Hi! I recently bought a new build for my terminally ill wife. I think the place is great but I'm worried about two things I hoped somebody could help me with. One is actually the roof - it has soffit vents only - somebody else told me ridge vents would also be good not only for ventilation but to secure the first row of tiles. I don't know what standards dictate.. maybe soffits are enough. (His was a Marley roof and two front tiles fell off before the builder put in ridge vents. Mine is a Russell roof). To the main issue.. I remember a co-worker told me years ago that pipes in his loft were connected with tape and that this started to leak waste gases into his loft. He had a battle with his builder to get a proprietary seal put in to join the pipes. I understand even if pipes are low pressure, an air tightness test still has to be done, even if just 100mBar for 5 minutes on bathroom exhaust pipe. I don't think that's been done and was told that tape connecting my pipes is ok - duct tape, fit for purpose. I'll post two pics and please, if you could advise, that would be a massive help... With the wife's illness I'm really struggling to check this out according to any sort of standard and don't know what to do. The one with blue tape is from the kitchen and en suite, I think. The one that looks like it's been sealed with masking tape is the main stack from the main bathroom, I think.. I don't know why tape would be used if a proper rubber seal was already in place.. Apart from this, and it may not be an issue, I'm pleased and think the site team is good, so want to stay on-side. Thank you !