Steady rooms
Less heat gained in summer and lost in winter through every opening.
Windows and doors
The weakest point in any envelope.
Windows and doors have an outsized effect on comfort and energy use. Double glazed, thermally broken units cut heat transfer through the glass and frame and block far more sound than single glazed ones.
That is why double glazing and thermal breaks are a non negotiable minimum on every Avern project.
Frame material matters as much as the glass. Most Sydney projects default to aluminium, which conducts heat: frames run cold in winter and hot in summer and bridge heat around every opening. Avern pushes for uPVC or timber frames, which keep frame surfaces stable and cut condensation.
The difference
What better glazing and frames give you.
Quieter inside
Double glazing gives far better sound attenuation than single glass.
Less condensation
Frames that stay near room temperature resist condensation.
Lower running costs
Less work for heating and cooling over the life of the home.
More of the Avern standard
The rest of the envelope.
A sealed, breathable envelope
Every external wall and roof plane is wrapped in a Proclima membrane, every join, lap, penetration and window reveal taped into one continuous air and weather barrier.
Learn moreConcrete subfloors, not particleboard
Where a home is not on a slab we lay AlphaFloor 35 mm precast concrete panels. Rain on site cannot swell them, and they add thermal mass and quiet.
Learn moreStraight LVL wall framing
LVL replaces standard MGP pine in every wall frame. It stays straight and plumb, so the membrane and insulation stay continuous.
Learn moreA frame with an insulating break between its inside and outside faces, so heat does not conduct straight through it.
Aluminium conducts heat very efficiently, so frames run cold in winter and hot in summer and create thermal bridges around every opening. uPVC and timber conduct far less.
Yes. Double glazed, thermally broken windows and doors are the minimum on every Avern project.
Yes, as part of alterations and additions. We will advise on what suits the home at the consultation.
Start your project
Talk to us about building to this standard.
Tell us about your site and plans. Whether it is a new home, a duplex or an addition, we will talk you through how we would build it.