I'm glad I found this! I purchased the fasteners without the expnsion hole cutter thinking it would seal my corrugated polycarb roof better given a bigger hole in hacked through it. I'm glad too I haven't started installing the roof and I kept the Bunnings receipt for the screws. Just need to figure the water proofing of the roof against a compressed fibro. Cheers.
@@people-of As it turns out I'm investigating flashing along with a rubber sealant. Unfortunately it'll rain tomorrow so will have to wait it out before continuing. Cheers.
Is there a fastener which lets to fasten solar panel brackets to which aluminium panels will be mounted with panels? I have a pergola quite big enough and I'd like to put solar panels on that pergola instead of the house as I do not want water leaks in the house.
Hi there, generally your solar panel brackets will come with fasteners for fixing to a roof. Usually it'll be a system that has a washer that goes between the bracket and the roof, to prevent leaking. For polycarbonate roofing you'll need to make sure this washer is large enough to cover the expansion hole. You might need to purchase oversized washers. Thanks, Kurt.
@@sunnysidenz I have wooden planks 80x50mm, so decided to take 20x3mm steel flatbar cut into 120mm pieces. Make 8.5mm holes at the ends so that 82mm distance between holes. Using threaded rods 8M clamp the flatbars and make holes 15mm in corrugated sheets. in the top part of the rod put pair of nuts and between those nuts leg which will be holding the rail for solar panels. PVC 0.7mm will be plaing role of the oversized washer.
I've used the steel to wood fastener with rubber washer in the poly panels. Have not had any issues for 10+years. Placed in the valley for maximum screw retention into the wood. Done both locations but feel the valley is better. Have worried about corrosion of water running in the valley but have not noticed any issues.
Thanks! Just trying to complete a video to release soon, and I've been trying to find the plastic screw caps I used to install my multiwall-honeycomb 8mm polycarbonate sheets, (with the rubber donut that goes under them) But can't find them anywhere!! I hope I can find these metal screws with neoprene and washers with neoprene tomorrow... Do you recommend a special screw for this or NOT recommend a particular screw, like zink or stainless? also how big should the expansion hole be? I'm having this crackling noise in my gazebo, you can watch my video to see what im talking about. when its sunny or sunny and windy, the crackling is bad, its not super super bad like ive seen in some videos, but id like it to be 100% quiet. I'm hoping its just the screws, but im also reading it might be because I didn't put anything like a tape between my polycarbonate sheets and my purlins. Could that be it? I know theres a few screws that are on there too tight, and I know I made the screw holes the same size as the screws, so these are the two things I'm trying to tackle and fix before releasing my polycarbonate roofing video to show people what NOT TO DO. Thanks for your help. Also, if you wanna be featured in my video as the expert and give me some pointers or recommendations, I'd be happy to discuss!
Hi Mateo :) Hopefully you found some suitable screws for the multiwall. You need something with a large metal washer and then a neoprene washer underneath. And since it's outside it needs to be either galvanized or stainless. Either one is fine. Stainless will last longer, but galvanized will last longer than the sheets anyway. In terms of cracking, there are a number of causes. One of them will definitely be the screws not having an expansion hole. You'll need to drill a 12mm expansion hole first (about half an inch). Also, the screws may be too tight. The second thing might be no room for expansion in the joiner. Is there a bit of a gap for the sheets to move in that joiner? Happy to help out on one of your videos :) I'll DM you.
@sunnysidenz thanks Ed,....What would you recommend instead of screwing the sheets to the rafters? Basically each sheet will have one rafter in the middle for support. As I want to sheets to last I didn't really want to drill them so thought I could puta bead of silicone down the middle beam to keep it in place... its evo stick bond solent free... any advice would be much appreciated.. thanks Stephen
No worries Stephen. If you really don't want to screw through the sheet you could look at having a joiner on each rafter instead. So you can cut the sheets in half, have a joiner on the middle rafter as well, so all the sheets are held down with joiners (rather than screws or glue). Thanks, Kurt.
Excellent demonstration that was clear and concise. Very informative and enjoyable to watch..
Thanks for your comment :)
I'm glad I found this! I purchased the fasteners without the expnsion hole cutter thinking it would seal my corrugated polycarb roof better given a bigger hole in hacked through it. I'm glad too I haven't started installing the roof and I kept the Bunnings receipt for the screws. Just need to figure the water proofing of the roof against a compressed fibro. Cheers.
Hi there, glad it was helpful :) Perhaps you could use some sort of flashing for the fibro? Thanks, Kurt.
@@people-of As it turns out I'm investigating flashing along with a rubber sealant. Unfortunately it'll rain tomorrow so will have to wait it out before continuing. Cheers.
Is there a fastener which lets to fasten solar panel brackets to which aluminium panels will be mounted with panels? I have a pergola quite big enough and I'd like to put solar panels on that pergola instead of the house as I do not want water leaks in the house.
Hi there, generally your solar panel brackets will come with fasteners for fixing to a roof. Usually it'll be a system that has a washer that goes between the bracket and the roof, to prevent leaking. For polycarbonate roofing you'll need to make sure this washer is large enough to cover the expansion hole. You might need to purchase oversized washers. Thanks, Kurt.
@@sunnysidenz I have wooden planks 80x50mm, so decided to take 20x3mm steel flatbar cut into 120mm pieces. Make 8.5mm holes at the ends so that 82mm distance between holes. Using threaded rods 8M clamp the flatbars and make holes 15mm in corrugated sheets. in the top part of the rod put pair of nuts and between those nuts leg which will be holding the rail for solar panels. PVC 0.7mm will be plaing role of the oversized washer.
what about corrugated plastic to metal poles?
Hi there, the multipurpose fasteners would be suitable for this. They can be used on metal and timber. Thanks, Kurt.
I've used the steel to wood fastener with rubber washer in the poly panels. Have not had any issues for 10+years. Placed in the valley for maximum screw retention into the wood. Done both locations but feel the valley is better. Have worried about corrosion of water running in the valley but have not noticed any issues.
Thanks! Just trying to complete a video to release soon, and I've been trying to find the plastic screw caps I used to install my multiwall-honeycomb 8mm polycarbonate sheets, (with the rubber donut that goes under them) But can't find them anywhere!! I hope I can find these metal screws with neoprene and washers with neoprene tomorrow...
Do you recommend a special screw for this or NOT recommend a particular screw, like zink or stainless? also how big should the expansion hole be?
I'm having this crackling noise in my gazebo, you can watch my video to see what im talking about. when its sunny or sunny and windy, the crackling is bad, its not super super bad like ive seen in some videos, but id like it to be 100% quiet. I'm hoping its just the screws, but im also reading it might be because I didn't put anything like a tape between my polycarbonate sheets and my purlins. Could that be it? I know theres a few screws that are on there too tight, and I know I made the screw holes the same size as the screws, so these are the two things I'm trying to tackle and fix before releasing my polycarbonate roofing video to show people what NOT TO DO.
Thanks for your help. Also, if you wanna be featured in my video as the expert and give me some pointers or recommendations, I'd be happy to discuss!
Hi Mateo :) Hopefully you found some suitable screws for the multiwall. You need something with a large metal washer and then a neoprene washer underneath. And since it's outside it needs to be either galvanized or stainless. Either one is fine. Stainless will last longer, but galvanized will last longer than the sheets anyway.
In terms of cracking, there are a number of causes. One of them will definitely be the screws not having an expansion hole. You'll need to drill a 12mm expansion hole first (about half an inch). Also, the screws may be too tight. The second thing might be no room for expansion in the joiner. Is there a bit of a gap for the sheets to move in that joiner?
Happy to help out on one of your videos :) I'll DM you.
Awesome 👏 good points
Hi Edd.... I'm about to install a roof but don't want to screw through the sheets.. can I use some kind of glue on the second rafter instead?
Hi there, you can't really use glue on any clear roofing. It may break it down, and will eventually work free. Thanks, Kurt.
@sunnysidenz thanks Ed,....What would you recommend instead of screwing the sheets to the rafters? Basically each sheet will have one rafter in the middle for support. As I want to sheets to last I didn't really want to drill them so thought I could puta bead of silicone down the middle beam to keep it in place... its evo stick bond solent free... any advice would be much appreciated.. thanks
Stephen
No worries Stephen. If you really don't want to screw through the sheet you could look at having a joiner on each rafter instead. So you can cut the sheets in half, have a joiner on the middle rafter as well, so all the sheets are held down with joiners (rather than screws or glue). Thanks, Kurt.
so helpful
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