Ground up grow build

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It’s a shell still got a ways to go. Roof is next. I will be installing 3 inch polyiso rigid board mechanically fastened to the top of the plywood. Then mechanically fasten TPO on top of the ISO. I was wanting to leave the rafters exposed to fasten unistrut for hanging lights and such from the ceiling. View attachment 901243 View attachment 901244 View attachment 901245 View attachment 901246 View attachment 901247 View attachment 901248 View attachment 901249
hanging lights hell,that a 10 ft tall ceiling isnt it,inset them lights exhaust,intake fans in the top 2 ft ,just like a attic,put smoke alarm covers over the ends and none that even be exposed,root full of lighting hahahah,looking like your doing a good job at it
 
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It is perforated scrim paper. I follow you on that. I’m always calling out insulating contractors installing with unperforated scrim on the commercial buildings at work.
cool just thought i would mention my mistake,i went and got tyvek and never had any more issues when i replaced it,my insulation and decking were sandwiching,the tyvek does a good job,you would thing house wrap is what it is,but names do qualify for when you plan something you dont want to rebuild ,dig,hell ya i put them lights and filters in the crawl space,you got to have some kind air flow,it be 80 outside and 120 inside without ventalation,even if it just a foot going down middle,that was the worse thing with mobile homes,ac work it ass off until you built another roof with air space about 2 in ,bug and wasp atractant,but middle of day the ac barley working
 

1diesel1

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cool just thought i would mention my mistake,i went and got tyvek and never had any more issues when i replaced it,my insulation and decking were sandwiching,the tyvek does a good job,you would thing house wrap is what it is,but names do qualify for when you plan something you dont want to rebuild ,dig,hell ya i put them lights and filters in the crawl space,you got to have some kind air flow,it be 80 outside and 120 inside without ventalation,even if it just a foot going down middle,that was the worse thing with mobile homes,ac work it ass off until you built another roof with air space about 2 in ,bug and wasp atractant,but middle of day the ac barley working
I’m treating this build as a clean room. 10 foot walls will be rapped in white TPO, floors TPO. I’m trying to get as air tight as possible sos I can run cO2 as effectively as possible.
 
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I’m treating this build as a clean room. 10 foot walls will be rapped in white TPO, floors TPO. I’m trying to get as air tight as possible sos I can run cO2 as effectively as possible.
be carfull with that stuff bro had a neighbor that made a living growing tomatos,had the whole nine yard 100x100 greenhouse,she worked in that son bitch so much that during winter in there done something to her breathing 3 months later died,just careful,you dig,beside that if it does get unbearable in summer months ,what we down south is like a pole barn,just post with a roof bulit on it,leave about 4in open under there ,summer ,winter dont matter stays cool,have you decided what size ac your gonna run
 

1diesel1

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be carfull with that stuff bro had a neighbor that made a living growing tomatos,had the whole nine yard 100x100 greenhouse,she worked in that son bitch so much that during winter in there done something to her breathing 3 months later died,just careful,you dig,beside that if it does get unbearable in summer months ,what we down south is like a pole barn,just post with a roof bulit on it,leave about 4in open under there ,summer ,winter dont matter stays cool,have you decided what size ac your gonna run
4 ton carrier package unit single phase.
I’m also going to install a fresh air intake fan on the roof I can manually turn on when I’m working in the room.
 
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Just a curious question because I used to install it way back when. Did you consider using frp on the walls like they do in commercial kitchens? I always thought it'd be great to use unless the lights would cause it to deteriorate or something.
 

1diesel1

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Just a curious question because I used to install it way back when. Did you consider using frp on the walls like they do in commercial kitchens? I always thought it'd be great to use unless the lights would cause it to deteriorate or something.
Nice, never considered it but is a good idea.
I went with TPO because of the reflectivity to light and cleaning ability. And also cost.
I had 2 rolls 10x100 left over from a roofing side job I’ve been holding on to for a couple years specifically for this project.
 
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