Knowledge centre
Straight answers from the factory floor.
Guides written and reviewed by our façade engineers, certification and export team — with the numbers, standards and trade-offs you need to specify, import and install aluminium windows and doors.
Installation7 min read
Window Installation Waterproofing: Sealing the Wall Joint
How to waterproof the window-to-wall joint: RAL three-plane sealing, membranes, sill pans, foam vs compriband tapes, fixing spacing and AAMA 502 field testing.
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Certification7 min read
Qualicoat Classes Explained: Class 1, 2, 3 and Seaside Coatings
Qualicoat Class 1, 2 and 3 powders and the Seaside label: pre-treatment, film thickness, Florida exposure, salt spray, AAMA 2603/2604/2605 and warranties.
By Sophie LaurentRead the guide
Comparisons7 min read
Double vs Triple Glazing: Ug Values, Weight, Cost and Climate Guide
Double vs triple glazing compared: Ug values, glass weight, cost, Low-E, argon, warm-edge spacers, acoustic laminated glass and a climate recommendation table.
By Chen YutingRead the guide
Installation8 min read
Installing Lift and Slide Doors: Sequence, Tolerances, Checks
How to install lift and slide doors: opening tolerances, recessed vs surface track, sill pan drainage, fixings, levelling to ±1 mm, heavy glazing and handover.
By Zhang HaoRead the guide
Comparisons8 min read
Powder Coating vs Anodising vs PVDF: Aluminium Window Finishes
Powder coating vs anodising vs PVDF for aluminium windows: durability, coastal use, colour range, repair, Qualicoat classes vs AAMA 2603/2604/2605, and cost.
By Chen YutingRead the guide
Certification7 min read
U-Value and SHGC Explained: Uw, Ug, U-Factor and g-Value for Windows
U-value vs U-factor, Uw/Uf/Ug and psi, SHGC vs g-value, how window size changes Uw, typical code limits by region, and how to compare window quotes fairly.
By Sophie LaurentRead the guide
Importing7 min read
Incoterms 2020 for Windows and Building Products Compared
Incoterms 2020 for imported windows: EXW, FCA, FOB, CFR, CIF, DAP and DDP compared — costs, risk transfer, ICC A vs C insurance, DDP pitfalls and L/C rules.
By Marco ÁlvarezRead the guide
Comparisons8 min read
Lift and Slide vs Bifold Doors: Opening Width, Weather Rating, Cost
Lift and slide vs bifold doors compared: clear opening width, panel sizes, wind and water ratings, thresholds, maintenance and cost per m², with decision rules.
By Chen YutingRead the guide
Certification8 min read
AS 2047 Wind Ratings Explained: N1–N6, C1–C4, WERS and BAL
How AS 2047 rates windows in Australia: N1–N6 and C1–C4 wind classes, test pressures, AS 4420 test sequence, AS 1288 glass, WERS stars and AS 3959 BAL levels.
By Sophie LaurentRead the guide
Importing8 min read
How to Audit a Window Factory in China: Checklist and Red Flags
Verify a Chinese window manufacturer vs a trading company: licence scope, extrusion and coating lines, traceable test reports, audit checklist and AQL.
By Marco ÁlvarezRead the guide
Certification7 min read
NFRC and NAFS Ratings Explained: U-Factor, SHGC and Design Pressure
NFRC 100/200/500 ratings, NFRC labels, NAFS performance class and grade (R, LC, CW, AW), ENERGY STAR zones and CSA A440S1: what US and Canadian permits need.
By Sophie LaurentRead the guide
Importing7 min read
Landed Cost of Imported Windows: How to Calculate It
Calculate the landed cost of imported aluminium windows: FOB price, freight per m², insurance, duty, anti-dumping risk, VAT/GST, brokerage and installation.
By Marco ÁlvarezRead the guide
Comparisons8 min read
Thermal Break Aluminium Explained: PA66 Strips, Uf and Condensation
What a thermal break in aluminium windows is, polyamide strips vs pour-and-debridge, Uf values with and without, condensation risk, and when you can skip it.
By Chen YutingRead the guide
Comparisons8 min read
Aluminium vs uPVC Windows: Strength, U-Values, Lifespan and Cost
Aluminium vs uPVC windows compared on stiffness, Uf values, lifespan, cost and recycling — with a decision table showing when uPVC is the better choice.
By Chen YutingRead the guide
Certification8 min read
CE Marking for Windows: EN 14351-1, DoP and AVCP Explained
How CE marking works for windows and external doors: EN 14351-1, AVCP system 3, notified-lab type testing, FPC, air/water/wind classes and how to read a DoP.
By Sophie LaurentRead the guide
Importing7 min read
Importing Windows from China: A Step-by-Step Guide for Buyers
How to import aluminium windows and doors from China: specification, supplier vetting, samples, shop drawings, payment, inspection, shipping and customs.
By Marco ÁlvarezRead the guide
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