Ok this is how Not to do a roof, I bet this is the 450g matting not the 600g! no expansion joints between boards, no gaffer tape across the joints to stop reading getting down between, not a single bandage in sight to reinforce the trims & joints, glue on the mitres? You have to apply resin directly to the OSB, I do these all the time, shocking workmanship, do yourselves a favor, go on Fibreglass course! 🤦♂️
Why do they use that wood that is not good and the humidity damages it quickly, especially when the climate changes, they should use treated and good wood since in front of my home they did the same thing that you do and in many cases the roof has rotted, those houses have 5 years of construction since they are new houses
Stopped vid again at 6.15 of film……… Obviously the guy that’s sanding the cured roof with a sanding disc is someone that has experience, but mistakes could be made and dig into the cured fibreglass Matt, safer to use hand held piece of sandpaper, yes bit sore on the knees and really- if the work with the roller has been done carefully, then not much sanding would be needed. The main thing to sand being any spikes of Matt as these could pull-in water and in time ruin a fibreglass roof.
Almost guaranteed that this will crack. Cant see any expansion joints included. It will probably last 7 years then leak at which time you'll be laying sealed bitumen rolls over the top. The fiberglass (marine quality or not) will expand and contract and then lift and split allowing water ingress. All this is first hand knowledge. To prevent or at least slow down the inevitable failure, roll out and seal some flat bitumen roof felt on top of the fibreglass because this will protect the fibreglass from the UV and direct heat. Do this soon and then the fibreglass will remain a good waterproof membrane. No fibreglass resin/colouring or finish offers true UV protection. Nothing wrong with using fibreglass - it's damn strong - mine has lasted well over 30 years. But I wish I'd protected the fibreglass from the elements with cheap bitumen felt right at the beginning - stuff that you can just keep adding as it, too, disintegrates over the years.
