Heat rises. In an ordinary garden room, up to 35% of heat loss goes straight through the roof — usually because the roof is a stud-and-batten assembly with mineral wool packed between the joists, none of it airtight. In an Arden & Oak, the roof is a full insulated panel exactly like the walls: one continuous engineered element, insulated and airtight in one.
What that means in practice
- No thermal bridging at joists — the panel is continuous
- No cold spots at wall-to-roof junctions — the insulated timber-frame builds meet with an airtight spline
- Higher-performance summer comfort — the roof rejects solar gain more effectively than a mineral-wool roof
- The panel is structural — no additional joists or truss framework needed
Roof profiles we build
Every profile — flat, mono-pitch, dual-pitch, sedum green roof — sits on the same insulated timber-frame construction underneath. The visible finish (single-ply membrane, standing-seam metal, sedum planting, natural slate) is chosen for aesthetic and practical reasons; the thermal performance is set by the timber-frame beneath it.