Coverall Building Replacement in Ontario (Options for a Failing Cover)

Option 1: Membrane-Only Re-skin

If the Coverall frame is structurally sound (galvanized, no significant corrosion, welds intact), a new MegaDome-grade PVC membrane can be tensioned onto the existing structure. Cost is typically 20-30% of a full new build. Downtime is 5-10 working days. Building Depot re-skins Coverall frames across Ontario every season — we field-verify the frame first, then guarantee the new membrane.

Option 2: MegaDome Retrofit (Frame + Skin)

If the Coverall frame shows corrosion, weld failures or is out of engineering spec for current Ontario snow loads, a MegaDome retrofit replaces the frame and membrane while re-using the original foundation. Cost is 60-75% of a fully-new turnkey build. Downtime is 4-8 weeks. Best economics for operators who want a modern engineered building without pouring a second foundation.

Option 3: Full Replacement

If the foundation is undersized (Coverall often specified light footings that don't meet current OBC snow loads for Northern Ontario), a full replacement is the right move. This is a new engineering package, new foundation and new MegaDome — and it resets the 15-year membrane clock and the 50-year frame clock.

How to Decide

• Membrane holes but frame in good shape → Option 1 (re-skin)
• Frame corrosion under 20% but foundation solid → Option 2 (retrofit)
• Anywhere in Muskoka/Sudbury/Thunder Bay with pre-2015 Coverall → default to Option 3
• Insurance requires current OBC compliance → default to Option 3

What to Expect from Building Depot

We field-inspect the existing structure (free within 200 km of Toronto, cost-recovery elsewhere), issue a written report on the frame condition, and quote all three options in the same 24-hour proposal. No pressure — the goal is the option that fits your operating window and budget.