Attic ventilation system, roof vent therefor, and method of installation and servicing thereof

A method for servicing a roof ventilation system operatively mounted on a roof, comprising:

• dismounting an outer housing of the roof ventilation system from a flange portion thereof without dismounting said flange portion from the roof, wherein said flange portion comprises a roof-mounted surface circumscribing an outwardly extending vent channel that remain mounted to the roof during servicing, and wherein said outer housing comprises an inwardly projecting structure that, when said outer housing is mounted to said flange portion, extends inwardly within said vent channel, and which houses a powered drive mechanism for driving an fan of the roof ventilation system;
• extracting said inwardly projecting structure from within said vent channel thereby allowing for servicing of the drive mechanism housed therein;
• reinserting said inwardly projecting structure within said vent channel upon remounting said outer housing post-servicing;
• wherein said fan is operatively mounted at an apex of said inwardly projecting structure, and wherein the method further comprises, prior to said extracting, dismounting said fan from said apex so to permit said extracting.

A roof vent to be mounted on a roof to draw exhaust airflow therethrough, comprising:

• a flanged roof-mountable vent channel;
• and
• an outer housing disposed relative to said vent channel to obstruct external ingress of precipitation therein, said outer housing comprising an inwardly projecting structure that extends inwardly within said vent channel so to permit said exhaust airflow to flow outwardly along an external surface of said inwardly projecting structure;
• and
• a fan operatively mounted toward an apex of said inwardly projecting structure to draw said exhaust airflow through said vent channel;
• wherein said external surface of said inwardly projecting structure comprises a concave surface shaped to laminarly redirect said exhaust airflow.

A roof vent to be mounted on a roof to draw exhaust airflow therethrough, comprising:

• a flanged roof-mountable vent channel;
• and
• an outer housing disposed relative to said vent channel to obstruct external ingress of precipitation therein, said outer housing comprising an inwardly projecting structure that extends inwardly within said vent channel so to permit said exhaust airflow to flow outwardly along an external surface of said inwardly projecting structure;
• and
• a fan operatively mounted toward an apex of said inwardly projecting structure to draw said exhaust airflow through said vent channel;
• wherein said outer housing further comprises a motor operatively mounted within said inwardly projecting structure to drive said fan through said apex.

A roof ventilation system to be mounted on a roof to draw exhaust airflow therethrough, comprising:

• a flange portion defining a roof-mountable surface circumscribing an outwardly extending vent channel;
• and
• an outer housing disposed atop said flange portion relative to said vent channel obstructing external ingress of precipitation therein, said outer housing comprising operatively externally mounted thereon a solar panel for capturing solar energy, and a fan operatively internally mounted therein powered by said solar energy to draw said exhaust airflow through said vent channel;
• wherein said outer housing is dismountably coupled to said flange portion for servicing without dismounting said flange portion from the roof;
• wherein said outer housing comprises an inwardly projecting structure that, when said outer housing is mounted to said flange portion, extends inwardly within said vent channel so to permit said exhaust airflow to flow outwardly through a vent channel volume defined between a vent channel wall and an external surface of said inwardly projecting structure;
• wherein said fan is operatively mounted toward an apex of said inwardly projecting structure to draw said exhaust airflow through said vent channel volume;
• and
• wherein said outer housing further comprises a motor operatively mounted within said inwardly projecting structure and powered by said solar energy to drive said fan through said apex.