One question per page, answered in the first paragraph. These are the questions that decide a window package — schedule, energy compliance, hurricane approvals, documentation — and each answer is built from the same data the product pages publish, so it cannot drift away from them.
9–10 weeks total, fully door-to-door: production, ocean freight, customs clearance, duties and final delivery to your jobsite are all included in that one figure — not a production-only estimate with the rest left for you to arrange.
Full answer →ENERGY STAR's residential window thresholds are a U-factor of 0.22 or lower in the Northern zone, 0.25 or lower in North-Central, 0.28 or lower in South-Central and 0.32 or lower in the Southern zone, in Btu/h·ft²·°F. Air leakage must be 0.3 cfm/ft² or lower in every zone. Your local energy code may be stricter.
Full answer →A thermal break splits an aluminum frame into separate inner and outer sections joined by a rigid polyamide strut, so heat cannot conduct straight through the wall. It matters: aluminum conducts heat around a thousand times better than the insulating glass it holds, and an unbroken frame runs cold enough to condense indoor air.
Full answer →Specify tilt and turn where the outside is tight — walkways, balconies, narrow setbacks — or above the ground floor, where turning the sash inward lets you clean the outer face from the room. Specify casement where blinds, shutters, seats or worktops occupy the reveal, or where a crank is what US owners expect.
Full answer →It tells you the whole product — frame and glass together — was measured by an accredited laboratory under one standard procedure, and that the result is published in the NFRC Certified Products Directory under a CPD number. It is not a centre-of-glass figure, and it is not an ENERGY STAR award.
Full answer →Yes. Our impact line is tested under TAS 201, TAS 202 and TAS 203 per the Florida Building Code 8th edition (2023) at Zone 4 missile level D, and our systems carry six active Miami-Dade County NOAs, all Large and Small Missile Impact, at design pressures from +60/−60 to +115/−115 PSF. Both also hold Florida DBPR statewide Product Approvals covering a wider product range. A NOA is issued per series and configuration, so we confirm in writing which number covers your exact unit and address before you specify it.
Full answer →Ask for the NFRC CPD number for every rated unit, the whole-window U-factor and SHGC behind it, shop drawings and a CAD schedule at quotation, the impact test protocols where relevant, the written warranty with its exclusions, and a packing list keyed to the unit ID tags. Anything missing is a question.
Full answer →Yes. Multi-unit combinations are joined in the factory and delivered as a single assembly, so a wide opening arrives complete rather than as parts to align on site. The joining mullion is 1 1/8 inches (28 mm) at every height grade up to 13 feet; only the internal reinforcement changes.
Full answer →Still the wrong question for your project?
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