(343) 321-0218
info@burnhambrothers.com
Ottawa, ON
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Roof Ventilation Installation in Ottawa

Proper attic ventilation prevents ice dams, mold, and premature roof aging. Expert installation of ridge vents and intake ventilation.

Get Your Free Estimate Call (343) 321-0218
/ Ventilation Overview

Why Roof Ventilation Matters

Your attic needs both intake and exhaust ventilation to remove moisture and prevent heat buildup that causes ice dams.

Attic Ventilation Functions

  • Removes Moisture: Prevents mold and wood rot in attic
  • Prevents Ice Dams: Cold roof surface prevents ice buildup
  • Extends Roof Life: Reduces heat damage to shingles
  • Improves Energy Efficiency: Reduces cooling costs in summer
  • Prevents Premature Aging: Keeps roof cooler and longer-lasting

Ottawa's Climate Demands Proper Ventilation

Ottawa's freeze-thaw cycles and heavy snow create ice dam conditions. Proper ventilation keeps your roof cold, preventing melting that leads to ice dams and interior water damage.

Attic Ventilation System Flow Diagram
/ Ventilation Options

Ventilation Types

Ridge Vents

  • Installed along entire peak of roof
  • Provides continuous exhaust ventilation
  • Best option for balanced ventilation systems
  • Requires soffit intake vents for balance

Gable Vents

  • Mounted at gable ends of house
  • Supplementary ventilation option
  • Often used with ridge vents
  • Can work independently on some designs

Soffit Vents (Intake)

  • Installed under roof eaves
  • Provides intake air into attic
  • Critical for balanced ventilation
  • Must be clear of insulation blockage

Roof Vents (Turbine/Power Vents)

  • Individual vents on roof surface
  • Extract hot air from attic
  • Power vents use fan for active exhaust
  • Can supplement ridge vents if needed
/ Sizing & Planning

Ventilation Calculation

Proper sizing ensures effective ventilation for your attic space.

Ventilation Rule

General guideline: 1 square foot of ventilation per 150 square feet of attic space (with balanced intake and exhaust). This rule varies by climate and design.

Common Issues

  • Insufficient ventilation: Ice dams, mold, moisture damage
  • Unbalanced ventilation: Poor air circulation, hot spots
  • Blocked soffit vents: No intake, ventilation fails
  • Poor vent placement: Vents don't create proper air flow
/ Common Questions

FAQ: Roof Ventilation

Yes, especially in Ottawa's climate. Proper ventilation prevents ice dams and extends roof life significantly.
Feel for air exhaust from roof vents. Check soffit vents for blockages. Schedule professional inspection if uncertain.
No. This causes ice dams and mold. Proper ventilation is essential year-round.
When damaged, deteriorated, or not functioning. Typically 20-30 years, can last longer with maintenance.

Professional Roof Ventilation Installation

Prevent ice dams and extend roof life with proper attic ventilation. Expert design and installation for Ottawa homes.

Get Your Free Estimate Call (343) 321-0218
Get Free Estimate (343) 321-0218
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