Double Glazing for Architects & Designers
Double Glazing That Works From Your Drawings
Architects and designers bring glazing into a project much earlier than a homeowner does. The spec affects thermal modelling, NCC compliance, facade composition and structural coordination, so the earlier Penot is involved, the more useful we can be. We supply double glazed windows and doors to Perth design practices, work directly from drawings, and provide written specification support from design development through to construction documentation. For practices sourcing double glazing across Perth, we are set up to handle the pace and detail that design work demands.
Specification Support From Design to Documentation
Early Involvement, Fewer Surprises on Site
Most glazing suppliers quote from a finished opening. We prefer to get involved before documentation is locked, where we can help with performance targets, sightline selection and glass specification rather than just pricing a completed brief. Send us drawings at any stage and we will return written notes you can use directly in your documentation set. We also work alongside builders and developers on the same projects, so there is a consistent supplier contact from design through to practical completion.
We can review drawings from design development through to construction documentation stage. We flag anything that affects fabrication, confirm what is achievable in the system, and return specification notes with performance values and frame profile details.
A broad powder-coat colour range is available, including custom matches for projects with a controlled palette. Timber-look and anodised finishes are also available. Physical samples are supplied on request for material boards or client presentations. See the full range of styles and finishes.
Low-e, solar-control, laminated acoustic and BAL-29-rated glazing are available within the standard double glazed unit range. We can help you select the right combination for NatHERS modelling targets and NCC Section J or NCC Volume Two glazing requirements.
Where a project requires slim sight lines or a specific frame profile to hold the facade composition, we confirm what is achievable in fabrication and provide section references if needed for your documentation.
Why Perth Practices Work With Penot
A Supplier That Can Read Your Drawings
Perth design practices working on high-performance or architecturally detailed residential projects use Penot because we can engage with a set of drawings and respond in kind. Specification queries, U-value and SHGC data, and sample requests are handled by the same team that manages supply and installation. There is no handoff between a design-stage sales contact and a separate trade team. The same people who discuss glass options with your practice are the ones who manage fabrication, delivery and installation on site.
For new build projects in particular, getting the glazing specification right at design stage removes the risk of substitutions during construction that compromise the thermal or acoustic performance the design was modelled on.









NCC, NatHERS and Glazing Performance
Performance Data You Can Put in Your Documentation
NCC compliance for glazing is not straightforward. Elemental provisions, NatHERS modelling and DTS pathways all treat glazing differently, and the performance values that matter (U-value, SHGC, visible light transmittance) depend on the specific unit configuration, not just the glass type. We provide written performance data for the units we supply, formatted so your energy assessor or certifier can use it without chasing us for clarification.
For projects targeting above-code performance, we work through the glass options methodically: which combination of low-e coating, gap width and gas fill will reach the target U-value, whether solar control is needed on a given facade based on orientation, and where laminated acoustic glass is worth the cost versus standard laminated. We also supply for BAL-29 rated applications where the project is in a bushfire-prone area. The window and door range covers the configurations most commonly needed across Perth residential work.
