Capture Before It's Hidden

    NHBC Pre-Plaster Inspection App for Site Managers

    The pre-plaster stage is your last chance to photograph what goes behind the boards. ProPlot makes pre-plaster evidence capture fast, organised, and impossible to lose.

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    Pre-Plaster
    Photo Evidence
    Works Offline
    NHBC & Part L

    Everything You Need to Document at Pre-Plaster

    These items are hidden forever once boarding starts. ProPlot helps you capture every one.

    Pre-Plaster Evidence Checklist

    • Insulation continuity at wall/floor junctions
    • Air barrier sealed around windows and doors
    • Vapour control layer correctly lapped and taped
    • First fix plumbing — pressure test evidence
    • First fix electrical — cable routes documented
    • Fire stopping at party wall penetrations
    • Cavity barriers installed at correct positions
    • Thermal bridging details at lintels and jambs
    • Ventilation system ductwork in position
    • Pipe insulation continuous through voids

    Capture Before It's Covered

    Pre-plaster is the last chance to photograph what's behind the boards. ProPlot makes it fast — tap, capture, done. GPS-tagged and linked to the plot automatically.

    Pin Photos to Drawings

    Drop pre-plaster evidence onto floor plans so your inspector can see exactly where insulation, membranes, and fire stopping were installed.

    Nothing Gets Missed

    Track every pre-plaster item per plot. See at a glance which plots are fully documented and which still need attention before boarding starts.

    Works in Unfinished Buildings

    Pre-plaster inspections happen in buildings without power or signal. ProPlot captures and stores everything offline — syncs when you step outside.

    Inspector-Ready Reports

    Generate a pre-plaster evidence report for any plot in one tap. All photos, GPS data, and annotations organised by location — ready for your NHBC or building control inspector.

    Every Plot Tracked

    Managing pre-plaster across 20, 50, or 200 plots? ProPlot shows you which plots are inspection-ready and which need more evidence.

    Why Pre-Plaster Evidence Matters More Than Ever

    The pre-plaster inspection is arguably the most critical checkpoint in the entire build. Under Part L 2021 and NHBC Buildmark standards, insulation continuity, air barrier integrity, and thermal bridging details must be verified before they're permanently concealed behind plasterboard.

    A failed pre-plaster NHBC inspection can mean stripping back finished plasterboard to expose and rectify hidden issues — costing thousands per plot and causing significant programme delays. Having complete, GPS-verified photographic evidence at the pre-plaster stage protects you from these costly callbacks.

    ProPlot's pre-plaster inspection app ensures every critical element is photographed, geotagged, and linked to the correct plot before boarding begins. Site managers can track which plots are fully documented and which still need attention — across dozens or hundreds of plots simultaneously.

    Pre-Plaster Inspections — FAQs

    Why is the pre-plaster inspection so important?

    The pre-plaster stage is the last point at which insulation, air barriers, first fix services, and fire stopping are visible. Once plasterboard goes up, these critical elements are hidden forever. If evidence isn't captured before boarding, it's gone — and failed inspections can mean stripping back finished work at enormous cost.

    What should I photograph at pre-plaster stage?

    Key items include insulation continuity at all junctions, air barrier sealing around openings, vapour control layer lapping, first fix plumbing and electrical routes, fire stopping at penetrations, cavity barriers, and thermal bridging details. ProPlot helps you track each item per plot so nothing is missed.

    Can I pin pre-plaster photos to specific locations on drawings?

    Yes. ProPlot's drawing pin feature lets you drop photos onto floor plans and elevations, showing exactly where each piece of evidence was captured. This is especially valuable for pre-plaster evidence where location precision matters.

    How does offline capture help with pre-plaster inspections?

    Pre-plaster inspections typically happen inside unfinished buildings where mobile signal is often poor or non-existent. ProPlot captures GPS coordinates using device hardware (which works without signal) and stores all evidence locally. It syncs automatically when you're back in range.

    Does this work for Part L pre-plaster evidence too?

    Absolutely. ProPlot's pre-plaster evidence features cover both NHBC Buildmark requirements and Part L building regulation compliance. Insulation continuity, air tightness, and thermal bridging documentation are core to both.

    Don't Let Pre-Plaster Evidence Slip Through the Cracks

    Capture everything before it's hidden. 7-day free trial, no credit card.