diff --git a/docs/cnx_vinyl_parametric.FCStd b/docs/cnx_vinyl_parametric.FCStd new file mode 100644 index 0000000..d3196dc Binary files /dev/null and b/docs/cnx_vinyl_parametric.FCStd differ diff --git a/docs/finance/phase1-construction-rfq.md b/docs/finance/phase1-construction-rfq.md index 4e0ba15..7d3eb29 100644 --- a/docs/finance/phase1-construction-rfq.md +++ b/docs/finance/phase1-construction-rfq.md @@ -1,8 +1,8 @@ # Phase 1 Construction: Rough Pricing Request Spec sheet for asking a contractor for a budget-level price on the phase 1 -buildings and site works. Quantities come from the massing model -(`docs/factory_building_rough.FCStd`) sited on the candidate Mueang Chi +buildings and site works. Quantities come from the parametric model +(`docs/cnx_vinyl_parametric.FCStd`) sited on the candidate Mueang Chi parcel; everything here is planning-stage, not construction documents. In Thailand this scope is typically quoted as a PEB (pre-engineered steel building) per m² plus civil works, and the sheet is structured that way. @@ -16,12 +16,13 @@ zoning is unverified, so this is a budget number, not a bid. |---|---| | Type | Single-storey steel portal frame (PEB), no mezzanine, no crane | | Footprint | **60 × 25 m = 1,500 m²** | -| Roof | Monopitch, **10° pitch**, roof plane ~1,520 m², low eave **7.0 m**, high side **~11.4 m** | +| Roof | Monopitch, **10° pitch**, roof plane **1,523 m²**, low eave **7.0 m**, high side **~11.4 m** (both above finished floor) | | Roof load | Carries a rooftop PV array (~425 modules, ~247 kWp): add **~20 kg/m²** dead load plus wind uplift on racking; PV mounts on the purlins | -| Envelope | **Insulated sandwich panels, walls and roof, PIR core — EPS core excluded** (fire and insurability), fire-rated class stated (FM-approved or B-s1). **Roof 100 mm PIR** with light-colored top skin, **walls 75 mm PIR**. Masonry/precast dado wall to ~2.5 m with panels above (impact, security, washdown), internally insulated so the envelope stays continuous. Taped/gasketed joints throughout — the building is air-conditioned (20–26 °C, 35–60 % RH) and must be airtight against smoke-season PM2.5. No skylights. Not bare metal sheet with blanket insulation | -| Floor | Ground-bearing slab rated **30 kN/m² UDL**, provision for machine plinths, power-floated finish | +| Envelope | **Insulated sandwich panels, walls and roof, PIR core — EPS core excluded** (fire and insurability), fire-rated class stated (FM-approved or B-s1,d0). **Roof 100 mm PIR** with light-colored top skin, **walls 75 mm PIR**. Taped/gasketed joints throughout — the building is air-conditioned (20–26 °C, 35–60 % RH) and must be airtight against smoke-season PM2.5. No skylights. Not bare metal sheet with blanket insulation. **See §1a for where mineral-wool core is required instead** | +| Wall quantities | Masonry/precast dado **170 m perimeter × 2.5 m = 425 m²** (impact, security, washdown), internally insulated so the envelope stays continuous; **sandwich panel above dado ~1,140 m²** | +| Floor | **200 mm** ground-bearing slab rated **30 kN/m² UDL**, provision for machine plinths, power-floated finish | +| Finished floor level | **+1.2 m above surrounding ground** — see §1b | | Doors | 2 loading doors (insulated sectional) as **sealed dock positions**: dock shelters/seals plus dock levelers, so the docked trailer acts as the airlock and doors never open to outside air. Personnel entrances with vestibule; fire exits per code | -| Loading dock | **Decide before pricing: dock-height (preferred) vs ground-level.** Dock-height means a recessed dock pit or ~1.2 m raised slab at the loading face — a civil-works item the contractor must include. The dispatch room behind the docks runs as a buffer climate zone, separated from the conditioned warehouse by interlocked high-speed roll doors | | Interior | **Shell only — no internal fit-out** in this price (clean room, offices etc. priced later) | On the slab spec: 30 kN/m² (3 t/m²) is the standard industrial warehouse @@ -32,6 +33,73 @@ value-engineering option is to zone the slab — 30 kN/m² under press hall and warehouse only, lighter under offices — but for rough pricing the whole floor is specified at 30 so the number is conservative. +### 1a. Panel core: where PIR is not enough + +PIR is specified for the general envelope because it gives the best thermal +performance per millimetre (λ ≈ 0.022 W/mK, so roughly U 0.28 W/m²K walls +and 0.21 W/m²K roof), which is what the conditioned interior needs. Two +places it should **not** be used, and the contractor should price +**mineral-wool core** panels instead: + +- **Fire compartmentation.** A panel's reaction-to-fire class is not a fire + resistance rating. Any wall required to compartment — production hall to + warehouse, and anything separating the boiler hall — needs rated + construction achieving **EI 60 or EI 120**, which in panel form means + mineral wool, not PIR. +- **Acoustics.** PIR performs poorly for sound, typically **Rw 25–30 dB**; + it is a stiff closed-cell foam and behaves as a mass-spring-mass system + with coincidence dips. Presses, compressors, chillers and the boiler are + all significant sources and the site is agricultural land, so a neighbour + complaint is a permitting risk. Mineral-wool core reaches roughly + **Rw 32–40 dB**. + +Ask the contractor to price the general envelope in PIR and to quote +mineral-wool core as a **separate rate per m²** for nominated compartment +and acoustic walls, stating the panel thickness needed to hold the same +U-value (mineral wool at λ ≈ 0.038 needs roughly 130 mm walls / 180 mm roof +to match, and is heavier — it may affect purlin and frame sizing). + +**Open decision:** which elevations are acoustically governed. That depends +on the neighbour to be identified at the land survey. Until then, price the +mineral-wool rate but leave the area provisional. + +### 1b. Raised floor and site fill + +The dock-height question is now **decided**: the whole building floor is +raised rather than forming a recessed dock pit. This is a civil works item +and must be included. + +| Item | Quantity | +|---|---| +| Compacted structural fill under the building platform | **1,711 m³** | +| Fill build-up | 1.0 m compacted fill + 200 mm slab = **FFL +1.2 m** | +| Reinforced concrete edge beam to retained faces | **56.1 m³**, ~85 m of retained edge | +| Battered faces | Two faces battered at **1V:2H** rather than retained (no edge beam) | + +The loading face and the car-park elevation are retained by the edge beam; +the other two faces are battered. The dispatch room behind the docks runs as +a buffer climate zone, separated from the conditioned warehouse by +interlocked high-speed roll doors. + +**Access at grade.** With FFL at +1.2 m the building needs its own access, +now modelled and to be included: + +| Item | Spec | +|---|---| +| Vehicle ramp | **10.5 m run × 4.5 m wide at 1:10**, rising 1,050 mm from yard level to FFL, sited at the far end of the building — opposite the docks, so it does not conflict with dock operations. **~22.9 m³** concrete | +| Personnel steps | **3 flights**: main entrance on the car-park elevation, plus two fire exits — one at the opposite end of the same elevation, one at the dock end. Each **1.5 m wide, 6 risers at 175 mm, 5 treads at 280 mm, 1.2 m top landing**. **~2.3 m³** each | + +Two things deliberately not in the model, to be priced anyway: **handrails** +to both sides of every flight and to the ramp, and **door thresholds**. + +The ramp is 1:10, which suits forklifts and vans but is **not** an +accessible gradient. If a step-free staff entrance is required, that is a +separate 1:12 ramp with intermediate landings — flag it now if wanted. + +Exit positions are provisional: they are placed for reasonable escape +distances on a 60 × 25 m footprint, but final numbers and locations follow +the fire strategy and the racking layout, neither of which is fixed. + ## 2. Detached utility yard Simple industrial enclosures beside the main building. @@ -51,13 +119,33 @@ PIR. | Item | Quantity | |---|---| -| Perimeter wall | **~444 m** boundary, ~2 m high block/precast, on strip footing | -| Main gate | Piers + sliding leaf, ~8 m clear opening | -| Truck apron + internal circulation road | Heavy-duty concrete paving, roughly **1,500–2,000 m²** (rigid pavement for laden trucks) | -| Car/scooter parking | Roofed canopies: **25 × 6 m** (10 cars) + **14 × 5 m** (~30 scooters), steel canopy carrying ~32 kWp PV | -| Guard house | Small (~12 m²), insulated/AC'd, with toilet | -| Tank foundations | Ring foundations for a **9 m dia × 4 m** fire water tank (~200 m³, ~250 t full) and a **5 m dia × 3 m** raw water tank, plus a small fire pump house. Tanks themselves are vendor-supplied bolted panels — foundations only | -| Drainage & sanitation | Site stormwater drainage, domestic septic/treatment for ~25 staff | +| Perimeter wall | **~444 m** boundary, **2.0 m** high block/precast on strip footing (~174 m³) | +| Main gate | **One** gate only: piers plus **bi-parting sliding leaves, 10.0 m clear opening** (2 × 5 m). The previously mooted second gate is deleted | +| Paving — heavy duty | **1,608 m²** rigid reinforced concrete for laden trucks: truck apron, dock face, internal circulation road, Phase 2 link | +| Paving — general | **2,779 m²** lighter hardstanding: car park, yard and margins | +| **Paving total** | **4,387 m²** — see note below | +| Car/scooter parking | Roofed canopies: **27.7 × 7.0 m (195 m², 10 cars)** + **13.7 × 5.5 m (76 m², 30 scooters)**, steel canopy carrying **~40 kWp** PV | +| Guard house | **12 m² (4 × 3 m)**, insulated/AC'd, with toilet; sited at the gate, north-west side | +| Tank foundations | Ring foundation for a **9 m dia × 4 m** fire water tank (~200 m³, ~250 t full) sited in the **north-west corner of the plot**, with the **fire pump house adjacent to it**; plus a **5 m dia × 3 m** raw water tank. Tanks themselves are vendor-supplied bolted panels — foundations only | +| Fire main | Ring main runs from the north-west corner to the buildings — quote the **length**, not just "a ring main" | +| Drainage & sanitation | Site stormwater drainage, domestic septic/treatment for ~25 staff — **see note below** | + +**On the paving quantity.** This is a deliberate increase: the site is now +paved continuously from the road frontage through to the Phase 2 building. +At 4,387 m² it is roughly 2.5× the 1,500–2,000 m² this sheet previously +carried, and it becomes one of the larger civil numbers in the package. Two +things follow: + +- The two paving classes are quoted separately on purpose. Do **not** price + the whole 4,387 m² at truck spec. +- Roughly the last third of the general paving is the Phase 2 approach, + which will be dug up again for Phase 2 piling and foundations. **Option to + price:** compacted sub-base only now, surfaced after Phase 2 completes. + +**On drainage.** 4,387 m² of pavement seals about **46 % of the 9,567 m² +plot**. Runoff increases materially over the agricultural baseline, and +stormwater attenuation — quite possibly a detention pond — may be required +for the factory permit. Ask the contractor to state what they have assumed. ## 4. Exclusions @@ -73,7 +161,14 @@ transformer (PEA), and land works beyond normal grading. soft-to-medium Lamphun valley soil and to **state the foundation assumption they price** (footings vs driven piles; a piled slab can add several hundred to 1,000+ THB/m²). The soil, not the slab spec, is the - main price risk in the whole package. + main price risk in the whole package — and it now applies to 4,387 m² of + pavement and a 1,711 m³ fill platform as well as the building. +- **Tank proximity to the building**: the fire water tank sits about 4.5 m + from the main building. Full, it is ~250 t on a 9 m ring foundation. On + soft ground, ask whether they price a deeper tank foundation, ground + improvement, or want the tank moved further off. +- **Panel core**: PIR general with mineral wool at compartment and acoustic + walls (§1a) — separate rate per m², and any frame implications. - **Sprinklers**: OH2 sprinkler system, ring main, and hydrants are planned but not designed (see [facility security](../facility-security.md)). Ask whether they price it or use a specialist sub — quoted separately either @@ -88,8 +183,10 @@ transformer (PEA), and land works beyond normal grading. - **THB/m² rough range for the PEB shell** at the insulated-panel spec above — not the bare-shed spec -- A lump figure for the site works -- The foundation/geotech assumption behind both +- Separate rates for **heavy-duty** and **general** paving +- A separate rate for **mineral-wool core** panel +- A lump figure for the rest of the site works +- The foundation/geotech assumption behind all of it That is enough to sanity-check against the ~24–42M THB Thai-sourced utilities baseline in the [utilities CSV](utilities-investment.csv); diff --git a/docs/renders.zip b/docs/renders.zip new file mode 100644 index 0000000..7632893 Binary files /dev/null and b/docs/renders.zip differ