During British Columbia’s freeze-thaw cycles, ice damming occurs when snow on the roof melts and then refreezes at the colder eaves. This process creates a barrier of ice that forces water back up and under your shingles, leading to significant leaks.
The damage is often compounded by the repeating nature of these cycles:
- Widening Cracks: Water that seeps into small gaps in the roofing materials freezes at night and expands. This physical expansion widens existing cracks in the shingles.
- Compromised Seals: The constant expansion and contraction during these temperature swings compromise the shingle seals over time, allowing moisture to penetrate the roof structure.
- Eave Vulnerability: Because the eaves are typically colder than the rest of the roof, they are the primary site for ice buildup, which puts extra stress on the lower sections of your roofing system.
We recommend regular attic ventilation checks and proper underlayment to mitigate these risks. If you suspect your roof has been affected by recent temperature swings, you can claim your complimentary roof inspection to ensure your home remains protected. Please note that warranties vary by manufacturer and installation, and insurance coverage for roof damage depends on your specific homeowner’s policy and the cause of damage.
Related FAQs
-
What are Common Issues with Tpo Roofing?
Read More »: What are Common Issues with Tpo Roofing?In the Lower Mainland and British Columbia environments, TPO roofing systems commonly face several physical and structural challenges. The most frequent issues include: Seam Failures: Often caused by thermal expansion and contraction during BC’s freeze-thaw cycles, compromised seams are responsible…
-
How Much does Tpo Roofing Cost per Square Foot?
Read More »: How Much does Tpo Roofing Cost per Square Foot?In British Columbia, particularly within the Lower Mainland and Metro Vancouver regions, the cost for TPO roofing typically ranges from $2.50 to $4.50 per square foot installed. This estimate generally includes both materials and labor. However, some factors can influence…
-
Is Tpo Roofing Good for Flat Roofs in Bc?
Read More »: Is Tpo Roofing Good for Flat Roofs in Bc?TPO (Thermoplastic Polyolefin) roofing is considered a premier choice for flat and low-slope roofs in British Columbia due to its ability to withstand the province’s unique climate. In the Lower Mainland and Metro Vancouver, where heavy rains, coastal winds, and…
-
What is Tpo Roofing and What are its Advantages?
Read More »: What is Tpo Roofing and What are its Advantages?TPO (Thermoplastic Polyolefin) roofing is a single-ply flat roofing membrane composed of a blend of polypropylene and ethylene-propylene rubber. It is designed to provide a seamless, waterproof barrier for flat and low-slope structures. In British Columbia’s climate, TPO roofing offers…
-
Can Asphalt Shingles Handle Bc Rain?
Read More »: Can Asphalt Shingles Handle Bc Rain?Yes, asphalt shingles are specifically designed to handle the heavy rainfall common in British Columbia. They are a popular choice for homeowners in Vancouver and the Lower Mainland because their layered construction—consisting of fiberglass mats, asphalt coatings, and mineral granules—effectively…
