Thread: Look at this please - need help

I did an inspection on a house that has a steel roof. One side of the house is a shed design and seems to be missing a top capping? Can anyone give me information or links on how to properly cap this?

Google
ridge caps metal roof

You will get pics and links.

Originally Posted by Raymond Wand

Google
ridge caps metal roof

You will get pics and links.

Thanks Raymond for the info. I can't find anything that is specific to this application?
Do you know a link?
Any opinion on how I would report this?
Thanks.
Phil

Originally Posted by Phil Cybolsky

Thanks Raymond for the info. I can't find anything that is specific to this application?
Do you know a link?

http://www.usametalroof.com/#!shed-ridge-cap/c19cu

Any opinion on how I would report this?

"Metal shed roof ridge cap flashing missing." I could get more specific (some might call it "alarmist", but "accurate and truthful" would be the correct and proper viewpoint) ...

Ridge cap not installed on shed metal roof. As a result this leaves the roof framing susceptible to water entry this can lead to wood rot, mold and damage to contents. Repair ASAP. (KISS)

Originally Posted by Jerry Peck

http://www.usametalroof.com/#!shed-ridge-cap/c19cu



"Metal shed roof ridge cap flashing missing." I could get more specific (some might call it "alarmist", but "accurate and truthful" would be the correct and proper viewpoint) ...

Perfect! Thanks a ton fellas.

Just to add a fly to the ointment..

Screw pattern/placement. Not knowing manufacture, but here is one US source (Fabral) to look at.(towards bottom of page 2)

http://www.fabral.com/wp-content/upl...%2011-2013.pdf

Originally Posted by Garry Sorrells

Just to add a fly to the ointment..

Screw pattern/placement. Not knowing manufacture, ...

"Not knowing the manufacture" is key - without knowing the manufacturer ... I would not comment on screw pattern or placement (other than to say that the screw pattern or placement requirements are not known and vary from manufacturer to manufacturer).

Some require the fasteners through the ribs, some through the pans (in the center of the pan, near the edge of the pan, location varies), and some through the pans and ribs, some through the pans and the overlapped ribs, I may have missed some patterns and locations.

Jerry,
Exactly why I had a "caveat" to my comment. Though I know of no US manufacture that specifies screws in that location on that pattern of pan metal roofing.

I know exactly what the thinking/theory behind screwing to the ridge of pan, but that is not the discussion.

Just threw it out as a comment/observation of the picture for others to think about.

How cover your self in saying that it may be incorrect and is manufacture dependent, is a different discussion than the OP original question/inquiry.

Garry,

There are brands in the US which have fasteners through the ribs - I have seen the product approvals and installation instructions while doing code inspections.

I also wasn't covering myself - I was letting the OP know of the different attachment patterns I've seen.

It would be a disservice to the client to say that pattern is "wrong" when the manufacturer is unknown and the "right" pattern is not known.

That needs a ridge cap regardless.

Originally Posted by Jerry Peck

Garry,

There are brands in the US which have fasteners through the ribs - I have seen the product approvals and installation instructions while doing code inspections. .......

I think we have been down this path before. Yet, I still would like to see confirmation of any manufacture that has specifications for installation of this type of pan material with field screwed in pan ridge as is seen in the OP picture. Any year or location would wide.

Proof is in the eating of the pudding. What we think we remember as fact may be distorted over time and distance. Which is why the request for documentation to inform the forum members of past practices on installation methods.

In the forum there is a consistent cry for the manufacture documentation that support various materials and installation methods which are found in the field. Some are different than what are typically known or accepted practices of installations. Others have changed over time. So bring forth your research skills and show the documentation.


P.S. - Yep, OP pict needs ridge cap.

I just had a 40x60 drive shed built and roof panels are secured through ridge on panels.

If I inspected roof in picture I would not be calling out fastening.

Raymond,
Do you have the manufacture install specifications?
If not, can you get them either from installer or from material manufacture?? Or find out the material manufacture and I will give it a shot.

The panels you have are different from those in OP. Though I am pretty sure that your screw location is not specified on ridge.

Oh, Lets be specific. There is a difference between using NAIL and SCREW placement. If NAILED it can be on ridge.

I will check to see who is manufacturer.

I don't agree with your assumption its wrong whether nailed or screwed. Til such time as I find out who is the manufacturer stand easy.

Garry,

Okay, checked with the contractor who are Mennonites who build many of these drive sheds and barns, and they anchor all their metal roofs in the rib and not the pan. They feel this method of attachments works better in colder climates and less chance of leaks, then securement through the pan.

The contractor purchases the panels from Ideal Roofing.

Originally Posted by Raymond Wand

The contractor purchases the panels from Ideal Roofing.

Looks kind of like their Ameri-Cana panel which shows screws down through the each of the large ribs in the installation instructions for Canada and the US.

http://www.idealroofing.ca/english_c...structions.pdf

http://www.idealroofing.ca/english_u...structions.pdf

Originally Posted by Jerry Peck

Looks kind of like their Ameri-Cana panel which shows screws down through the each of the large ribs in the installation instructions for Canada and the US.

http://www.idealroofing.ca/english_c...structions.pdf

http://www.idealroofing.ca/english_u...structions.pdf

Just poped in but can't stay, but take a look at this:

http://www.idealroofing.ca/english_c.../AMC_UL580.pdf

Originally Posted by Garry Sorrells

Just poped in but can't stay, but take a look at this:

http://www.idealroofing.ca/english_c.../AMC_UL580.pdf

You should have hung around a bit longer ... ... that only applies to meeting that wind uplift standard.

Raymond could sent the photo of his roof installation to Ideal Roofing and ask: "Is this an approved installation by your standards?" That would provide the answer from the manufacturer.

Wish I could have stayed a bit.
The Ideal Roofing site has what I was looking for:

"For roofing application(and especially in northern climates), Ideal Roofing recommends use of 2” screws, through each high rib of the panels. Make sure that the side laps of the panel are installed as shown in the figure; the short side over the long side."

http://www.idealroofing.ca/english_u...stallation.pdf

So it seems that there are specifications from at least one manufacture for screwing on top of rib on one particular design.

Raymond,
I knew why they did what they did it, which was not the point of the exercise. Leakage potential is reduced but the chance of compressing the ridge and flexing the pan increases using screws. It does seem that they (Ideal Roofing) are a bit different than the lower 48 in their written specifications. Maybe it is the snow to the north and wind to the south that makes the difference. As I have said I had not found any manufacture in the U.S. that supports universal ridge screwing. for what ever the reason. Not that I am against the attachment method , just that I could not find any documentation. It is not an across the board universal acceptance for all manufactures and their styles produced to screw at the ridge. It is selective.

As far as how to report the installation that may be another issue. It works depending on what the priorities are may be part of the inspection observation/opinion narrative about the roof installation. Totally blowing it off with no comment and it may come back to haunt you at some point , which is the reason I pursued the discussion.

You can argue; prove that it is wrong. Or argue; prove that it is correct. Take you choice.

Originally Posted by Garry Sorrells

You can argue; prove that it is wrong. Or argue; prove that it is correct. Take you choice.

Or one can write it up the smart way and put down that the installation needs to be documented.

You would not be saying that it is correct or that it is wrong.

The last couple of homes and riding arenas that I have inspected all have had installation of screws on ridges.

Have since seen several other roofs fastened the same way, that is attachment through ridge. But of course I don't know who the manufacturer is. One concern is that the shank of the screw can snap with expansion and contraction of the roof panels if attached through the rib.

The photo I supplied is how my new drive shed roof has been built, my barn roof is attached through the ribs, and the other barn roof too.

It is really common up here to see ridge attachment. Just inspected last week a log house which had a metal roof, and again the attachment was through the roof.

Thanks for the feedback Jerry and Garry.

Needs "Peak Flashing"....

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Needs "Peak Flashing"....