Machine shed spray foam insulation in Lethbridge protects the equipment that southern Alberta's irrigated farming runs on. These are large steel buildings on operations where the machinery represents a substantial investment and where the season it has to be ready for is short.
Irrigation equipment and what it costs to replace
Pivots, pumps, motors and control gear are expensive, they contain a great deal of electrical and mechanical hardware, and they are exactly the kind of thing that suffers from repeated wetting. Unlike a tractor, much of this equipment sits for long periods between uses, which is when condensation does its work. An owner weighing a shed against a heating bill is weighing the wrong number; the comparison is against what is parked under the roof.
The dry-climate exception that is not one
The most common objection here is that southern Alberta is dry, so condensation should not be an issue. The outdoor humidity is not what matters. What matters is the moisture already inside the building, from the ground, from equipment brought in wet, and from air that entered on a mild day and then met cold steel. Dry cold air outside makes the cladding colder, which makes the underside of the roof a more effective condensing surface rather than a less effective one.
Wind-driven moisture through the laps
In this part of the province rain and snow do not simply fall, they arrive horizontally. Water is pushed through panel laps and around fastener heads on the windward face in a way it never is elsewhere, and it appears inside as damp streaks that look like a roof leak. Sealing the inside face of the cladding closes those paths from the other side, which is often the only practical way to address them on an existing building.
Sizing the job to what is parked in it
The right scope depends entirely on the contents. A shed holding steel, pipe and implements needs the roof deck treated so nothing drips on them. A shed holding electronics, control gear or anything that must stay above freezing is a different and heavier specification. Establishing what lives in the building settles the scope faster than measuring it does, and on most Lethbridge operations the answer is already obvious to the owner.
Machine Shed Spray Foam Insulation Lethbridge: Common Questions
It is dry here. Why does my shed condense? Because the moisture is already inside the building rather than in the outdoor air, and cold dry weather makes the steel a better condensing surface.
Water comes in during a storm but the roof is sound. How? Wind drives rain and snow through the panel laps and around fasteners on the exposed face. Sealing the inside face closes those paths.
Roof only, or the whole building? It depends what is stored. Implements need the roof treated; control gear and anything that must stay above freezing needs more.
Size the deck with the R-value calculator, then get a free Lethbridge quote. More on Machine Shed Spray Foam Insulation Alberta.