Start with the project
Record the project location, building use, opening sizes and exposure conditions. A coastal residence and an inland office can require different hardware, finishes and drainage details.
Compare the complete assembly
Compare profile material, reinforcement, glazing thickness, seals, hardware and opening method together. The uPVC 65, 72, 82 and 90 families and aluminum 65, 75 and 90 families provide different starting configurations. A larger series number alone does not establish a better result.
Read thermal values carefully
Uf describes the frame, Ug the glazing and Uw the complete window. Compare values with the same units and matching test conditions. Ask for a report identifying the exact proposed configuration.
Prepare a useful inquiry
Include your window schedule, dimensions, opening directions, glazing preferences, finish and installation deadline. State any acoustic, thermal or fire requirement explicitly so the team can assess the relevant documentation.
Prepared by the JoyHaus product team from supplied product literature. Technical requirements should be checked against current model-specific documents and local project requirements.