Loose Fill Insulation Rosslyn

Blown-in insulation for Rosslyn attics and closed cavities

Blown-in material fills the awkward parts of an Rosslyn building that batts leave gapped — around cross-bracing, over the top plates of interior walls, into the shallow triangle at the eaves. It settles over time, which is why it is specified at a settled depth rather than the depth it looks on the day. Air sealing comes first, because loose material laid over an open ceiling penetration hides the leak instead of stopping it.

• Baffles at the eaves so soffit venting stays clear
• Even coverage carried right out over the top plates
• Ceiling penetrations air-sealed first, not buried
• Depth read back at the corners, not just where the hatch is
• Existing material assessed — topped up, or removed if it is wet or contaminated
• Settled depth specified and marked before the hose starts

Loose Fill Insulation Rosslyn

Knob-and-tube and older wiring

Rosslyn drywall in context

What we hand over at the end

Access, hoses and how much of the house we cross

Moisture is what ruins it

Cellulose or fibreglass, and when it matters

The material must not block the eaves

Simple, clean, on schedule — Drywall in Edmonton

Loose Fill Insulation Rosslyn: your questions answered

Can you just add over what is already up there?

Usually, and it is the best value if the existing material is dry, even and uncontaminated. If it is damp, matted, rodent-affected or hiding unsealed penetrations, adding over it buries the problem — we tell you which one we found.

What about my pot lights?

Older recessed fixtures are not all rated to be covered and loose-fill packs right against them. We check the rating, and where they are not rated they get a proper clearance detail that is also sealed, rather than being buried and hoped about.

Cellulose or fibreglass?

Both work. Cellulose is denser, packs into odd shapes and resists air movement through it better; fibreglass is lighter, which matters on a ceiling of uncertain strength. Where there is existing material, matching it is usually simpler than layering the other over it.

My bathroom fan vents into the attic. Does that matter?

A great deal — it is the fastest way to soak an attic from inside. We look for it while the space is open and flag it before covering anything rather than blowing over the top of it.

How do I know I got what I paid for?

Bag count. Every bag states the area it covers at a given depth, so bags used divided by area is exactly what went in. We keep them, mark the target settled depth, and read the depth back at the corners rather than the middle.

Will it make the house quieter?

It noticeably reduces airborne noise from outside — traffic, aircraft, neighbours. It does very little for footsteps from a floor above, which travel through structure, and we would rather say which half it fixes.