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FAQ (Frequently Asked Questions)

westernchutes.com > FAQ (Frequently Asked Questions)

    Installation Requirements Per Chute

    IF 20” DIAMETER CHUTE:  Chute diameters 20” and under require a clear finished vertical shaft 4” larger than the chute, measured after finished drywall (Example: EACH 20” diameter chute requires 24” x 24” or 24 DIA clear finished opening with support points provided in the shaft for chute support frames).

    IF 24” DIAMETER CHUTE:  Chute diameters 24” and under require a clear finished vertical shaft 4” larger than the chute, measured after finished drywall (Example: EACH 24” diameter chute requires 28” x 28” or 28 DIA clear finished opening with support points provided in the shaft for chute support frames).

    IF 28” DIAMETER CHUTE:  Chute diameters 28” and under require a clear finished vertical shaft 6” larger than the chute, measured after finished drywall (Example: EACH 28” diameter chute requires 34” x 34” or 34 DIA clear finished opening with support points provided in the shaft for chute support frames).

    IF 30” DIAMETER CHUTE:  Chute diameters 30” and under require a clear finished vertical shaft 6” larger than the chute, measured after finished drywall (Example: EACH 30” diameter chute requires 36” x 36” or 36 DIA clear finished opening with support points provided in the shaft for chute support frames).

    IF 36” DIAMETER CHUTE:  Chute diameters 36” and under require a clear finished vertical shaft 6” larger than the chute, measured after finished drywall (Example: EACH 36” diameter chute requires 42” x 42” or 42 DIA clear finished opening with support points provided in the shaft for chute support frames).

    • The ROUGH opening is wider, but that depends on your wall type.  Your concrete contractor and framer must calculate the ROUGH opening by adding the wall thickness to the finished opening dimensions.
    • Floor support frames must rest on a level surface at the front and at back. Must rest on the floor inside the shaft. If sound isolators required they are not rated for installation inside a rated wall cavity.
    • The intake wall must be left out for the entire width of the clear finished opening mentioned above from floor to floor, centered on the chute. This applies to every floor even if there is no intake.
    • The face wall at intakes not to be built until after the chute is installed.
    • No pipe, conduit, or obstructions of any type are allowed in the chute shaft. (Prior to installation of a chute.)
    • All roof penetrations and finished flashing by others. Installation of flashing (when provided), counter flashing & curb flashing, and all weatherproofing to be by others.

    Our project process after order is received

    • APPROVED SUBMITTAL – Once the submittal is approved and returned
    • SITE MEASUREMENT – Once the chute shaft is roughly framed and openings are ready, PM will schedule an onsite field measurement.
    • DATA CONFIRMATION – Our Project Engineer (PE) will then confirm that all measurements and attributes, as defined by Submittal and Contract, are in place.
    • DISCREPANCIES -Any Discrepancies identified by the PE, (RFI’s, Change Orders) must be addressed.
    • FINAL DRAWINGS – Once all items are fully addressed, our PE will issue final drawings. These final drawings will be sent to you and your project team.
      • IF THERE ARE CHANGES from the approved submittals you are required to APPROVE these changes in writing prior to release into fabrication; or
      • IF THERE ARE NO CHANGES, no further approval is required and the drawings will be released into production and materials released.
    • POST DRAWINGS LEAD TIME: Fabrication and transit period is currently running approximately 9-10 weeks. The actual lead time for your project cannot be determined until final drawings are released.
    • INSTALLATION: Operations will contact your Superintendent to schedule install based upon material delivery.
      • Initial installation –  Typically 2-3 days
      • Final installation – Once the contractor has all required interior finishing work completed, we will return to do our final trim.