Differences between revisions 5 and 17 (spanning 12 versions)
⇤ ← Revision 5 as of 2022-08-30 19:34:31 →
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Editor: KeithLofstrom
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  . probably no: Durovent 22x48-in Raft(?) Vent - foamed polystyrene.
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  . maybe 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?   . Durovent 22x48-in Raft(?) Vent - foamed polystyrene. ''(probably no)''
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  . Perhaps Good: 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.   . 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.

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)