Sheet Metal: Difference between revisions
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*Most common sheet metal is 29 ga, with a little less in 26 ga (barn roof, siding, etc). Galvalume appears to be galvanized with ZA alloy (55% Al, 45% Zn). [https://www.burrows-supply.com/blog/metal-and-paint-used-for-pole-barns-and-their-warranties/#:~:text=Metal%20thickness%20for%20pole%20barns&text=The%20minimum%20standard%20of%20thickness,0187%E2%80%9D.] | *Most common sheet metal is 29 ga, with a little less in 26 ga (barn roof, siding, etc). Galvalume appears to be galvanized with ZA alloy (55% Al, 45% Zn). [https://www.burrows-supply.com/blog/metal-and-paint-used-for-pole-barns-and-their-warranties/#:~:text=Metal%20thickness%20for%20pole%20barns&text=The%20minimum%20standard%20of%20thickness,0187%E2%80%9D.] | ||
*Galvalume - last 2x that of galvanized only? [https://www.metalsales.us.com/whats-the-difference-between-galvanized-steel-and-galvalume/#:~:text=Galvanized%20steel%20consists%20of%20zinc,twice%20that%20of%20galvanized%20steel.]. Galvalume regularly lasts 60+ years. [https://mavericksteelbuildings.com/painted-roof-vs-galvalume-roof-advantage/]. BS alert apparently, as galvalume was introduced only 50 years ago. | *Galvalume - last 2x that of galvanized only? [https://www.metalsales.us.com/whats-the-difference-between-galvanized-steel-and-galvalume/#:~:text=Galvanized%20steel%20consists%20of%20zinc,twice%20that%20of%20galvanized%20steel.]. Galvalume regularly lasts 60+ years. [https://mavericksteelbuildings.com/painted-roof-vs-galvalume-roof-advantage/]. BS alert apparently, as galvalume was introduced only 50 years ago. | ||
*Pro-rib standard at Menards is 29 ga [https://www.menards.com/main/building-materials/pole-barn-post-frame-materials/steel-panels/cut-to-length-pro-rib-reg-steel-panel/emeraldgreen1558289-42/p-1444448586926-c-5717.htm?tid=-8075919846634741241&ipos=1] | |||
*Typical metal brake does 29 ga [https://docs.google.com/presentation/d/190GoVHzn9EBOiRwn0Oj8toZDyr8bd9sYemN50wrJrfg/edit#slide=id.g18949d995a4_0_0] | |||
*Van mark $2k - 26 ga [https://www.lewiscontractorsales.com/van-mark-sheet-metal-brake-10-6-mark-ii-contractor.html?gclid=CjwKCAiA3KefBhByEiwAi2LDHKK-BBC-QZJ-dAYbOlhRVWLuztkMXhUP-m8-hTLE9rcilWMiE2xJBhoCt6sQAvD_BwE] | |||
=18 gauge= | |||
*It is 1 mm [[https://www.steeldash.com/products/b-deck-galvanized-18-gauge-interlock-roof-smooth]] and 2 lb/sf [https://www.metalworldinc.com/stainless%20steel%20sheet.htm]. Thus a 8x4 foot sheet is 64 lb. Lighter than [[OSB]] at 75 lb for 3/4". | |||
**Design formulas [https://cdn.shopify.com/s/files/1/0572/7328/6853/files/B-Deck_Load_Table.pdf?v=1713307270] | |||
=Links= | |||
*[[Fasteners]] | |||
*[[Metal Coil]] | |||
*[[Steel Building Designer]] | |||
Latest revision as of 23:14, 2 August 2024
- Most common sheet metal is 29 ga, with a little less in 26 ga (barn roof, siding, etc). Galvalume appears to be galvanized with ZA alloy (55% Al, 45% Zn). [1]
- Galvalume - last 2x that of galvanized only? [2]. Galvalume regularly lasts 60+ years. [3]. BS alert apparently, as galvalume was introduced only 50 years ago.
- Pro-rib standard at Menards is 29 ga [4]
- Typical metal brake does 29 ga [5]
- Van mark $2k - 26 ga [6]
18 gauge
- It is 1 mm [[7]] and 2 lb/sf [8]. Thus a 8x4 foot sheet is 64 lb. Lighter than OSB at 75 lb for 3/4".
- Design formulas [9]