Waterfront properties near Orillia and Severn Township endure extreme wind gusts up to 110 km/h off Lake Couchiching, alongside heavy winter ice damming along eaves and dormer valleys. For this 3,800-square-foot timber-framed residential estate, Severn Roofing & Contracting provided a comprehensive complete tear-off and weather-defying roofing upgrade.
The Challenge: Lakefront Wind & Heavy Snow Accumulation
The homeowner was experiencing severe granule loss from 15-year-old 3-tab shingles, as well as minor water staining along dormer intersections where standard aluminum valley flashings had oxidized and buckled under winter ice loads.
The project called for a heavy-duty roofing system that blended rugged weatherproofing with high-end architectural aesthetics matching the home’s rustic stone and timber aesthetic.
Severn Roofing’s Execution Plan
Severn Roofing mobilized a 6-man specialized crew to complete the project over 3 days:
- Complete Tear-Off & Deck Repair: Removed two layers of existing shingles down to the bare plywood decking. Replaced 4 damaged plywood sheets near chimney sidewalls and reinforced all fascia board framing.
- 100% Synthetic Underlayment & Ice Barrier: Applied self-adhering modified bitumen Ice & Water shield membrane 6 feet up from all eaves, inside all valleys, around skylights, and along sidewalls—exceeding standard Ontario Building Code requirements.
- Custom 16oz Cold-Rolled Copper Valleys: Hand-bent and installed heavy 16-ounce copper valley liners and chimney step flashings, offering lifetime corrosion protection and a classic patina finish over time.
- GAF Timberline HDZ Architectural Shingles: Installed high-definition architectural shingles in Charcoal Black utilizing LayerLock technology and Dual-Phase mechanical fastening for maximum wind resistance ratings.
- Ridge Venting & Attic Airflow Balancing: Fitted Cobra continuous ridge vents to ensure proper attic heat extraction, preventing winter frost buildup and lowering attic temperatures in summer.
“Severn Roofing’s attention to flashing details around our stone chimney and lakefront dormers was second to none. The custom copper accents give our roof an incredible, handcrafted look.”
Key Case Study Metrics
| Spec Category | Detail |
|---|---|
| Location | Severn Township / Orillia Waterfront |
| Roof Slope | 9/12 Pitch Steep Slope |
| Shingle Brand | GAF Timberline HDZ Architectural |
| Flashing Material | 16oz Cold-Rolled Copper |
| Wind Resistance | Rated up to 130 MPH (Unlimited Wind Warranty) |
| Contractor Website | https://severnroofing.ca |
Clean Cleanup & Final Walkthrough
Severn Roofing utilized magnetic nail sweepers across all lawn and driveway areas, ensuring zero debris remained. The homeowner received GAF’s Golden Pledge 50-year non-prorated material and labor warranty.
For residential roof replacements, lake cottage re-roofing, or exterior contracting in Orillia and Severn, check out Severn Roofing & Contracting.