Machine shed spray foam insulation in Medicine Hat addresses a problem most of the province does not have to the same degree. Here the shed is often too hot rather than too cold, and the swing between the two is what does the damage.
Heat is the local problem
An uninsulated steel shed in this climate becomes an oven through the afternoon. That matters for anything stored in it that is affected by temperature, it matters for anyone who has to work in it, and it matters for the rubber, plastics, fluids and seals on equipment parked underneath. Owners elsewhere in Alberta think of a machine shed as a winter question; here it is a year-round one and summer is frequently the more expensive half.
The night-time swing
The clear skies that make the days hot also make the nights cool quickly, and that daily swing is the mechanism behind most condensation here. Steel that has been in the sun all day radiates its heat to a clear sky after dark and drops below the dew point of the air inside, and moisture collects on it and falls. It is why owners report drips on nights that are not cold, and why the problem appears in the warm months rather than only in winter.
Where a shed holds chemical or fertiliser
A building used to store agricultural inputs has a stronger case again, because temperature swings and moisture both affect what is being kept. Anything that draws moisture from the air is doing so faster in a building that condenses on its own roof every clear night. Establishing what is stored is the fastest route to the right scope, and it frequently changes the answer from roof-only to something more complete.
What the right scope usually is
For heat and condensation together the roof deck is the primary surface, because it takes the sun and it is where the moisture forms. Walls come in where the building is worked in or where the contents need a stable temperature rather than simply a dry one. Being clear which of those applies prevents paying for a full envelope on a building that needed a roof, and on most Medicine Hat operations the answer is settled in a single walk through the building.
Machine Shed Spray Foam Insulation Medicine Hat: Common Questions
Ours is unbearable by mid-afternoon. Is that fixable? Yes, and it is the same work that addresses the winter side. The roof takes the sun and radiates it inward, and insulating it removes that path.
It drips on nights that are not cold. Why? Clear skies here let the steel radiate its heat away quickly after a hot day, dropping it below the dew point of the air inside.
Roof only, or walls too? The roof for heat and condensation. Walls where the shed is worked in or where the contents need a stable temperature rather than just a dry one.
Size the deck with the R-value calculator, then get a free Medicine Hat quote. More on Machine Shed Spray Foam Insulation Alberta.