Disadvantages: fragile, poor insulation and portability, expensive, difficult to powder bone content and quality assurance and identification.

缺点：易碎，隔热性和便携性较差，价格贵，粉骨含量和品质很难保证和鉴别。

youdao

High electricity bills point to a poor heating system or bad insulation.

高额的电费账单表明供暖系统较差或者是隔热材料不好。

《柯林斯英汉双解大词典》

Plaster line itself is not waterproof, rain and sun will encounter weathering, low intensity, poor weather, can not be used in the outdoors, and the accuracy is poor, there is no insulation function.

石膏线条本身就不防水，遇到雨水和阳光就会风化，强度低，耐候性差，不能在室外运用，并且精确度差，没有保温功用。

youdao

The big question for ministers is this - how can they enforce better standards on new homes and how can they fix the poor insulation standards and heat loss from existing homes?

BBC: The ?1,000-a-year heating bill is here.