what is correct gauge sheet metal for new ductwork - HVAC-Talk
2013年11月26日 · Table 603.4. Round ducts and enclosed rectangular ducts 14 inches or less minimum thickness 0.0157 equivalent galvanized gauge size 28. M1601.1.1 Above-ground …
Duct board vs. sheet metal - HVAC-Talk
2014年5月25日 · About the only thing I can say good about duct-board is that it seldom sweats in the crawl, whereas insulated metal will, and, it is easer when it comes to change-outs, lol. The …
Correct sheet metal and insulation for new ductwork - HVAC-Talk
2013年11月12日 · TABLE M1601.1.1 (2) GAGES OF METAL DUCTS AND PLENUMS USED FOR HEATING OR COOLING. DUCT SIZE GALVANIZED ALUMINUM. Minimum Thickness. …
Duct Board vs. Sheet Metal plenum rebuild - HVAC-Talk
2014年6月25日 · hardware cloth to back side of lattice. use vinyl lattice rather than wood which will rot in time. also while co is replacing plenum, have them mastic seal. every duct take off of …
Insulation INSIDE supply ductwork - HVAC-Talk
2008年5月31日 · Wrapping sheet metal can save both the customer and company money. Its easier to move air through unlined sheet metal then to move it against the higher friction of a …
Ductwork; 26 versus 30 gauge - HVAC-Talk
2011年8月11日 · I’m just trying to rank the severity of this difference. 26 gauge is a lttle more expensive and heavier duty! i.e. it has more metal in it! if you like the guy with the 30 gauge …
Connecting ductboard to air handlers - HVAC-Talk
2014年9月29日 · The first duct job I ever did was made by screwing a piece of flat sheet metal to the bottom of the floor joists. It was 2" wider than the required duct width. Each edge had a slip …
Fiber Duct vs. Sheet Metal Duct - HVAC-Talk
2010年7月19日 · Don't even consider ductboard. Sheet metal, properly sealed and insulated is the better, higher quality way to go. Reply. 07-19-2010, 05:33 PM #3. hvacvegas. Professional …
Galvanized sheet metal - HVAC-Talk
2023年11月17日 · 38,984. Post Likes. Iron is not steel. Galvanized sheet metal for air ducting is cold rolled steel sheet with a coating of zinc. For sheet metal, so far as I know, it is …
Does anybody do sheet metal ducting anymore??? - HVAC-Talk
2016年1月18日 · I had a very reputable contractor come by and I asked him about replacing the ductwork with new sheet metal stuff. Apparently, nobody remains in my part of Florida to do …