Commercial Insulation Services

Pre-engineered steel buildings usually get faced fiberglass blanket draped over the purlins and girts, with the vapor-retarder facing (vinyl or reinforced laminate) toward the inside. Where blanket gets crushed at the purlins, thermal blocks or a liner system keep the R-value up. Facing seams get taped or stapled tight so moist air cannot reach the steel.

In an existing building with the roof panels staying on, retrofit work usually means a liner system hung below the purlins or spray foam applied to the panels.

Pole barns have wood posts and trusses under steel skin, so there are more options than in a metal building. Closed-cell foam on the steel stops condensation and air leaks in one step.

Batts between the girts behind a vapor retarder work for walls, and blown cellulose over a ceiling liner works when the barn has a flat ceiling. A heated shop needs a lot more than cold storage for machinery. The skirt board at the base of the wall sees splash and snowmelt, so batts stop above it and foam or rigid board covers the bottom course.

High-bay buildings lose heat through the roof in winter and gain it back in summer, so the roof and the wall-to-roof joint matter most. Clearances, racking, sprinkler lines, and lift access get checked before choosing spray foam, a liner system, or blanket.

Dock doors and the joint where wall panels meet the slab get checked too, since cold air pours in at floor level. Work runs around your shifts, with lifts staged where they will not block the docks.

Offices, clinics, and storefronts usually need above-ceiling insulation, wall cavity fill, and air sealing at the roof line. A drop ceiling gives access without much disruption. Rooftop unit curbs, roof drains, and parapet walls are common leak points worth sealing while the ceiling is open.

Evening or weekend work keeps your floor open, and dust control around tenants and customers is part of the plan.

Spray foam fits commercial buildings where the shape is irregular or air leakage is the main problem: metal roofs, block walls, and additions. Closed-cell adds R-value and a vapor retarder in one layer.

Depending on occupancy, foam in a commercial space may need a thermal or ignition barrier over it, so that gets confirmed with your building official before spraying. Residential foam work is on our spray foam insulation page.

Water dripping inside a metal building in winter is usually condensation, not a roof leak. Warm, humid air meets steel that is below the dew point, and water forms on the panels and purlins.

The fix is keeping that air off the steel: a continuous vapor-retarder facing with taped seams, or closed-cell foam on the panels, plus ventilation where vehicles, livestock, or wash bays add moisture. Frost on the underside of the roof during a cold snap is the same problem, and it rains down when the sun warms the panels.