It can be very difficult to tell exactly where leaks are coming from in your roof and even more difficult to tell why they have started.
You would typically experience this type of leak in the spring thaw or on sunny or mild winter days. Older Winnipeg homes are especially prone to this type of leaking due to our extreme climate and weather patterns.
When paint starts to peel off, the cause is likely trapped moisture in the house due to excessive temperature or high humidity from poor attic ventilation.
During winter months, many drywall stains called in as building leaks turn out to be caused by condensation. Because these stains can be large in size, residents are often unconvinced that condensation is the cause. Also, many longer-term residents logically question condensation as a stain cause when it hasn’t occurred in their unit before. There are many explanations for these situations.
Poor attic ventilation is again a possible cause, but any condition that results in excess moisture can contribute to decay.
This could mean your roof has vegetation, fungus, mold, or algae growth, or that the shingles’ protective granules have been lost.
Since most sections of any roofing system are obscured from ground view. Subtle warning signs can go unnoticed. Missing or curling shingles, cracked or missing tiles, bulges or any other deformities can eventually lead to a roof leaking.
A possible cause of higher cooling costs could be insufficient attic ventilation, requiring the cooling system to run excessively. In warm weather, inadequate ventilation will trap hot air in the attic.