I have had a fair bit to do with these jobs,and still have a good few pals installing,some hawking some right,high-end creations
Trouble is,when sticking them where they were not,originally,even to the regs products,twin-wall,lux boards,etc,the heat that CAN be generated,degrades fixings and adhesives,approved or not.
This has lead some installers,not to use some of the "approved" and "best practice" construction methods,as they eventually,give problems.
I cannot tell you,how many of these items,end up "ornament only",un-useable,and un-listable,at property sale time.
Too many Machinemart £200 units,and folk emulating what looked groovy in a sale room,has not helped the job.
...And all this bitterness,from someone who is a fan,and fitted his first gravity system and back-boiler at age 15
Sorry OP, how can we help?

