markblue777
Established Member
Hi all,
I am working on my extension (flat warm deck roof) and need to run some plumbing through. According to building regs where I can drill my joists falls half way through my sky line (I have to drill through 2 sets of sistered joists with 2 28mm holes (or there abouts as taking through 22mm pipe).
As they are sistered are drill regs different or is it something I would need to check with my DS?
Cheers
Mark
I am working on my extension (flat warm deck roof) and need to run some plumbing through. According to building regs where I can drill my joists falls half way through my sky line (I have to drill through 2 sets of sistered joists with 2 28mm holes (or there abouts as taking through 22mm pipe).
As they are sistered are drill regs different or is it something I would need to check with my DS?
Cheers
Mark
