How to Stop Metal Roof Sweating / Condensation / Dripping

hey everybody my name is Sam and welcome back to Sam craft in today's video I'm going to continue a project that I started over a year ago that project is insulating the roof of my storage shed workshop so that it doesn't condensate and drip water all over my tools this is what I like to call the poor man's spray foam insulation technique there are three things you need for this project one is the foam board insulation for Mike stop I'm using polyisocyanurate board and the product name brand is called armax but that may not be what you find in your area it is a half-inch thick board there's an r-value of three point something which is pretty good considering the very small thickness of the board in addition to the foam core board you're going to need some expanding foam sealant or in this case the brand name I'm using is called great stuff there's also other companies and other product names that make the same kind of stuff it's pretty much the thing in the can you squirt spritz out foam and it expands and then lastly what you'll need for this project is some construction adhesive any kind of Ram will do any kind of basic thing will do the overall process is to cut your boards so that you can fit them between your rafters and place them right up next to your metal roofing in my case this meant I had to cut two foot wide strips that were four feet long fish them up between the spaces and fill in the gaps after you have your panels cut to size you want to put some construction adhesive on the back of the panels or on the bottom of the roof I kind of did both depending on where it area I was working in give the construction adhesive some time to get tacky and then place it against the roof optionally holding it in place with little sticks across the rafters which is what I had to do I cut a handful of these small little scrap pieces of wood about six inches long I then fed them up above the rafters and below the foam board and allowed me to suspend and hold the joints of the board together and up against the metal roof until the construction adhesive had time to sit once all the panels are in place you take your expanding foam sealant and spray and seal every perimeter crack joint nook and crevice you want to create a solid barrier of insulation material whether it be foam board or the spray foam up against your metal roof and away from your workshop or your space what this does is preventing the air to come in contact with the metal roofing to thin condensate and drip as far as tools for this process you're gonna need something to cut the foam boards with probably a ladder a caulk gun for your construction adhesive and possibly a handsaw and scrap pieces of wood if you go that route like I did I can tell you for certainty in my area this works I've had this in place in my home office which is in the same building that my workshop is in for over a year with no issues with condensation dripping moisture accumulation or anything of the sort well guys I hope you enjoyed getting to see me scuttle around on the ladder and prevent the condensation from my metal roof in my unheated workshop again this is a tried-and-true method it works fine for me and I've had zero issues so I'm confident to give this to you as a solution and it should really work for you too if this video was helpful give me a thumbs up if you liked it or have any comments leave me a comment down below as well and I'd love to read them otherwise I'll see you guys next time in the workshop you

Channel: Samcraft

Views: 90,646

Rating: 4.8444996 out of 5

Keywords: sam craft, stopping metal roof dripping, how to stop metal roof dripping, insulating shed roof, samcraft, how to stop metal roof sweating, metal roof insulation, why metal roof sweats, stopping metal roof condensation, why metal roof drips, how to stop metal roof condensation, diy spray foam insulation

Id: Is0q0a_SJpk

Length: 4min 50sec (290 seconds)

Published: Wed Jan 29 2020