How to Fit Cladding to Roof Eaves

Written by richard may
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How to Fit Cladding to Roof Eaves
Soffits protect the eaves of your home and keep pests at bay. (roofing image by Greg Pickens from

Fitting cladding to your roof eaves can protect your roof from the weather and make it look neat and tidy. Soffits, as this type of cladding is known, also keep insects from building nests in the eaves. Today soffits are usually constructed from PVC, making them long-lasting, low-maintenance solutions.

Skill level:

Things you need

  • Ladder
  • Measure
  • Spirit level
  • Pencil
  • Snips
  • 1/2 inch galvanised nails
  • Hammer
  • Soffit cladding
  • "F" channel supports
  • "H" bar, 1 per roof corner

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  1. 1

    Measure the width of the overhang of each eave around the roof. Measure the length of each edge of the roof where you will be fixing the cladding and add the distances together. Multiply the two totals, taken in feet and inches, together to get the total area and divide by 100. Cladding is sold in squares; dividing by 100 will determine the number of squares you require. Use the total length measurement of the roof edge and multiply by two to calculate how much "F" channel you require. The "F" channel supports the soffit panels beneath the eaves.

  2. 2

    Fix the "F" channel to the wall beneath the eaves using galvanised nails. Do not hammer the nails completely in as you need to allow the channels room to expand in hot weather. Fix the "F" channel on the overhanging eave level with the first "F" channel, use a spirit level to ensure they are in line with each other.

  3. 3

    Cut the soffit panels, using sharp snips, to the width of the eaves less 1/4 inch to allow for heat expansion. The lengths of soffit panels are cut in width sections and not fitted directly to the supports in one piece.

  4. 4

    Slide the cut edge of the soffit into the "F" channel fixed to the building wall. Nail into the nail plate using galvanised 1/2-inch nails, and fit the opposite end into the receiving "F" channel, making sure there is room for expansion between the edge of the soffit and the roof eaves.

  5. 5

    Slide the next piece of soffit into the "F" channel, interlocking it with the previous panel. Most soffit is cut in a profile that allows it to be locked together in this way. Nail this panel into the nail plate using 1/2-inch nails. Continue fitting the soffit panels along the eaves until you reach a corner.

  6. 6

    Measure along the edge of the eaves from the corner back to the last soffit panel. Mark this measurement on the next panel to be installed. Make a 45-degree line across the panel using a protractor and cut along the angle. Install this mitred soffit into the "F" channels, then insert the cut edge into an "H" bar.

  7. 7

    Cut the joining corner panel by cutting a 45-degree angle from the outer edge corner. Insert the cut edge into the "H" bar and nail to the nail plate of the "F" panel as normal. Continue to fix the remaining soffit in the same way.

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