Spray Foam Insulation in Ponoka, AB.

66% single-detached is close to the middle of the range for this region, which means roughly a third of Ponoka's dwellings share a wall, a floor or a roof with another unit.

Older attached housing is where the diagnosis gets awkward. Air moves between units through party-wall cavities, shared attic spaces and common mechanical chases, so a cold bedroom in one suite can be driven by an unsealed penetration in another. Half the town's dwellings predate the era of continuous air barriers, and in the attached share of them the barrier was not merely thin — it was frequently not a single surface at all.

Ponoka draws its winter figures from RED DEER REGIONAL A (climate ID 3025480), about 59 km south: 5,619 heating degree days at an 18 °C base, an average January daily minimum of -17.6 °C and a recorded extreme of -43.8 °C. There is no station in Ponoka; this is the regional normal for the Red Deer stretch of the corridor, borrowed northward.

Three named facilities anchor Ponoka, and they are unusually varied. The Ponoka Industrial Airpark sits at the Highway 2A/53 junction with rail access. The Centennial Centre for Mental Health and Brain Injury — which includes the named Halvar Jonson Centre for Brain Injury — is a major provincial employer. The Calnash Ag Event Centre hosts regional agricultural events.

A healthcare campus, an airpark and an event centre are three different envelope problems: continuously occupied clinical space with tight temperature and humidity requirements, hangar-type structures with very large door openings, and a big intermittently heated volume. None of them is solved the way a house is.