Edging over shingle

[rfarnum]

I found an interesting edge I haven't seen before. It was on an old (1880's) house and this edge was on the small peaks on the porch facing the street.

The edging came from underneath and wrapped around above the top of the shingle, about 1/2 inch. it was tight on the shingle, but didn't look like it was pounded down. In fact it was installed very neatly and looked nice.

Is it just a decorative edge, so that you don't see the edge of the shingle from the sidewalk and street?

The area is not a high wind area. I pointed it out, and told the client I would try to find out more information.

Please let me know if you are familiar with a product like this. Thanks.

[jschulte]

Sorry, picture is too small for me....

[rfarnum]

I'll see if I can upload the larger pic,
Randy

[Russell L. Britton]

HI to All,
If that is a drip cap that I am looking at, it does not seem to be doing a lot of good on top of the shingles. It should be on top of the felt paper but not on
top of the shingles. Just my take on it.

Russell
BHI

[Barry Adair]

Randy,

Russel is right. If they trimmed the shingles flush with the facia trims, nailed the drip through the top of the shingles, or though the fascia that is wrong. It appears they did not trim the shingles and that is causing the rake edge shingles to crown, overhang material forced flush, as seen on the 3rd and 5th course from the ridge.

Down hear we call it a "blivet" trying to cram 10 pounds of shet into a 2 pound sack.

Drip edges are corner-shaped metal strips that nail along the edges of the roof. They allow water from the roof to run cleanly off the edge. Without a drip edge, water may run down the side of the fascia and siding -- causing stains and eventual damage. The drip edge also supports the part of the shingle that extends past the decking.

Along the eave, nail the drip edge under the builder's felt and over the fascia. As an extra precaution, you may want to cover the nailheads with roofing cement then stick the felt down.

At the rake (overhang), install the drip edge over the felt and fascia. This protects the felt from high winds and blowing rain.

NOTE: The length of eaves and rakes may require using more than one piece of drip edge. Like shingles, lap upper pieces over lower pieces.

drip_edge.jpg (27.7 KB)

[rfarnum]

Thanks Barry and Russell,
The reason I asked was because it was so neatly done, it looked like the piece was meant to be there, not like a drip edge somebody installed wrong.

I'll call it out to my client that it could lead to problems of water penetration.

Thanks again,
Randy

[Bruce M. Graham, III]

odd looking shingle pattern, do you have a full view shot?

[Peter Doane]

Improperly installed rake flashing,... I usually see it installed this way on ocean front homes where they try to prevent wind damage to the shingles at the rake edge. I point it out as being wrong but also let them know WHY they may have installed it this way.

And yeah,.. what Bruce said,.. the singles look odd,.....

[David P. Valley]

What's up with the shingle installation? Why are they installed vertically at the left side of the picture?

[Larry D. Kage]

Originally Posted by dvalley

What's up with the shingle installation? Why are they installed vertically at the left side of the picture?

Looks like an attempt at a woven valley installation...if there's a valley just out of the pic there.

[David P. Valley]

As stated, the drip edge must be tucked under the shingles.

"Click to Enlarge"
Attachment 8495

[David P. Valley]

Originally Posted by lkage

Looks like an attempt at a woven valley installation...if there's a valley just out of the pic there.

A valley that close to the outer edge of the roof???

How about a full view of roof?

[dfogleman]

Randolf, I cannot make out any great detail on the edge from the photo however I can tell you that I ran into what you are describing only once in the past 15 years. Unfortunately on the home I found it on the time and trouble spent on the rake trim should have been invested in the roof install, the place leaked like a sieve. I did spec removal of this edge detail for the home I found it on due to the potential of the water finding it way back under the shingles at the rake edge. This is something that may seem to be unlikely but I assure you I have made many repairs to rotted sheeting and face boards for just this reason, usually to was a situation where no underlayment was applied or the drip edge was installed under the underlayment.

I would like to note 2 other items,
1) as stated by Barry, the shingles are buckling because there is no room for expansion inside that groovy edge detail.
2) a more critical item that I see too often, at the left side of the picture I believe I notice a woven valley!?...if I am correct might I state that it is not a proper installation practice to use a full weave valley with a laminate shingle...reason is that there is a tendency for cracking at the common bond area also I think that visually it does not look as nice. The proper valley detail for laminates is open metal, closed cut or the california.

Hopefully this is helpful.

[Larry D. Kage]

Originally Posted by dvalley

A valley that close to the outer edge of the roof???

I was thinking it looked like an small entry porch gable considering the front of the house in the picture beyond.

[Jason A. Sieg, CMI]

The shingles don't have the proper overlap either... If they did you should not see strips of black granules on a brown/tan shingled roof.