Have questions? Ask the experts.

Ask-The-Experts forum

Below is a forum for exchanging information concerning residential metal roofing, including general material and metal roofing installation questions. Should you have questions or concerns that deal with specific branded metal roof products please contact the manufacturer directly.


Log In

Ask-The-Experts >

Large gap under ridge cap
I have installed Galvalume metal roof and apparently the ridge opening is too wide with a very heavy, windy rain. I only have about 1 1/2" inches of roofing under the edge of ridge cap. I don't recall what size ridge cap I used.

Are larger ridge caps available? If not, I was planning on putting an "L" shaped piece of metal under the roofing, with an edge sticking up towards the crest of the ridge cap, to keep rain from blowing into the ridge opening.

Any suggestions

Buster Baker
Most ridge caps are designed for use with a closure of some sort. A metal "L" is one type of closure. There are also foam closures available, as well as profiled closures which allow for venting too.

I strongly suggest going back to your metal roofing manufacturer for their recommendation.

I do not think that a larger ridge cap (at least not by itself) is the answer to your problems.
Thanks for the reply. I did talk to my vendor and he said he did have larger ridge caps. But I also don't think that would be the answer after thinking about it. The vendor told me about the foam strips I could put under the cap. I was not aware of that. Nor was the person I had put the roof on (not a professional roofer obviously).

I am going with the larger ridge caps because I think it would look better because what I have now does not lie well on the ridge. I am also going to try the foam strips and I think that will do it.

Thanks again.


This topic has been closed or locked. You can no longer post a reply.

If you have a metal roofing question, please post it above and a member of our panel of contributors will provide a response. Answers provided by contributors are based on the limited information posted and, therefore, may not provide a complete or accurate answer under all of the relevant facts and circumstances. No advice or information obtained through the forum or this website shall create any warranty by MRA or its contributors whatsoever and all warranties are disclaimed. MRA and its contributors disclaim any liability of any kind arising out of or relating to use of the answers or information provided hereunder, and by using the forum, you agree to waive any claims against MRA and its contributors and hold them harmless from any liability or damages of any kind arising out of or relating to the forum. For a detailed description of the terms and conditions of use of the Forum and this website, including a more detailed description of disclaimers of warranties and limitations of liability, please see the Terms and Conditions section of this website. MRA does not endorse or recommend any commercial products, processes, or services. The views and opinions of contributors to this Forum do not necessarily state or reflect those of MRA or its members, and they may not be used for advertising or product endorsement purposes.

  • Read industry related articles about metal roofing.
  • View all the types and styles of metal roofing
  • Locate a metal roofing contractor near your home
Find a contractor near your home