Not having an insulated roof area will certaimly increase your annual heating costs due to excessive heat losses.

但没有保温层的屋顶会因为额外热量的流失，而增加每年的供热成本。

youdao

To ensure a comfortable interior climate the building envelope features insulated concrete form walls and a spray-foam insulated roof.

为了确保室内舒适的温度，该建筑采用隔热混凝土墙和喷涂泡沫隔热屋顶。

youdao

The walls, roof and floor are fabricated from rigid foam insulation sandwiched between two sheets of steel known as Structural Insulated Panel (SIP).

墙壁、屋顶和地板是由刚性泡沫保温材料制成，夹在两片钢片之间，称为隔热板结构。

youdao

Thanks to its heavily insulated roof and double-glazed, low-emissivity glass throughout, Mayhem Manor's electricity consumption is a modest 8, 300 kilowatt-hours a year.

ECONOMIST: The much-talked-of smart grid prepares to enter the home

Your roof, walls and floors are insulated twice as well as they were two decades ago.

FORBES: Insights: The energy diet that flopped

Embedding the structural support in the core made it possible to cantilever the roof and thus wrap a glass facade around the building, using vast expanses of insulated, triple-pane glass and mahogany mullions.

WSJ: The Greening of a Midcentury Classic