Penetration system schedules drafted from the field log, with unmatched openings listed for your project manager.

A project's field log says what is in each opening: the floor and room, the barrier, the item passing through, its size, and whatever the installer measured. Your project manager sets those lines against the life safety plans, the rated wall and floor types and the listed systems your company keeps on file, then writes the schedule the specification calls for.

In the test, AI reads copies of those records and drafts the schedule: each penetration's barrier type and rating, its penetrating item and size, its annular space, and the listed system your team named for it or the listings on file whose stated conditions match, shown for your project manager to choose from. Anything with no matching listing goes on its own list for your project manager to resolve with the design team. Nothing is submitted, and the draft chooses no system.

The number is a sentence in code. UL's published key opens with C, F or W for walls or floors, floors only, or walls only. The next letters name the construction: A and B for concrete floors on either side of 5 inches, C for framed floors, G for cross laminated timber floors, J and K for concrete or masonry walls on either side of 8 inches, L for framed walls, N for composite panel walls. The first digit then names what passes through: 1 metallic pipe, conduit or tubing, 2 nonmetallic, 3 electrical cables, 4 cable tray, 5 insulated pipe, 6 electrical items like busducts, 7 mechanical items like air ducts, 8 a grouping of those, and 0 nothing at all. A series that runs out moves to five digits, as C-AJ-2999 will. Montgomery County, Maryland's permitting guide walks one example, C-AJ-3154, character by character. A log line reading "3 inch pipe, block wall" can't be set against that code until it says what the pipe is made of and whether it is insulated. New York State's master section also accepts designs from Intertek's and FM's directories, so the draft keeps the directory each system came from.

Each owner's schedule has different columns. New York's section asks for product reference numbers, design number, location, the item's material, size, insulation and combustibility, the maximum annular space or opening, wall and floor construction, the hourly rating, and F and T ratings, then says the schedule is for information only and won't be acted on for approval. The University of Maryland, Baltimore wants barrier type with rating, size and type of penetrating material, UL system number and product name, and rejects partial submittals, so every penetration on the project has to arrive in one package. Northwestern University asks for a use matrix of maker and system by condition. The Dormitory Authority of the State of New York's sample form limits T to floors and adds L and W where available. Your reviewer names the format for each old job before the first draft.

F, T, L and W answer different questions. Montgomery County's guide defines F as passage of flame, T as fire and temperature, L as air and smoke leakage and W as water resistance, and says the model codes need no T rating on a floor penetration inside a wall cavity. NIH's specification asks for T only on floors outside wall cavities and rated shaft enclosures. The International Firestop Council warns that in gypsum walls, a listing at one rating doesn't automatically cover another unless it says so. New York notes that its code doesn't require W but a project may want it, and the University of Maryland, Baltimore wants a Class 1 W-rated system at every new and existing floor penetration. The draft shows which rating columns each line has and which the listing on file doesn't address.

Annular space is where logs go thin. Montgomery County calls it the opening around a penetrating item, says its tolerances must be followed, and warns they can change with the rating sought. The Council's inspection video names what else to record: whether a plastic pipe is vented or closed, the type and thickness of any insulation, the largest diameter of a cable bundle, whether a tray is steel or aluminum and how deep its fill runs, and whether a sleeve is present. Some systems allow point contact, it adds, while combustible pipe needs room for material to expand and sprinkler pipe looks to NFPA 13. Owners pile on: the University of Maryland, Baltimore requires black steel sleeves at new floor penetrations, and NIH wants floor openings with annular space over 4 inches in traffic areas to carry the floor load. The draft carries the log's numbers and marks each field it can't find, rather than assuming one.

The open list is the point of the job. Montgomery County's guide says a modification to a tested system voids its rating. Where nothing listed fits, Northwestern wants the modified illustration approved by the maker's fire-protection engineer as an engineering judgment, with the authorities having jurisdiction approving before submittal, and the Council's 2025 pocket guide says plan submittals should always show which details rest on judgments. The draft never writes one. It lists the penetration, the barrier, the item and what the listings on file don't cover. Your reviewer will look for a listing matched to the wrong barrier, a size or annular space outside what a listing states, a missing field passed over in silence, and any line that reads like a ruling. Rules here are summarized for context only and are not legal, code or engineering advice.

With your reviewer's yes, new logs get the same draft schedule for about 30 days.

Your project manager reviews every line and decides every system before anything is submitted, and unmatched penetrations still go to the design team and the authority having jurisdiction.

Drafts stay side by side with what you would have sent. Any next job carries a separate price.