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  . Durovent 22x48-in Raft(?) Vent - foamed polystyrene. ''(probably no)''   . '''Durovent 22x48-in Raft(?) Vent''' - foamed polystyrene. ''(probably no)''
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  . ADO Products Rafter Vent with Baffle 24?x46-in. White emits/absorbs less infrared, better insulation. Baffle protects soffit vents.   . '''ADO Products Rafter Vent with Baffle 24?x46-in'''. White emits/absorbs less infrared, better insulation. Baffle protects soffit vents.
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  . proVent 22x48-in Rafter Vent. Black, may be more durable plastic, emits more infrared. Won't bend, won't keep old insulation out of soffit vents. ''(maybe yes)''   . '''proVent 22x48-in Rafter Vent'''. Black, may be more durable plastic, emits more infrared. Won't bend, won't keep old insulation out of soffit vents. ''(maybe yes)''

Roof Ventilation 4180 sw 99th

Questions

(1) Which rafter vents should I use? Lowes Hillsboro (2022 August 30) has many in stock, and their customer reviews are good. Home Depot is ship-to-store only, can't shop and examine materials. From Lowe's web page:

  • Durovent 22x48-in Raft(?) Vent - foamed polystyrene. (probably no)

  • ADO Products Rafter Vent with Baffle 24?x46-in. White emits/absorbs less infrared, better insulation. Baffle protects soffit vents.

    • polystyrene - one reviewer calls them "egg crate material", too fragile? (maybe no)

  • I would prefer a vent shaped and colored like this but a more durable plastic.
  • proVent 22x48-in Rafter Vent. Black, may be more durable plastic, emits more infrared. Won't bend, won't keep old insulation out of soffit vents. (maybe yes)

  • Are there commercial suppliers near Portland with more choices and better materials for rafter vents?

(2) Do bugs/bees/wasps build nests in the airspaces? I can inspect the spaces with my borescope.

  • Cleanout: If the plastic vents are stapled, removal will damage them. If lath-screws, I can remove and replace.
  • I have adhesive plastic patches that I can put over the spots where I staple or screw. That will reduce strain and tears.

RoofVent (last edited 2022-08-30 21:58:53 by KeithLofstrom)