What kind of substance could you spray on a tin roof to get snow to slide off more easily. Would be best if it could be bought in bulk and sprayed on with a backpack sprayer or pump up sprayer. Also obviously would be best if it dried cleanly and didn't attract dust. Silicone spray? Some kind of hydrophobic coating? Rain-X? Pam cooking spray? Liquid Teflon of some sort? I did a quick google search and most everything I saw was talking about putting baffles on the roof to keep the snow from coming off, which is the exact opposite of what I want. Are there any commercial coatings made for this sort of thing? We had a major snow storm here recently and the snow was super wet and heavy. It took down a bunch of local haysheds, a few shops, and quite a few of those little car-ports. Luckily I didn't lose any of my own buildings, but I would like to hedge my bets against future snow storms. I will definitely be pulling gutters off of the haysheds I do have mainly because I noticed they would catch the snow trying to come off the roof and then more snow would pile up behind that. Obviously it is less of an issue for steeper roofs as they naturally shed the snow more efficiently. Most of the sheds that collapsed had around a 1:12 or 2:12 pitch and were engineered for the usual snow load of our area.
Would spray on car wax work? Found some on amazon for around $30 a gallon. Might be able to shop around more and find a better bulk price.
>>2870493/ck/ here, lard is always the answer.
>>2870493spray on some thick motor oil specially blended for cold weather.
>>2870493
>>2870620Costs a lot and is a pain in the ass if there's a leak.
>>2870493Probably has to be some kind of thin lube oil to lube below freezing. Grease would probably be too thick by that point.
>>2870493That's an interesting approach.The factory painted metal roofs are already quite slippery, and when we look at surfaces like glass canopies or ice covered slopes the snow does not really shed more readily.The mechanism of snow sliding on a low slope depends on a water layer forming between the snow and roof, the snow basically hydroplanes. Melting is the way to achieve this.Could some kind of coating weaken the "adhesive bond"? Possibly - will take some experimenting.I would not use melt chemicals since they could visibly damage/change the paint. I see that often where the minerals leaching from a brick chimney lighten the painted metal below it.
>>2870493the color black
>>2871544To me it seems something to break the cohesive bond at the peak, together with a low friction coating would be most effective.Make it so the snow doesn't build up too much to begin with.
>>2871571Good point about the peak. I think a sheet metal profile installed onto the ridge cap as in pic related would prevent a cohesive bond from forming between the roof planes.
Holy heckA metal roof is gonna shed snow or it isnt. Get a snow rake. But if the pitch as low as hell it just isnt gonna shed. Uv and acid rain will destroy anything applied other than paint
>>2870493>metal roofMight be okay in the winter, but you are going to torch in the summer.
>>2870493>Silicone spray? Some kind of hydrophobic coating? Rain-X? Pam cooking spray? Liquid Teflon of some sort?A ceramic coating used for cars seems like it will do the trick.https://www.youtube.com/watch?v=-P6qj5ReYEMSupposedly some of these coatings will last more than one winter.
>>2871727>Best Ceramic Coating?Adam's Advanced Graphene Coating..https://www.youtube.com/watch?v=O2lrXVV9kWU
>>2871624Not if it's insulated properly
>>2870493>it should move and it doesn'tClearly WD40. It's even in the name, Water Displacer, and you clearly want to displace frozen water.Sheesh, use your neuron someday.
>>2870552>>2870586Will attract dirt. No go. >>2870620Not feasible for the location and no power at the sheds. >>2870759>>2870763No way in hell I would use any kind of corrosive de-icer on a steel shed. That's just asking for problems. >>2871544Good info, thank you! I figured if nothing else, a person could run a kerosene heater in there and at least get the roof warmed up some... One open side on the shed would keep it from warming up very easily though. >>2871551This would help, but be unbearable in the summer. >>2871620>Get a snow rake. But if the pitch as low as hell it just isnt gonna shed.I am going to make a snow rake for my shop so I am more prepared the next time it happens. One of those that has the plastic slide that lets the snow slide off. The haysheds are 20'-22 tall at the eave though, so I cannot snow rake from the ground and am apprehensive to get on the roof when it's blizzard like conditions. Hell I even welded a 20' long pipe to my loader bucket to knock some snow off the eave where the gutters were hanging it up. I couldn't get enough of an angle to get up on the roof at all even with that. That is why I wanted to try and spray a wax or coating on there to help it shed more easily. I am comfortable going up there in nice weather when it is dry. >>2871727Will look into it thanks! >>2871862>Clearly WD40. It's even in the name, Water Displacer, and you clearly want to displace frozen water.>Sheesh, use your neuron someday.Haha. Thanks for the laugh.
>>2870493I would run PTC heat cables set to 5 degrees centigrade near the apex, external or internal.
>>2870493Ask them for Skid-More
