Sintered Stone Facade Specification Checklist for a Quote-Ready RFQ

A project-ready checklist for preparing a sintered stone facade RFQ across drawings, panel specifications, performance inputs, numbering, packing, delivery and responsibility scope.
LuCharlotte LuCharlotte 13 min read Updated
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Quick Answer

A useful sintered stone facade RFQ combines six records: project location and building height; current elevations, sections and critical details; substrate and structural-wall information; the target panel, surface and fixing direction; known wind, fire and other performance requirements; and a commercial schedule covering quantity, panel IDs, packing zones, destination, dates and responsibilities.

The package does not need to be perfect. Mark unresolved items as TBC, name the person responsible for closing them and state whether the quotation is preliminary, budgetary or based on an issued tender set. That is more useful than silently turning assumptions into fixed scope.

Start With the Project Facts That Change the Quote

A facade supplier cannot read exposure, code route, access or delivery conditions from a material name. Begin with the project country, city, building use, height, number of levels and current design stage. Add the approximate net cladding area and explain whether it is measured from elevations, taken from a bill of quantities or still an early allowance.

Location and height are not administrative fields. They help the project team identify the applicable code basis, wind and seismic environment, corrosion exposure, fire strategy, access method and delivery route. The two-page Blick rainscreen project-data checklist, for example, asks for detailed location so local regulations and loads can be reviewed. Its supplier defaults are not Funtek specifications; the transferable point is that the project basis must be visible before a fixing proposal is treated as final.

Location and building

  • Country, city and site address when known
  • Building use, height and number of levels
  • New build, retrofit or facade replacement
  • Coastal, industrial, seismic, typhoon or other declared exposure

Stage and programme

  • Concept, design development, tender or construction stage
  • Quotation deadline and approval milestone
  • Requested shipment or site delivery window
  • Partial release or phased installation dates

Quantity basis

  • Approximate net facade area
  • Gross elevation area when net take-off is not ready
  • Known panel count or schedule status
  • Separate quantities for soffits, returns, spares and mock-ups

Quotation status

  • Budgetary or tender quotation
  • Drawing revision and issue date
  • Accepted assumptions and open holds
  • Currency, trade basis and comparison deadline

Issue Drawings That Close the Facade Interfaces

An elevation shows the architectural rhythm, but it rarely defines every fabricated condition. The RFQ set should include current facade elevations, representative wall sections and enlarged details at the places where geometry or responsibility changes. The NYC Department of Buildings lists plans, elevations, schedules and details as essential construction-document information, with facade and parapet details and opening information called out explicitly. A supplier RFQ does not replace a permit submission, but it benefits from the same discipline: the scope must be readable at both building scale and junction scale.

For the wider architectural material decision, read sintered stone in architectural details before coordinating the project details.

At minimum, identify window heads, sills and jamb returns; external and internal corners; parapets and roof terminations; bases and ground contact zones; soffits and balcony edges; movement locations; transitions to glass, metal, render or another cladding; and any louvres, signage, canopies or penetrations that interrupt the panel field. Show which dimensions are verified, which come from design drawings and which require a site survey.

Architect and facade engineer reviewing elevation and junction drawings beside a panel sample
A coordinated RFQ set connects elevation intent with wall sections and junction details before fabrication scope is priced.

A quotation based only on one rendered elevation may price the visible square metres while leaving the highest-effort panels—returns, corners, soffits, openings and terminations—undefined.

If the panel grid is already developed, include the schedule and current marks. If it is not, send the elevations with preferred joint lines and target module sizes, then keep the layout explicitly preliminary. The deeper facade panel layout workflow explains how openings, corners, texture direction, cut yield and panel IDs are resolved before release.

Define the Panel and the Visual Approval Record

“Beige sintered stone” is not a material specification. Name the proposed product or visual direction, nominal thickness, finish, surface texture, target panel size range and any backing or frame concept included in the quotation basis. For a directional or veined surface, state the face orientation and whether 180-degree rotation is permitted. Identify bookmatched, continuous, intentionally random and visually quiet zones separately.

Appearance approvals work at more than one scale. A physical sample can confirm undertone, finish and tactile texture. Full-slab imagery or a face set shows pattern scale and direction. A panel layout connects that face information to the elevation. Batch or production-lot records connect the approved direction to the material actually released. When the facade is divided into multiple elevations or shipment phases, state whether one visual lot is required for the whole project or whether reviewed lots may be allocated by zone.

Light beige facade panels coordinated around a window opening and outside corner
Window heads, sills, jamb returns and outside corners create separate fabrication and interface conditions.

The specification should also say what constitutes approval: signed physical sample, approved full-slab image set, mock-up, connection sample, first assembled panel or another named record. Avoid one blanket phrase such as “sample approved” when different samples answer different questions.

State the Substrate, Fixing Direction and Performance Inputs

Describe the structural wall and the layers between it and the facing: reinforced concrete, masonry, steel framing or another substrate; insulation and membrane arrangement; cavity expectation; brackets, rails or other subframe direction; and the intended relationship between the sintered stone facing and any aluminium backing. If the substrate is unknown, say so. A fixing review based on an assumed concrete wall should not be mistaken for an accepted detail on lightweight framing.

The official ISO/TS 17870-3:2023 scope covers mechanical installation of large-format porcelain panels onto a supporting structure and discusses positive and negative wind factors, anchor pull-out or edge-fracture evaluation and impact zones. The EOTA assessment document for mechanically fixed external wall cladding kits likewise treats cladding elements, fixings, optional subframe, insulation and ancillary components as a coordinated assembly. Neither source supplies the design pressure or fixing spacing for a specific building. The RFQ should therefore state the project criteria or mark them as an engineering hold.

Fire language should follow the evidence for the exact submitted build-up, not a generic material label. Use the facade fire-document guide to request product classification, assembly-level evidence, scope, interfaces and project acceptance records.

Wall and interfaces

  • Structural wall type and available thickness
  • Existing condition or new construction
  • Insulation, membrane, cavity and barrier concept
  • Survey tolerances and adjustment requirement

Fixing direction

  • Mechanically fixed, dry-hung or other intended family
  • Visible or concealed facing connection
  • Back frame, brackets, rails and anchors in the quotation basis
  • Local supply interfaces and system components by others

Loads and exposure

  • Known positive and negative design pressures
  • Seismic, impact, maintenance or other declared loads
  • Corrosion and atmospheric exposure category
  • Responsible engineer and governing criteria

Required evidence

  • Product data and test reports at the stated scope
  • System, anchor or assembly evidence required by the project
  • Mock-up and testing programme
  • Document language, validity and submission stage

Wind loads can vary across faces, corners and edge zones, and strong wind often arrives with rain. The WBDG wind-safety guidance explains why exterior coverings must address positive and negative pressure, water entry and fastener durability. Ask the facade engineer for the controlling project pressures and zones rather than using building height as a substitute for a calculation.

Fire requirements should be written with equal care. The UK government’s Approved Document B FAQ notes that reaction-to-fire performance depends on the tested form, orientation, fixings and combination with other materials. For any market, request the project’s actual fire strategy and the evidence required for the complete wall build-up; a facing-material report is only one input.

For readers who need the physical connection path from panel to structure, the sintered stone facade installation article remains the detailed owner for anchors, clips, rails, brackets, cavity and field sequence.

Connect Every Panel ID From Elevation to Crate

A panel mark should identify one buildable item, not merely one rectangle on a drawing. Agree the numbering rule before fabrication and use the same reference on the elevation, panel schedule, fabrication drawing, QC record, label, packing list and installation location. If a revision changes handedness, texture direction, hole or groove geometry, fixing reference or interchangeability, the downstream record must make that change visible.

A readable code may include elevation, zone or level, panel type and sequence—for example, a west-elevation field panel and a right-hand window return should not share one mark. The syntax is project-specific. The control test is simple: can the receiving team find the correct crate and can the installer identify the final location without guessing from appearance?

Include these fields when they apply: panel ID; drawing revision; elevation, level, zone and grid; finished face dimensions; production blank; product, finish, thickness and lot; texture arrow or face number; handedness; edge, hole, groove and fixing-detail reference; backing/frame reference; QC status; crate ID; and installation sequence.

Make Packing and Delivery Follow the Project Zones

Delivery planning begins before the crate is closed. State the destination port, named delivery point, requested shipment date, container or truck restrictions, receiving hours, unloading method, site storage limit and whether the project will release material by elevation, level or construction phase. A facade packed only for factory convenience can arrive in an order that forces repeated searching and rehandling.

Map each crate to the panel schedule and decide whether panels needed first should be accessible first. Separate fragile special pieces, replacement stock, mock-up material and accessories where the receiving plan requires it. If one shipment contains two elevations with different approval status, the labels and documents should prevent them from being mixed.

Workshop team checking an aluminum-backed facade panel before zone-sequenced packing
Panel marks are most useful when the same reference continues through QC, the packing list, the crate and the installation zone.

The RFQ should ask for the packing list format, panel/crate map, protection method, loading evidence and shipment document set. It should also identify who supplies unloading equipment, who inspects on arrival and what photo or condition record is expected at each handover. These are commercial and evidence-chain decisions, not after-sales paperwork.

Write the Quotation Scope as a Responsibility Matrix

Two quotations are not comparable when one prices slabs and cutting while another includes backing frames, components, engineering support, mock-ups, packing and freight. Ask every bidder to classify each line as included, excluded, optional or by others, state the quantity or drawing basis and list deviations from the RFQ.

Scope line What the quotation should state Interface to assign
Sintered stone facing Product, thickness, finish, lot/visual basis and quantity Sample and production approval
Cutting and fabrication Finished sizes, edges, holes, grooves, tolerances and drawing basis Fabrication drawing release
Backing or panel assembly Included build-up, assembly stage and inspection record Connection to the facade system
Clips, rails, brackets and anchors Exact included components, quantities, finishes and spares Structural wall and components by others
Engineering and drawings Concept review, shop drawings, calculations, revisions and sign-off scope Final designer/engineer responsibility
Samples, mock-ups and testing Type, size, test scope, approval route, cost and timing Witnessing and acceptance party
Numbering, QC and documents Panel schedule, labels, inspection records and handover files Required format and revision control
Packing, freight and delivery Crates, zone sequence, trade basis, port/place, insurance and dates Destination handling, unloading and storage
Site installation and access Included, excluded or separately priced site work and supervision Scaffold/MEWP, survey, local labour and permits

For a mechanically fixed proposal, review the mechanically fixed facade coordination requirements and identify the components and approvals supplied by others.

After scope alignment, the sintered stone facade cost model helps buyers separate panel yield, fabrication, system components, engineering, packing, freight and installation instead of comparing only a slab rate.

Illustrative Project Brief: From Partial Drawings to a Usable RFQ

The following is a hypothetical scenario created to show how the checklist works. It is not a Funtek quotation, completed project, engineered design, tender return or code approval.

ILL-FACADE-SPEC-001 — Casablanca Mixed-Use Building

Location and building
Casablanca, Morocco; mixed-use; seven levels; approximately 28 m to parapet.
Stage and area
Design development; approximately 1,850 m² net cladding area measured from current elevations; tender issue planned after junction review.
Drawing set
Four elevations, two typical wall sections, window head/sill/jamb details, external corner, parapet, base and balcony-soffit details. Survey dimensions and one louvre interface remain TBC.
Panel direction
Preliminary 600 × 1,200 mm field module with smaller returns and closure pieces; final sizes subject to panelization, usable slab area and fixing review.
Appearance
Light beige 6 mm facing, low-sheen finish, restrained directional movement. Physical sample and full-slab face set required; rotation rules and production-lot allocation to be approved by elevation.
Wall and system
Reinforced-concrete frame with masonry infill; mechanically fixed ventilated facade with aluminium-backed panel assemblies as the quotation basis. Anchor/subframe design and verified substrate capacity remain with the responsible project engineer.
Performance
Positive/negative design pressures, corner zones, corrosion category, fire strategy and cavity-barrier requirements TBC by the facade consultant. Bidder to list evidence available for the proposed product and assembly scope.
Panel IDs
Elevation–level–type–sequence format proposed. IDs must match fabrication drawings, QC sheets, panel labels, crates and the installation location.
Delivery
Destination: Port of Casablanca; two releases—north/east elevations followed by south/west. Quote to separate packing, ocean freight, destination handling, unloading and site storage.
Quotation return
Classify slabs, fabrication, backing, components, drawings, calculations, mock-ups, testing, numbering, QC, packing, freight, installation and site supervision as included, excluded, optional or by others.

This brief is useful because it exposes the holds instead of hiding them. A supplier can price the defined material, fabrication and delivery basis while the facade consultant sees exactly which engineering and system decisions still prevent a final release. The next revision can close those holds without rewriting the entire enquiry.

Copy-and-Send Facade RFQ Checklist

  1. Project: country, city, site and building use
  2. Building: height, levels, new build/retrofit and exposure
  3. Stage: concept, tender or construction; quote deadline
  4. Area: net/gross basis, special zones, mock-up and spares
  5. Drawings: revision index, elevations, sections and panel schedule
  6. Details: openings, corners, parapets, bases, soffits and transitions
  7. Substrate: structural wall, build-up, survey and tolerances
  8. Panel: product/direction, thickness, target sizes and backing
  9. Appearance: finish, texture arrow, face set, batch and approval
  10. Fixing: intended family, components and local interfaces
  11. Performance: wind zones, seismic/impact, corrosion and fire
  12. Identity: panel-mark fields, drawing/QC/label/crate mapping
  13. Delivery: project zones, port/place, dates and unloading
  14. Scope: inclusions, exclusions, options, responsibilities and deviations

Attach the current files, identify the governing revision and write `TBC — responsible party — target date` beside every open item. That small discipline lets the first quotation remain useful without pretending the facade is already engineered.

Submit a Quote-Ready Facade Package

Use Funtek’s sintered stone exterior facade page to review the current 6 mm panel and dry-hang supply path, then send the available project information through the facade enquiry form. Preliminary elevations are enough to start when the assumptions and open holds are stated clearly.

For the first review, include the project location and height, approximate area, current drawing set, substrate, target panel and surface direction, known wind or performance criteria, panel/zone plan, destination port, delivery window and the responsibility matrix you want priced.

Send the Facade Brief for RFQ Review

Attach the current elevations, sections, junction details and panel schedule. Mark unknown engineering inputs as TBC and state the material, fabrication, component, packing and delivery scope you want Funtek to review.

LuCharlotte
LuCharlotte

Sintered Stone Specialist & Technical Advisor

About the author

LuCharlotte is a Sintered Stone Specialist & Technical Advisor at Funtek. She writes practical guidance for distributors, fabricators, architects, and project buyers on slab formats, surface finishes, fabrication requirements, applications, and order preparation. Her articles focus on the specifications and checks buyers should verify before selecting or ordering sintered stone.

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Sintered Stone Facade RFQ FAQs

01

What information is needed for a sintered stone facade quote?

Send the project location and height, current elevations and details, approximate area, substrate, target panel and finish, fixing direction, known performance criteria, delivery destination and the supply responsibilities you want priced.

02

Can I request a facade quote with preliminary drawings?

Yes. Preliminary elevations can support an initial review when the drawing revision, assumptions and open items are stated clearly; final fabrication and engineering release requires the applicable approved project information.

03

Must the wind load be calculated before the first RFQ?

A first budget request can mark wind criteria as TBC, but the responsible facade or structural engineer must provide the governing positive and negative design pressures and zones before the fixing layout and final system scope are released.

04

Who is responsible for final facade engineering?

Assign the responsibility in the contract and quotation. The supplier can price the agreed material, fabrication, components and technical-document scope, while project-specific structural design, code compliance and approval remain with the named qualified project professionals unless the contract explicitly states otherwise.