Structural Drying & Dehumidification in Vancouver

Kitsilano plaster looks dull on the face while the lath behind it is still wet. We open the wet area and set air movers on the cavity. Pins go into the wood lath, and an LGR runs so the grains fall as that wood lets go.

Every morning those pin spots and the inlet and outlet grains hit the grain log. Grain depression has to stay wide or the lath reading stalls. The target is a dry lath sample in an unaffected wall of the same house, within a few points, stable overnight. Paint colour never closes the line.

Dunbar fir cups when the room gets hot and the humidity stays up. Hastings-Sunrise floors do the same. Any heat runs with an LGR beside it. We pin the boards and the subfloor at marked spots, and air movers wash along the grain.

Those pins and the grain depression go on the log each morning. A collapsing surface reading with a high core means we eased off the heat. The goal is a few points from a dry fir board in that house, held overnight. Mount Pleasant fir gets the identical routine when a slow leak has sat in the floor.

East Vancouver basements sit low and cool. The bottom plate lags the rest of the room. Air movers go at the base of the wet wall, the LGR sits where grains actually drop, and overhead joists get a stream in the bay if the water reached them.

Pins in the plate, pins in any wet joist, and a pinless check of the slab share the grain log with inlet and outlet grains. Wood should finish near the pin we took on an upstairs joist in the house and hold overnight. A narrow grain depression means we move the LGR before we blame the building.

Marpole garages and ground slabs stay cool under vinyl and tile. The covering comes up, mats go down, and air movers cross the face. Concrete suites wet from the unit above take the same path. An LGR cuts the grains in that closed room.

A pinless grid, same squares each day, joins the grain log with the depression number. The slab target is a drier patch of the same pour, and the gap has to hold overnight. Wet plates or sleeper edges get pins, aimed at a dry wood sample a few points away.