Frequently asked Questions:
General Roofing Questions (FAQ)
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1. How long does a typical roof last?
Most roofing systems last 20–30 years, depending on the material, installation quality, ventilation, and maintenance. Premium systems such as metal or high‑grade shingles can last 40–50 years.
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2. How do I know if my roof needs replacement or just repairs?
Signs you may need replacement include widespread shingle failure, chronic leaks, sagging, or moisture intrusion in the attic. Localized issues—like a small leak, flashing damage, or a few missing shingles—can often be repaired. A professional inspection determines the best option.
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3. What causes roof leaks?
Common causes include failed flashing, ice damming, aging shingles, improper installation, clogged gutters, and penetrations around vents or chimneys. Building‑envelope issues such as poor air sealing or inadequate insulation can also contribute.
4. How long does a roof replacement take?
Most residential roofs take 1–3 days, depending on size, complexity, weather, and material type.
5. Do you work year‑round?
Yes—roofing and building‑envelope work can be performed year‑round, though extreme cold or heavy precipitation may affect scheduling and material handling.
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General Building Envelope Questions
6. What is the building envelope?
The building envelope includes all components that separate the interior from the exterior—roofing, walls, insulation, air/vapour barriers, windows, doors, and foundation systems. Its purpose is to control air, water, heat, and vapour movement.
7. Why is proper building‑envelope design important?
A well‑designed envelope improves energy efficiency, prevents moisture damage, reduces drafts, and extends the life of the structure. Poor envelope performance is one of the leading causes of building deterioration.
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8. What are common building‑envelope failures?
Typical failures include air leakage, vapour barrier discontinuities, insufficient insulation, poor flashing details, condensation buildup, and water ingress at penetrations or transitions.
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9. How do you diagnose building‑envelope issues?
Assessment may include visual inspection, moisture probing, thermal imaging, blower‑door testing, and reviewing construction details. The goal is to identify the root cause—not just the symptoms.
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10. What is the difference between air barrier and vapour barrier?
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Air barriers stop uncontrolled air movement.
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Vapour barriers limit moisture diffusion. They serve different functions and must be placed correctly within the wall or roof assembly to avoid condensation problems.
Maintenance & Performance Questions
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11. How often should my roof be inspected?
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At least once per year, plus after major storms. Regular inspections catch small issues before they become costly failures.
12. What maintenance does a roof require?
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Typical maintenance includes clearing debris, checking flashing, sealing penetrations, cleaning gutters, and monitoring attic ventilation and insulation.
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13. Can poor attic ventilation damage my roof?
Yes. Inadequate ventilation can cause premature shingle aging, ice dams, condensation, mould growth, and structural damage.
Cost & Warranty Questions
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14. What factors affect roofing cost?
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Material type, roof size, pitch, complexity, underlayment requirements, disposal, and any necessary structural or envelope repairs all influence pricing.
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15. Do you offer warranties?
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Most systems include a manufacturer’s warranty on materials and a workmanship warranty on installation. Warranty length varies by product and service level.