Canadian Roof Assessment Guide

Your roof is your home's first line of defense against Canada's diverse and often extreme weather conditions. From heavy snow loads in winter to intense UV exposure in summer, Canadian roofs must withstand significant environmental challenges.

This comprehensive guide will help you understand your roof's condition, maintenance needs, and when replacement becomes necessary. We've included Canadian-specific information on costs, materials, and climate considerations.

Exterior Signs (Ground Inspection)

• Missing or damaged shingles

  Look for bare spots or curled/cracked shingles

• Sagging roof deck

  Indicates structural problems requiring immediate attention

• Moss or algae growth

  Common in shaded or north-facing roof sections

• Damaged flashing

  Check around chimneys, vents, and roof intersections

Interior Warning Signs

• Water stains on ceilings

  Yellow/brown discoloration indicating active leaks

• Attic leaks or moisture

  Check after heavy rain or during spring melt

• Outside light visible through roof

  Inspect attic during daytime for light penetration

• Increased energy bills

  May indicate heat loss through poor roof insulation

• Complete roof inspection

  Check for winter damage after snow melt

• Clean gutters thoroughly

  Remove debris accumulated over winter

• Trim overhanging branches

  Reduce risk of damage during summer storms

• Remove leaves and debris

  Prevent water backup during fall rains

• Check for loose materials

  Secure anything that might be vulnerable to winter winds

• Inspect attic insulation

  Ensure adequate protection against heat loss

• Monitor snow buildup

  Remove excessive snow loads (> 30cm/12in) with a roof rake from the ground.

• Check for ice dams

  Look for ice buildup at roof edges and gutters

• Maintain attic ventilation

  Ensure vents remain unblocked by snow

• Check for storm damage

  Inspect after severe weather events

• Address algae/moss growth

  Clean with appropriate products if necessary

• Evaluate overall condition

  Plan for repairs during good weather

Selection Criteria

• Proper licensing and insurance

  Verify WCB coverage and liability insurance specific to your province

• Manufacturer certifications

  Certified contractors can offer extended manufacturer warranties

• Local references

  Ask for examples of work completed in your neighborhood

• Detailed written estimate

  Should include scope of work, materials, timeline, and warranty details

• Membership in industry associations

  Look for provincial roofing association membership

Red Flags to Watch For

• Door-to-door solicitation

  Especially after storms - reputable companies rarely use this approach

• Significantly lower bids

  Very low estimates often indicate substandard materials or practices

• Pressure tactics

  Pushing for immediate decisions or large upfront payments

• No physical address

  Legitimate companies have established locations

• Unclear or verbal warranties

  Warranties should be detailed in writing