I recently inherited a unit in a quad-plex that was built during World War II and is classified as mutual housing. The space is just under 800 sq/ft, and I'm trying to comply with the housing board's request for permits to add insulation and sheetrock after gutting the place. The original setup had no insulation and just plaster on the walls and ceilings.
I submitted plans showing R15 insulation in the walls and R30 in the ceiling, which should meet New Jersey's requirements. The exterior is brick, so I can't fit anything thicker in the walls. I also planned to use double 5/8" fire-resistant sheetrock on the party walls.
However, my permit was denied because they said I need an architect to design the insulation and sheetrock, along with UL approved stamped drawings. This has left me confused since the housing board and various contractors I've spoken to can't believe this is necessary. I've navigated permits before but never encountered this issue. I want to do everything by the book, but I'm looking for advice or experiences from anyone who's dealt with similar situations.
4 Answers
It sounds like the housing board might be applying some strict regulations, possibly due to the historical nature of the building or safety standards for multi-unit housing. It could help to ask them directly which specific code requires the architect's involvement. Sometimes the codes can feel a bit over the top, but knowing exactly what they're citing could give you a clearer path forward. If you can get clarity there, it might open up other options for you.
From my experience, plan reviewers can be pretty strict and literal with guidelines. When my submissions got rejected, they always pointed to specific sections of the code that needed clarification or adjustments. It's possible your proposed insulation didn't meet the required R-values, leading them to ask for a certified pro to back up your claims. I’d recommend asking them for clarification on what exactly was lacking in your plans.
It's not uncommon for building codes to require detailed information about wall assemblies, especially between units. Although I don't see why an architect is essential, you might find useful resources online that provide information on wall assemblies. Check out USG's wall assembly guides—they can help you figure out how to meet your local building code without needing to reinvent the wheel.
Honestly, it’s annoying how these regulations can complicate things. But stick to your guns and keep pushing for what you need. Make sure to really dig into the codes they’re referencing to find your best angle of attack. Good luck!