Performance checklist
Window Quote Checklist: Match the Performance Rating to the Product
Prepare an aluminum window or door quote with an editable opening schedule, labeled dimensions and configuration-specific performance documents.
Short answer
A useful window quote identifies the actual system, operation, glazing, dimensions, and documentation behind its performance claims. Do not compare a whole-window rating on one quote with a glass-only figure on another.
Start with a product identity
Create one line for each opening, with an opening ID that matches the plans. List the operating style, frame system, quoted size, finish, glass package, screen, hardware, and quantity. Ask the supplier to distinguish the ordered unit size from the rough opening so those dimensions are not accidentally treated as interchangeable.
A quote described only as premium aluminum windows is difficult to compare. Two similar-looking elevations can contain different operating units, glazing, hardware, and installation requirements.
Label the dimensions before comparing totals
Record what each width and height describes: a rough opening, an existing frame, a proposed unit or the ordered unit. Include the units and identify who measured it, the drawing revision and whether it still needs site verification. These dimensions are not interchangeable.
Do not subtract a standard allowance from every opening. The selected system and installation detail determine the coordinated opening and ordered size. Ask the project team to resolve that relationship before approving an order.
- Opening ID matching the drawing
- Quantity and desired operation
- Width, height, units and measurement basis
- Interior/exterior view and opening direction
- Drawing revision and verification status
Read the ratings in context
NFRC explains that U-factor describes heat transfer performance, SHGC describes solar heat gain, visible transmittance describes daylight transmission, and air leakage describes air movement through the product. These values answer different questions; a favorable figure in one category does not replace the others.
Use the NFRC label and certification records where applicable, and ask which configuration the supplied documentation represents. Do not transfer a rating from one sample or product family to a different quoted unit without support.
Build a document checklist
For each claimed value, record the document title, the applicable product identification, and the configuration it covers. Mark anything that is still awaiting confirmation. The purpose is a traceable purchase decision, not a collection of brochures with impressive numbers.
- Opening ID and quoted unit dimensions
- Frame system and operation
- Glass package and spacer information
- Applicable whole-unit energy ratings
- Air, water, and structural documentation required for the project
- Installation details and responsibility
- Written warranty and service contact
Track requested documents and open decisions
For each opening, distinguish a document requested from a document received and a configuration confirmed by the project team. A brochure arriving in your inbox does not settle whether it applies to the quoted size, operator, glass and installation basis.
Use a simple record: opening ID; proposed system; document or directory reference; what it covers; who will check it; and the unresolved question. Record energy, air/water/structural, impact or other project criteria separately instead of treating one value as approval of every requirement.
Keep product performance and installation separate
A product report does not design the surrounding wall. Ask the project team to coordinate the opening, attachment, flashing, drainage, and interior finishes with the selected system. Record who will supply the installation details and who will verify them before ordering.
For a BelleVier project review, send the opening schedule or plans together with any required performance criteria. We can organize the product questions around those openings. Values shown as examples elsewhere on the site should not be treated as universal ratings for every package.
Use an opening schedule for the initial review
Download the blank CSV opening schedule linked below and add one row per opening. It opens in common spreadsheet apps. Start with the facts you have and mark the rest as undecided; approximate planning dimensions should be labeled as approximate.
Send the schedule or plans through the contact route shown on the quote page, or paste the key opening details into the project message. The schedule is a planning aid, not an order, installation instruction or certification record. Confirm final dimensions, product configuration, documents and responsibilities before ordering.
Sources and documentation
Direct answers
Frequently asked questions
Is a glass-only U-factor the same as a window U-factor?
No. Ask which parts of the assembly and which configuration the quoted value describes before comparing it with another product.
Does a low U-factor confirm impact approval?
No. Energy performance and impact approval are different claims with different supporting documentation.
Should the best brochure rating go on every opening?
No. Record the applicable documentation for the proposed configuration and identify values that still need confirmation.
Can I use rough-opening dimensions as the ordered unit size?
Not automatically. Label the measurement basis, then confirm the ordered unit and coordinated rough opening against the selected system and installation detail before ordering.
What if I do not have final drawings yet?
Send the early plans, photos or opening list you have. Mark approximate dimensions and undecided operation, glass or finish choices so the initial review can identify what still needs confirmation.