Radial line development - Rain Cap, fabrication

#ventilation #sheetmetal #hvac #ductwork #radial line development

[@OWN1003]

This is very similar to the housing of a weather warning siren. I am in the process of attempting to re-create the housing to a Federal Signal Model 2 siren. I think it would be really cool to see you try and come up with that type of design tutorial.

[@sheetmetalwork]

I’ll make a note and look into it. Thanks.

[@koolcruiserful]

I'm so glad I found your channel awesome videos!

[@sheetmetalwork]

@@koolcruiserful you just made my day :)

[@dr8627]

Where do you find your information on details? Specifically when you say “it should be twice the diameter of the stack”. I’m genuinely interested in learning and hope to not sound rude at all. Do you use smacna? I love to know resources to learn from and own very many old sheet metal books

[@sheetmetalwork]

I’ve seen this in a few textbooks that have been around for many years. We also follow SMACNA guidelines and perhaps they do provide a chart? But we follow the chart from a Richard Budzik book, PRACTICAL SHEET METAL LAYOUT, Round Fittings used today, on page 213. Having said all that, you may find other resources that mention a slightly different slope angle and free Area.

[@dr8627]

@@sheetmetalwork awesome thanks

[@simplytrolling6869]

Though this is a bit too complicated for me, hats off to you! You are awesome sir!

[@sheetmetalwork]

Everyone starts as a beginner and then with effort and time, it somehow gets easier 😀

[@assabetmetalfabrication6143]

Excellent step by step with variations outstanding mate Do you have a web site or email to contact you

[@sheetmetalwork]

I dont have a website but my email is [e-mail]

[@bohanerosario9628]

From Dominican Republic..God bless you.

[@goata007]

Can you please do a video on storm/high-wind cap (aka cowl)?

[@latenitefab]

Nice detailed video to follow. I made this same layout to do a rain cap for a 18" and 24" heater stacks at work

[@sheetmetalwork]

For me, they are just one of those fittings that are fun to make and watch unfold,,,,,and something to look at for many years to come. 👍

[@jimbob33ism]

Weather cowl !!

[@sheetmetalwork]

I do believe I heard cowl said before, Thanks! There’s also a couple more names for this cap that I can think of.

[@Jay91kay]

Spark arrestor also

[@jaicabryizky6987]

China cap

[@shed.projects5150]

I managed 10 mins

[@xslabcabxhearsex]

Great video.i have been doing sheet metal for 31 years and I put beads in my caps also.looks more professional

[@sheetmetalwork]

Thanks Chris 👍

[@JJmetaphysics]

Thanks man I have a conical exam tomorrow I needed this lol

[@sheetmetalwork]

Good luck.

[@JJmetaphysics]

lol I tried your method but I was off by an inch. I don’t know what I did wrong 😢