Think in systems, not just insulation thickness
Walls, roof, floor, windows, doors and junctions all influence heat loss. A well-insulated wall cannot compensate for poor glazing, draughty door installation or weak detailing where different parts of the building meet.
That is why Goldridge talks about the construction as a whole. The current wall approach uses SIPs, while the floor uses a traditional timber joist build-up, with the wider specification adapted to the room and site.
Glazing changes comfort in both directions
Large areas of glass can make a room feel bright and connected to the garden, but they also influence winter heat loss and summer solar gain. Orientation matters. South and west-facing glazing can behave very differently from a shaded north-facing elevation.
The goal is not simply to maximise glass. It is to put it where it improves the room and then make sensible choices about heating, shading and ventilation.
Heating and summer comfort
A year-round room needs a controllable heat source for colder periods. Depending on the brief, customers may also want cooling or better air movement for warmer weather, especially in gyms and heavily glazed spaces.
The right choice depends on how often the room is used, its size, glazing and internal heat loads. A cinema full of people and equipment behaves differently from a single-person office.
What to ask a garden room company
Ask how the walls, roof and floor are constructed, how doors and windows are installed, how air leakage is controlled and what heating strategy is expected. You should be able to understand the complete build-up rather than being shown one product brochure.