WINDOW CAPPING

[ROGERG]

I would like to know if anyone knows of written standards for aluminum widow capping as I have a customer trying to impose SMACMA standards which is standards for ductwork and doesnt apply to window capping, they also are telling me that plywood we lined the existing wood frame is unstable which doesnt make any sense. Any insight from anyone. Thanks

[TnAndy]

Sounds like you've run up on that occassional customer that is an anally retentive engineer, or is just trying to get out of paying.

Learn to listen in the future to that little internal voice that says "This guy is gonna be a HUGE PITA to work with.......charge a LOT more or walk away".........you'll find that gut voice is rarely wrong.

[Tom R]

I would like to know if anyone knows of written standards for aluminum widow capping as I have a customer trying to impose SMACMA standards which is standards for ductwork and doesnt apply to window capping, they also are telling me that plywood we lined the existing wood frame is unstable which doesnt make any sense. Any insight from anyone. Thanks

Welcome to the forum, Roger, - -

TnAndy already answered your question, - - he's the 'window-guru' around here, - - so I won't step on his 'glass' toes!! :lol:

Last time me and him got into something about replacement 'window-caps', I 'secretly' agreed with him and tossed one almost the very next day, - - but of course, - - I'll never admit that to him. Hmm, - - hope he's not reading this. :lol:

But anyway, - - just to let you know, - - we have a 'roger g' on this site that's been here 'like-forever', - - so you comin' in might get a mite confusin'.

You, of course, are welcome to keep any 'handle' you want, - - just thought you might re-consider (not sure if you're aware of the roger g already on site).

Anyway, WELCOME either way, - - will look forward to hearing more from you soon.

[Sweep]

Your customer is referring to the SHEET METAL & A/C CONTRACTORS NATIONAL ASSOC (SMACNA) "Architectural Sheet Metal Manual", which is a construction industry standard containing recommended practices for proper design and installation of custom fabricated architectural sheet metal wherever it might be used in a building. It should not be confused with SMACNA's "HVAC Duct Construction Standards".

6th edition of the Architectural Sheet Metal Manual:
Table of Contents:
Chapter 1: Roof Drainage Systems
CHapter 2: Gravel Stop-Fascia
Chapter 3: Copings
Chapter 4: Flashing
Chapter 5: Building Expansion
Chapter 6: Metal Roof and Wall Systems
Chapter 7: Louvers and Screens
Chapter 8: Other Metal Structures
Chapter 9: Historic Restoration
Appendix A - Thickness & Weight of Sheet Metals
Appendix B - Metals Application and Specifications References
Appendix C - Galvanic Corrosion
Appendix D - Sheet Metal Roof Test Report
Appendix E - Custom Fabricated Metal Roofing Specifications
Appendix F - Moisture & Maintenance of Building Envelopes
Appendix G - Scupper Sizing
Appendix H - SMACNA Reprints 1929 Standard
Appendix I - Additional Informational Publications
Appendix J - Mechanical Fasteners
Appendix K - Former Committee Members and Other Contributers
Index

It can be purchased for $266 at:
http://www.constructionbook.com/xq/ASP/ProductID.361/id.341/qx/default2.htm
or directly from SMACNA for $262 ($184 if you are a sheet metal fabricator or A/C contractor) http://www.smacna.org/bookstore/index.cfm?fuseaction=search_results&product_id=164

The CD-ROM version contains a collection of SpinFire, 3-D drawings allowing you to magnify, rotate, section and view construction details from any angle.

This manual would only apply if the contract specified it as the design standard for the work you describe. If it did, you will need to find a copy since you would be obligated by contract to meet that standard.

I don't know what the issue is with the plywood at the frame unless it is the support for a sheet metal surround or "capping" that covers the frame-to-existing-wall connection where it might be suseptable to delamination.

[TnAndy]

so I won't step on his 'glass' toes!! :lol:

Last time me and him got into something about replacement 'window-caps', I 'secretly' agreed with him and tossed one almost the very next day, - - but of course, - - I'll never admit that to him. Hmm, - - hope he's not reading this. :lol:



I never come back and read these things.....BUT if I did, I'd have you know all my toes are fine Dresden porcelin......ahahahahahaaaaaaaa