count.


Angel’s Roofing delivers over 25 years of experience to every project. Our crew understands the impact of Alberta’s weather on roofs and provides solutions designed to withstand it. From minor repairs to complete replacement, we emphasize quality, safety and customer satisfaction.


Don’t let small problems develop into expensive headaches. Contact Angel’s Roofing now for a complimentary estimate or consultation. Let’s keep your roof resilient for seasons to come.

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