willbish Posted October 23, 2019 Share Posted October 23, 2019 I found this picture on instagram interesting as Im soon to start a similar roof build up. They've cut hundreds of small pieces instead of using lengths as counter batten. Is the ventilation advantage worth the extra work? Its an Australian build but don't they need to use treated timber I'll be using GSE solar mounts and this method would work i think, and potentially allow increased ventilation and performance of PV panels. What do you reckon? Link to comment Share on other sites More sharing options...
scottishjohn Posted October 23, 2019 Share Posted October 23, 2019 (edited) yes no reason why not --but suprised not treated as australia has termites does it not bigger size batons than we use --looks like 2 x1-- maybe want bigger air gap from tiles due to hot temps in summer don,t think it would be cheaper must be big tiles looking at spacing vertically -- but if aus guessing its a tin roof Edited October 23, 2019 by scottishjohn Link to comment Share on other sites More sharing options...
Sam Barn Posted October 23, 2019 Share Posted October 23, 2019 Hi mate, surely that would take so much longer for not much gain in ventilation? Need to spend less time on istagram and more time on the roof! Link to comment Share on other sites More sharing options...
Temp Posted October 23, 2019 Share Posted October 23, 2019 Perhaps they just had a load of offcuts left over and an apprentice carpenter needing a job :-) Link to comment Share on other sites More sharing options...
Temp Posted October 23, 2019 Share Posted October 23, 2019 1 hour ago, scottishjohn said: must be big tiles looking at spacing vertically -- but if aus guessing its a tin roof Their Instagram page says Lower roof #wrb installed thanks to @carlo.vavallo (the #airtightness sensation). Battens at 450mm centers as this is only a 4 degree roof with #trimdeck roofing being installed. We don’t want any kinks in the roof. All done with #sigatape . Nearly ready for roof! #craftsmenqualitybuilders #passivehouse #passivhaus and #wrb installed on upper roof thanks to @wilburpomorin and @bren_hales - the boys have an excellent job! Some serious counter battens as we felt this was the most cost effective option. Still some taping to go and fascia and we’re ready for a #roof #craftsmenqualitybuilders #passivhaus #passivehouse #airtight #sigatape Trimdek is indeed metal sheeting. Link to comment Share on other sites More sharing options...
scottishjohn Posted October 23, 2019 Share Posted October 23, 2019 (edited) 1 hour ago, Sam Barn said: Hi mate, surely that would take so much longer for not much gain in ventilation? Need to spend less time on istagram and more time on the roof! more than twice the gap of a 45mm baton --and some use 38mm batons don,t see why it would take any longer at all--but not treated --idon,t like that chalk line the verticals and put straps where you need them Edited October 23, 2019 by scottishjohn Link to comment Share on other sites More sharing options...
willbish Posted October 23, 2019 Author Share Posted October 23, 2019 1 hour ago, Sam Barn said: Hi mate, surely that would take so much longer for not much gain in ventilation? Need to spend less time on istagram and more time on the roof! Stuck on this bleddy tugboat so no chance of any roofing again today. I don't doubt it would take an age. Especially as my batten spacing is 190mm for slates. Just wondering why these guys thought it was a worthwhile use of their time. Perhaps the ventilation is a lot better. I think the ends of the batten would regularly split when fixing. Link to comment Share on other sites More sharing options...
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