Valley flashing, too much?

Can anyone think of something writable for this? It may work just fine but it doesn’t look right.

flashing.jpg

Is that flashing rusting?

R905.2.8.2 Valleys. Valley linings shall be installed in accordance
with the manufacturer’s installation instructions before
applying shingles.Valley linings of the following types shall be
permitted:

  1. For open valleys (valley lining exposed) lined with
    metal, the valley lining shall be at least 24 inches (610
    mm) wide and of any of the corrosion-resistant metals in
    Table R905.2.8.2.

  2. For open valleys, valley lining of two plies of mineral
    surfaced roll roofing, complying with ASTM D 3909 or
    ASTM D 6380 Class M, shall be permitted. The bottom
    layer shall be 18 inches (457 mm) and the top layer a
    minimum of 36 inches (914 mm) wide.

  3. For closed valleys (valley covered with shingles), valley
    lining of one ply of smooth roll roofing complying with
    ASTM D 6380 and at least 36 inches wide (914 mm) or
    valley lining as described in Item 1 or 2 above shall be
    permitted. Self-adhering polymer modified bitumen
    underlayment complying with ASTM D 1970 shall be
    permitted in lieu of the lining material.

Permitted metals from Table R905.2.8.2

  1. Cold-rolled copper
  2. Lead-coated copper
  3. High-yield copper
  4. Lead-coated high-yield copper
  5. Aluminum
  6. Stainless steel
  7. Galvanized steel
  8. Zinc alloy
  9. Lead
  10. Painted terne

I don’t have any problems with the amount of flashing and where it’s located and would advise against getting into a pizzing contest with a licensed roofer or builder based on your opinions unless you are also licensed and competent in the area of roofing. My only problem is with the corrosion.

Yes it is rusting pretty bad. Matter of fact all of the flashings were. I did note that for repair/replacement.

Then that all you need to write up…design can be a separate issue…kind of like flat roofs…its not IF they will fail but WHEN they will fail…we don’t speculate as to the when but report what IS going on at time of inspection.

regards

Jeff

“Poor roof design may lead to premature failure of the roofing system”

On the left side it appears the one piece of flashing is on top of the shingles and then slightly below that it appears the flashing stops short so water could get under that piece.

“Rust was noted on the open valley flashing. All exposed flashings should be painted to prevent from deterioration.”

R905.2.8.2 Valleys.
Non destructive. Unless you have home owners permission to do a technical.
R905.2.8.2 manufacturer’s installation instructions before
applying shingles

  1. For open valleys (valley lining exposed) lined with
    metal, the valley lining shall be at least 24 inches (610
    mm) wide and of any of the corrosion-resistant metals in
    Table R905.2.8.2.
    We can’t see under the valley or the main shingles.
    The starter shingle is your observation.
    **corrosion-resistant metals
    Galvanized has a coating. I have seen this rust before. Depends on the gauge it might be superficial.Rust proofing.
    Call it out anyway.
    Recommend a licensed roofer.

I see one problem. Top valley.
Shingle in the metal valley.
It should be clear.

**

This is the correct response.
Considering the roof design, that system is as good as it’s going to get. The shingle running under that L. valley piece isn’t an issue. It may have been the only way to get a conforming closure there. It’ll be OK.

Considering the roof design, that system is a sgood as it’s going to get. The shingle running under that L. valley piece isn’t an issue. It may have been the only way to get a conforming closure there. It’ll be OK.
I disagree.
It is a good system.
Do not get me wrong.
All the signs are there that experienced roofers performed due diligence to there trade.
The materials provided by the company are what they have to work with.
The manufactures are responsible for there materials.

I agree and understand. You said it better than I was going to bother with. (I leave a lot unsaid.) You are correct.