Attic Insulation

Air Chute

Styrofoam baffle used as an retrofit product where cardboard insulation stops are not in place. The air chute is mounted to the underside of the roof deck from within the attic. It allows fresh air to carry in from the soffits and over the attic insulation.

air chute

IC Rated Pot Light

IC or “insulation contact” rated refers to the housing, or the fixture itself that is installed inside the ceiling and contains the lamp holder. IC housings must be installed wherever insulation will be in direct contact with the housing.  If installing spray foam insulation the foam must remain a minimum of 1.5″ away.  Our process is to cover the pot light with fiberglass batts and spray foam over top.

Non IC Rated Pot Light

Non-IC rated pot light housings are used in the same situations as the IC rated housings, only they require that there be no contact with insulation and at least 3 in (7.6 cm) spacing from insulation.

Weather Stripping

Weather stripping should be installed at the base of the Attic access hatch. It helps prevent air movement in an area that can be repeatedly opened and closed. If your attic hatch is not sealed with the aid of weather stripping it can lead to excess moist air escaping into the attic space.

Loose-fill Fiberglass Insulation

Formaldehyde free Fiberglass insulation that is mulched in a hopper and blown through a house into the attic.  It is a cost effective alternative to Batt insulation and is used in the wide majority of attic insulation projects in Alberta.  IDEAL proudly installs Climate Pro by Johns Manville in the majority of our installations.

Cellulose Insulation

Recycled paper coupled with a fire retardant installed in a very similar fashion as loose-fill fiberglass.  Has been on the market longer that loose-fill Fiberglass but due to the reduced material costs is no longer a benefit versus.

Climate Pro

Johns Manville blow-in, loose-fill fiber glass insulation is designed for open attics and hard-to-reach locations like corners, nooks and crannies. It is noncorrosive and noncombustible. Climate Pro® insulation is for professionals using large truck-mounted high volume production blowing wool machines.

Vapor Barrier

A plastic membrane that resists diffusion of moisture through wall, ceiling and floor assemblies of buildings.


Material forming a ceiling from the top of an exterior house wall to the outer edge of the roof, i.e., bridging the gap between a home’s siding and the roofline, otherwise known as the eaves. When so constructed, the soffit material is typically screwed or nailed to rafters known as lookout rafters or lookouts for short.

Soffit Ventilation

In sloped roof construction the Soffit area must be vented to allow fresh air intake from the Outside.  This air is drawn in through the soffits, circulated through the attic space and vented out through the output vents installed near the top of the roof line.  It is imperative that soffits vent properly or else they must be compensated for with Lower Roof Intake Vents.

Roof Output ventilation

Vents installed along the upper edge of the roof line designed to allow air to escape from within the attic space while preventing the elements from entering into the attic.  Examples include the traditional Turtle style vent, Whirly Birds, Phoenix vents (also known as Monster vents) and Ridge venting.

Poly & Tape Seal

Used to seal over penetrations and voids by tying new poly to existing vapor barrier and sealing with tape.

Hilti Foam seal

Cans of foam installed by hand to spot-install foam.  Used in small applications particularly electrical and plumbing penetrations.  Not used for large volume areas.

Roxul Batts

ROXUL’s line of fire-resistant insulation for residential use includes both thermal and soundproofing products:

ROXUL ComfortBatt®

thermal insulation for use in exterior walls, attics and crawlspaces. It provides indoor comfort and energy savings all year round.

ROXUL Safe’n’Sound™

soundproofing insulation for use in interior walls, ceilings and floors to help create a quieter home.

Poly Boot

A pre-formed plastic cover used to seal around a pot light and to the ceiling vapor barrier from within the attic.  It is installed in conjuncture with the pot light and ensures that warm, moist air cannot penetrate the attic through or around the pot light

Attic space

An attic is a space found directly below the pitched roof of a house or other building (also called garretloft or sky parlor). Attic is generally the North American English term for it.[1] As attics fill the space between the ceiling of the top floor of a building and the slanted roof, they are known for being awkwardly shaped spaces with exposed rafters and difficult-to-reach corners.

Soffit Vents

installing milled aluminum soffit vents

installing milled aluminum soffit vents

For most residential single family homes the Soffit area is the main source of intake ventilation for the roof / attic space. Older homes used plywood for soffit material that often had very few vent holes. To improve the intake ventilation in the attic we can cut new vent holes and cover them with milled aluminum soffit vents. This allows for more air intake and hence better air circulation in the attic.