Closed-Cell Spray Foam In Chatham, Ontario

Why It Suits Farm And Commercial Work

It is a vapor barrier at sufficient thickness. In a livestock barn, a greenhouse headhouse, a wash-down area or a cold room, that is not optional.

It bonds hard to steel and wood, leaving no cavity behind it for warm air to reach cold cladding. That is what stops condensation forming on the underside of a roof.

It is rigid, so it survives a working environment better than anything soft.

It gives the highest R-value per inch of the practical options, which matters when wall thickness is limited or you want to reach a target without losing internal space.

Structural Benefit

Closed-cell foam insulation bonded to framing and sheathing measurably stiffens the assembly against racking.

That is worth something in a pole barn or steel building, where lateral stiffness comes from bracing and cladding rather than from continuous sheathing.

It is a secondary benefit rather than a reason to choose it, and we will not oversell it. But on a long-span agricultural building it is real.

Thickness And R-Value

Because it is priced by board foot, thickness drives cost as directly as area does.

Two inches gives you roughly R-13, three inches roughly R-19.5, and four inches roughly R-26. Those are approximate and depend on the specific product.

The right thickness comes from the target, not from a rule of thumb. A condensation problem on a roof deck can be solved with less than a heated workshop needs.

We work out the thickness against what you are trying to achieve and write it into the quote alongside the R-value it delivers.

Where It Goes

We spray roof decks in barns, shops and machine sheds, and we cover that work in detail on our agricultural and farm building and shop and pole barn pages.

We insulate greenhouse headhouses, north walls and gable ends.

We line cold storage and refrigerated rooms.

We also seal crawl spaces, rim joists and basement walls in houses, which our residential spray foam page covers in full.

Anywhere there is ground contact, wash-down, refrigeration, livestock or steel cladding, closed-cell is the product we spec.

Limitations, Honestly

It costs roughly double open-cell per board foot. Where a vapor barrier is not needed, that money may be better spent elsewhere.

It expands far less than open-cell, so filling a deep cavity purely for R-value is expensive.

It is rigid and adhered, which makes it difficult to remove later. If a roof is near replacement, spraying the deck now complicates that work.

We will tell you when open-cell or something else entirely is the better answer.