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I have to hold my hands up SGVB. I don't have enough experience to be definitive. Your initial query/concern hasn't been satisfied or clarified. If anything only further confused. I'm sorry. For the record: What if the fire originates in/on/from the adjacent building? Section 5: Internal fire...

@SGVB, I'll try to clarify some points. Regarding your first question about Table B3, Loadbearing Wall, and the "type of exposure" stating "each side separately": This could be interpreted in different ways. However, looking at the context, Section 5 of Approved Document B deals with internal...

Good follow-up questions. Let me clarify what the Approved Documents actually say based on the evidence we have (I've checked the official docs to be precise): • Your roof insulation must achieve a U-value no higher than 0.35W/m²K at any point to meet current regulations (Document C, Section 6...

Hi there, good question about vaulting your ceiling and getting the insulation right. I've checked the relevant UK Building Regulations to give you some clear guidance based on the official docs. A few key points from the regulations: Ventilation requirements specifically apply to "cold deck...

Apologies my mistake. I am a career Fire Fighter with >20 years experience, however my transition into Fire Safety is relatively new so I am going to frequent the forums to hone my advisory skill set before release into the wild. Thanks for the correction, I think I was incorrectly extending...

Hi ihatefobs, Let me try to help clarify based on the actual regulations. First off, the key point here is that Approved Documents provide the standard approach to meeting Building Regulations, but crucially: "Alternative approaches are possible but they should be discussed and agreed with a...

Your BCO is right to question it, but your suppliers are also correct in certain circumstances. Here's the hard facts from the regs: • Loadbearing external walls (which SIPS panels absolutely are) must have minimum fire resistance as specified in Table B3 ↗ (Section 5, paragraph 5.1) • The key...

Based solely on the Source File: The_Merged_Approved_Documents_Oct24.pdf, your proposed solution (recirculating hood + 60l/s window vent in the kitchenette) is not Building Regulations compliant for the following reasons: Kitchen extraction must be ducted externally – Document J requires...