Installing Soffit & Fascia with Vinyl Siding

Written by robert howard
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Installing Soffit & Fascia with Vinyl Siding
Vinyl siding looks much like wood. (house siding 3 image by Psycience from

Vinyl siding works as an interlocking system of channels and panels. First, the channels are installed on the house, then fitted into the channels. The vinyl soffit and fascia pieces are typically installed right from the start, before the other siding panels and channels are fitted to the house. Specialised J-channel pieces are installed along the soffits, then the soffit panels are cut and fitted into the channel pieces. The fascia wood is covered by a sleeve-like piece of vinyl slid in place and fastened.

Skill level:

Things you need

  • Tape measure
  • Galvanised 4d nails
  • Hammer
  • Tin snips
  • Utility knife

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  1. 1

    Run polyvinyl chloride (PVC) J-channel pieces along the outside and inside edges of the soffits. Fasten the J-channel so that the open sides of the channel point toward one another; the soffit panels will fit into these pieces. Cut the J-channel to size with tin snips or a jigsaw, and fasten the pieces in place with a hammer and galvanised 4d nails driven through the existing nail slots in the channel pieces.

  2. 2

    Measure and cut the vinyl soffit pieces, using a tape measure and tin snips. Measure from the back of one J-channel piece to the back of the other, then make your soffit piece about 1/4 inch shorter than this span. Fit the cut soffit pieces into the J-channels. Either bend the soffit pieces, or pry the lip of the J-channel slightly to accommodate the soffit pieces.

  3. 3

    Remove the gutters from the house so you have easy access to the fascia. Slide the folded vinyl fascia material over the wooden fascia and into place underneath the gutter's apron. The fascia piece will snap over the wooden fascia. Once you've got the fascia piece positioned, fasten it into place with galvanised nails driven every few feet. Drive these nails into the top edge of the vinyl fascia.

  4. 4

    Reattach your gutters to the house.

Tips and warnings

  • Don't drive your nails too tightly when working with vinyl siding. Whether you're working with the PVC channel pieces or the siding panels themselves, always leave 1/16 to 1/32 inch of the nail shafts exposed to allow for the natural expansion of vinyl in high heat.

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