To meet current code requirements and ensure the roof performs well, the roof deck should be solidly sheathed with plywood or OSB (or equivalent materials). This provides a stable surface, allowing nails to fully penetrate and hold the shingles securely. Installing shingles on a spaced deck can result in improper fastening, voiding the manufacturer’s warranty and risking premature shingle failure.
Why a Solid Deck Matters
A solidly sheathed deck ensures that shingles are securely fastened, which is crucial in a climate like Minnesota’s, where roofs must withstand high winds, heavy snow, and fluctuating temperatures. Properly secured shingles help prevent wind uplift, water infiltration, and other common roofing issues.
Conclusion
If your home has spaced decking, it’s advisable to re-sheath the roof before installing new shingles. This step not only brings the roof up to code but also ensures compliance with manufacturer guidelines, protecting your investment and extending the life of your roof. At Foremost Exteriors, we prioritize doing the job right, ensuring every nail is properly secured to give you a roof that lasts.