BIMstack builds the graph that links every RFI, drawing, email, and site record — so your AI agent can read the whole story.
The drawing was right.
The email was clear.
The pipe is still through the beam.
No single person or tool had the full picture. That's how a $36k-a-day delay hides in plain sight.
Before
After
The coordination gap
A duct needs to shift 150mm north. The architect says so clearly. Watch what that instruction becomes by the time it reaches the person holding the tool on Level 3. None of them were wrong when they acted.
From: Architect
To: MEP Lead, Structural
CC: PM
“Shift the 300mm riser duct 150mm north per structural clearance. See attached rev C.”
✓✓ Delivered
Uploaded two days after the WhatsApp thread already moved on. Nobody re-opened it.
Installed against Rev B — the revision before the change. The photo proves it happened.
Tape measure. Three weeks after the email. One stalled pour.
Same instruction. Five formats. Zero shared record. The problem isn't the people — none were wrong when they acted. Information that travels through formats loses its version, its context, and its chain of accountability at every hop.
Not from bad people or bad plans. From information that travels through the wrong formats and loses its context at every hop. Peer-reviewed research, 2024–2026.
Errors, omissions, and rework on projects in the past 3 years — not outliers, the norm.
Dodge Construction Network [1]
The direct cost of on-site coordination failures, before accounting for delays and claims.
Dodge Construction Network [1]
Nearly a third of every working day undone by errors that better coordination would prevent.
Procore [2]
Coordination failures don't just inflate budgets — they drain contractor margins every year.
Dodge Construction Network [1]
of project time is lost just searching for data — before a single decision is made. Add the 28% lost to rework and nearly half the working day is undone by information failure.
Procore · Future State of Construction (2024) [2] · BCA Singapore requires 30% productivity gain from digital tools [4]
BIMstack links every RFI, NCR, ITP, and site record into a live construction graph — then runs an AI agent on top of it that spots risks, drafts responses, and surfaces the truth before it becomes a claim.
How it works
The graph feeds the AI. The AI acts on the graph. Every action is permanently traced. Each layer makes the others smarter.
Every RFI, NCR, ITP, drawing, and site record connects at creation — to the revision, the location, and the team. No setup. No manual threading. The graph builds from the work itself.
Scans the live graph continuously. Spots RFI-042 as a pour blocker on day 3, not day 14. Drafts the response, generates the ITP, notifies the right people — without being asked.
RFIs, NCRs, ITPs, submittals, site diary, lookahead — all cross-referenced in one place. The latest drawing revision is one search away — not buried in email or a shared drive.
Every decision is timestamped, linked to the drawing revision, archived permanently. When a dispute arrives six months later, the answer is a search — not a week of reconstruction.
Every time you raise an NCR, it's already connected to the drawing it was pinned on, the ITP covering that zone, and the RFI that answered the original design question. No setup. No manual threading.
Pin a defect on the drawing. The NCR is already connected to the drawing revision, the ITP covering that zone, and the team responsible. Zero manual cross-referencing.
Every document carries coordinates — grid reference, floor level, drawing revision. Context that lived in someone's head is now part of the graph.
Months later, when someone asks why a design changed or what caused rework, the answer is a search — not a meeting to reconstruct the story.
By day 15 the pour is delayed and a variation claim is drafted. The information existed. Nobody acted.
BIMstack AI reads the graph continuously — flags RFI-042 on day 3, drafts the response, generates the ITP, flags tonight's permit expiry.
Why this is different
Traditional tools store documents. BIMstack understands relationships. The AI reads a graph where every connection carries meaning.
LIVE · MONITORING
BIMstack AI Agent · Tower A
Scanning project graph
Continuous — no setup required
Cites the correct drawing revision and spec clause automatically.
Scoped to the work zone, with hold and witness points pre-populated.
Flags overdue RFIs, expiring permits, and pending CARs before they cost.
Ask in plain English. The AI reads the graph and responds in seconds.
Every pin has coordinates. Every NCR has a timestamp, a photo, and a drawing link. When a dispute comes six months later, the answer is a search — not a reconstruction.
Who did what, on which drawing revision, at exactly what time. Not approximated. Not reconstructed from memory.
Photos, sign-offs, and witness records are part of the graph — not floating in someone's camera roll.
When the project closes, the entire evidence trail is already assembled. No scramble. No disputed defects.
Evidence Trail · NCR-003
Rebar spacing · Level 3 · Grid B1
NCR-003 Raised
M. Torres · 14 Mar · 10:34am
S-204 Rev C2 · Grid B1 · Level 3
Rebar spacing non-conformant — ITP-12 linked automatically
ITP-12 Witness Complete
P. Nguyen · 14 Mar · 11:45am
Hold point H3 cleared · photo attached
Signed off on-site · linked to NCR-003
CAR Submitted
J. Reyes · 14 Mar · 3:20pm
Corrective action: rebar spacing rectified
2 photos · contractor sign-off attached
NCR-003 Closed
QA Manager · 15 Mar · 9:10am
Full trail: 4 events · 3 docs · 2 photos
Audit-ready · archived with handover package
Handover-ready · Dispute-proof · Searchable forever
Blockers surface earlier. Evidence is automatic. Handover is already done.
AI surfaces blockers days before trades idle.
Auto-linked sign-offs and photos close NCRs in hours, not weeks.
RFI-042 flagged on day 3. Response drafted, team notified — before the delay hit.
Pour delay cost avoided
Already in the graph. Handover is a search, not a scramble.
Drawings and RFI threads findable in seconds, not buried in email.
NCR-003 auto-linked its ITP, CAR, and photos. When the dispute came, the full trail was one search.
Dispute answered without reconstruction
Scenarios illustrate real coordination failure patterns. Industry: 28% of time lost to rework, 18% searching for data (Procore, 2024).
Early Access
BIMstack is in active development. Join the waitlist and we'll onboard you to a live project before public launch.
Waitlist open
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