How to Install Fascia at the Peak

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How to Install Fascia at the Peak

How to install fascia at the peak without hiring a professional? If you’re like most homeowners, you wouldn’t always hire a professional every time you want a small project in your home completed.

Sometimes, you will want to assess and advance your DIY skills. Installing fascias at the peak of the roof sounds complicated, but it is not. It is a small and fun exercise for some. Fascia boards come from a variety of different materials, and so, it’s only wise you know which one will work best for you.

How to Install Fascia at the Peak - Should I Do It Myself?

To put things clear to those who may not know what fascia boards are, they’re the straight boards extending lengthwise to the roof's lower edge. They sit at the lower ends of roof trusses. The work of fascia boards is to support guttering and tiles.

The conventional way of installing fascia boards takes less time and is less hectic. As with the one involving installing the fascias at the peak, it may prove a bit complicated. So should I do it myself?

Of course. If you can follow instructions as outlined, there will be nothing complicated. Below, we’ve got the details of what is involved in the installation of fascias and the core tips to be observed to make the process less hectic.

Essential Materials and Tools

  1.  Metal shears
  2.  Screw guns especially one with a Phillips head bit
  3.  Chalk line
  4.   Pan Head Phillips screws
  5. Tape measure
  6. Carpenter’s level

How to Install Fascia at The Peak—The Guide

Learn the core steps to mounting a fascia at the rooftop, without injuring yourself or damaging the fascia board.

  1. Take measurements of the fascia board width. Deduct a half-inch from the width size.
  2. Make a trim on both sides with an aluminum fascia strip. Ensure the trim reaches the furthest end of the board. Then, make a chalk line in between the marks you made.
  3. Use metal shears to cut the aluminum fascia lengthwise across the Chalkline. The standard width and length sizes of aluminum fascias are 6->8 inches and 10->12 inches consecutively. The l-shaped edge created after cutting the aluminum fascia should be left untouched.
  4. Position the aluminum trim you made lengthwise towards the fascia board and on top of the gable. Using a pencil, make a mark on the trim adjacent to the fascia board’s bottom edge.
  5. Cut the bottom along the angle made by the aluminum fascia trim. Fold it so that it closes the longer trim edge under the metal flashing and covers the gable fascia board’s top part. Now, place the aluminum trim’s bottom edge in line with the fascia board’s bottom edge.
  6. Get your pan-head Phillips screws and insert them in the aluminum trim’s bottom edge. Insert the screws at an interval of 24 inches, but don’t interfere with the L-shape.
  7. The next step is to install the aluminum fascia trim but with an overlap of 2 inches from the first piece. It would help if you slipped this aluminum fascia trim such that it sits underneath the metal flashing. Now, mount it firmly using the screws you used above and following the same formula.
  8. Take measurements of the distance between the fascia trim you installed above and the top of the gamble. Add about 2 inches to the size you got above. That’s to say that if the distance between the two sections was 24 inches, you should add another 2 inches to make it 28. Add a mark 28 inches from the trim’s end.
  9. Before you cut the trim, make another trim but within a shorter distance than the first one. The mark should be two inches less than the first trim. So, in our case, you have to make it at 26 inches.
  10. Place the aluminum trim in between the carpenter’s level and fascia board, and draw two vertical lines using a pencil. The first mark should be at 28 inches, while the next one should be 26 inches.  It would be best if you held the trim tightly to the fascia when making the marks to get accurate angles.
  11. Cut the fascia trim’s tip such that the 28 inches mark fits lengthwise on the side of the gable, and the 26 inches mark fits at the top area of the gable. The fitting may not be perfect because the width of the bottom edge will be lower. However, it must slip over the gable line at the center.
  12. Install the top piece of the fascia board. Follow the same measurements and formula you used on the other two trims.
  13. Following the trim installation method above, create several other trims on the opposite side of the gable. Do this until you are done with the last piece of the fascia board.  However, the measurements here should be done starting from the gable top to the piece, lastly installed. Don’t forget to add the two inches as you did in other steps above.
  14. Our next step will be to hold the trim you made alongside the fascia board. Using a carpenter’s level, make a vertical mark at the peak edge.
  15. Using the metal shears, cut the trim vertically before you mount the last piece. Once you’re done, check to be sure the vertical line at the gable’s peak section sits at the center of the gable. On the opposite side, it should overlap the piece you installed at the top of the trim.


These are the simple and straightforward steps on how to install fascia at the peak. Follow each of these steps to the end to get a clear picture of what should be done and how it should be done during the fascia installation process. 

If any of the steps seem confusing and hard to comprehend, you should consult with an expert. Don’t move to the next step before you’ve clarified and understood everything.

If the process appears complex, consider getting a professional roofer. They will save you time and money alongside saving you the headaches.