0 00:00:00.160 --> 00:00:03.140 Hi folks, this is Vincent Battalion with Renova Energy Corporation, 1 00:00:03.280 --> 00:00:07.980 and today we're gonna talk about, uh, roof mounting solar panels. 2 00:00:07.980 --> 00:00:12.060 There are many different ways that one can mount a solar panel, 3 00:00:12.070 --> 00:00:13.540 solar system to their roof, 4 00:00:13.960 --> 00:00:18.820 and not all of them require penetrations into your rafters. Okay. 5 00:00:19.570 --> 00:00:23.860 When we are establishing a, uh, mounted system on a rooftop, 6 00:00:24.360 --> 00:00:27.340 we have to be very careful for, for two forces. One, 7 00:00:27.520 --> 00:00:30.460 one force is the weight of the solar panels. 8 00:00:30.460 --> 00:00:34.820 The solar panels will add about three pounds per square foot of additional 9 00:00:35.450 --> 00:00:37.020 dead load to a roof. 10 00:00:37.520 --> 00:00:41.580 The second force we have to worry about is the sail force. In other words, 11 00:00:41.720 --> 00:00:46.500 the lift and that uplift force solar panels can withstand and the, 12 00:00:46.500 --> 00:00:51.140 and the mounting systems that we install are able to withstand a 120 13 00:00:51.250 --> 00:00:55.940 mile per hour upload. And that is most important for the majority of, 14 00:00:56.880 --> 00:00:57.160 uh, 15 00:00:57.160 --> 00:01:01.820 the AHJs or the authorities having jurisdictions otherwise known as the cities. 16 00:01:01.920 --> 00:01:03.020 So through the permitting process, 17 00:01:03.410 --> 00:01:08.380 they wanna make sure that you've got a racking system or a mounting system 18 00:01:09.000 --> 00:01:13.580 on your solar that will be able to withstand that sail force or that 19 00:01:13.680 --> 00:01:17.460 uplift force. Uh, that is generally throughout the United States. 20 00:01:17.530 --> 00:01:21.540 Some areas have super high winds, so they get up to 140 mile an hour. 21 00:01:21.760 --> 00:01:23.260 And then you would need, uh, 22 00:01:23.420 --> 00:01:28.020 a more forceful way of establishing the connections on your roof between your 23 00:01:28.020 --> 00:01:29.780 solar panel and, uh, your, 24 00:01:29.840 --> 00:01:34.740 and the racking system that it's on and the roof rafters itself. So, 25 00:01:35.040 --> 00:01:37.740 for example, if we're looking at penetration systems, 26 00:01:37.850 --> 00:01:41.900 here you see four different types of roofing material, uh, 27 00:01:41.900 --> 00:01:45.860 that you'll usually normally find out here in the desert. So you've got a, 28 00:01:46.020 --> 00:01:49.620 a standard tar type material or what we call comp composite. 29 00:01:49.690 --> 00:01:52.740 There's composite roll or composite shingle, 30 00:01:52.820 --> 00:01:55.500 which I'll show you on a roof over here on the composite roll. 31 00:01:55.720 --> 00:01:59.340 You'll see that what we have that are called stanchions, uh, 32 00:01:59.340 --> 00:02:01.340 stanchion is a French word. It means leg. 33 00:02:01.720 --> 00:02:06.260 So these legs penetrate in through the roof membrane. 34 00:02:06.310 --> 00:02:10.300 First the roof material, then into the roof membrane and will penetrate them. 35 00:02:10.360 --> 00:02:13.940 And we'll find the rafter penetrate using a lag bolt, 36 00:02:13.990 --> 00:02:17.540 which screws the stanchion into the rafter. Again, 37 00:02:17.540 --> 00:02:20.340 that will keep the stable, uh, 38 00:02:20.540 --> 00:02:25.420 stability for the solar system and maintain at least that 120 mile an hour 39 00:02:25.730 --> 00:02:30.020 grab to keep your solar system down. You've got from the stanchion, 40 00:02:30.070 --> 00:02:33.140 we'll boot around the set the stanchion with the material. 41 00:02:33.210 --> 00:02:37.740 When we have like an E P D M or a rubber type material, normally we would just, 42 00:02:38.320 --> 00:02:39.040 uh, uh, 43 00:02:39.040 --> 00:02:43.500 put a flashing in so that we make sure that this penetration has no issues with 44 00:02:43.690 --> 00:02:46.940 rain in the future. Uh, on top of that stanchion, 45 00:02:46.940 --> 00:02:51.620 then you would attach your rail system and it's super non, 46 00:02:51.960 --> 00:02:53.300 uh, uh, rocket science, 47 00:02:53.350 --> 00:02:57.140 where on top of that rail system you would install the solar panel. 48 00:02:57.400 --> 00:02:59.820 So those are your three most common. Fourth, 49 00:02:59.880 --> 00:03:02.300 if you have a standing seam metal roof like this, 50 00:03:02.640 --> 00:03:06.020 you can attach these clips and those clips will, 51 00:03:06.450 --> 00:03:09.700 will grasp the standing seam. We can go up to one inch. 52 00:03:09.720 --> 00:03:11.100 So from a quarter inch to one inch, 53 00:03:11.280 --> 00:03:16.060 it grasps that that steel super hard and keeps the solar system down to 54 00:03:16.260 --> 00:03:19.340 maintain that hole for 120 mile an hour lifts. 55 00:03:19.530 --> 00:03:24.420 Over here we have the composite shingle style material. You'll see stanchions, 56 00:03:24.680 --> 00:03:28.100 you'll see flashings. You'll also see an attachment method, 57 00:03:28.670 --> 00:03:32.260 which allows us to attach into the roof membrane, 58 00:03:32.680 --> 00:03:37.140 but it doesn't require the severe lag, uh, 59 00:03:37.140 --> 00:03:39.020 penetration like you see with the stanchion. 60 00:03:39.240 --> 00:03:43.900 And it'll allow us to go underneath the tile and then attach the rail 61 00:03:43.920 --> 00:03:48.660 system and the solar panels on top. The final solution that we can offer, 62 00:03:48.680 --> 00:03:50.220 if you don't want penetrations at all, 63 00:03:50.510 --> 00:03:53.940 would be a ballasted system like you see up here. 64 00:03:54.240 --> 00:03:58.020 You'll see the ballast trays on either side of the solar panel. 65 00:03:58.320 --> 00:04:03.180 We simply add a concrete weight onto the ballast and there are 66 00:04:03.180 --> 00:04:04.020 no penetrations. 67 00:04:04.160 --> 00:04:08.900 And that ballast system will allow the solar system to maintain a 68 00:04:08.930 --> 00:04:13.220 grab so that you don't get that sail effect at 120 mile an hour, 69 00:04:13.480 --> 00:04:18.300 and it doesn't add to go over that three pounds per square 70 00:04:18.300 --> 00:04:21.820 foot of dead load. So that in a nutshell, 71 00:04:21.960 --> 00:04:25.460 are our penetrations and non penetrated way to, 72 00:04:25.680 --> 00:04:29.300 to install your solar panels. I hope you've learned something. Uh, 73 00:04:29.360 --> 00:04:33.380 go solar and visit our webpage, renova energy.com.