as to thermal performance

[Zhumabai]

1) maximum transmissivity of .40W/m2.°C- максимальный удельный коэффициент пропускания равен...........? (контекст следующий " The thermal insulating properties of the exterior walls for the buildings have been limited to a maximum transmissivity of .40 W/m2.°C "

2) order magnitude of 60°C - разность величин ? (контекст следующий "In most buildings the roof and wall cladding system is relied upon to absorb the energy difference between the inside and outside. This is particularly applicable to the buildings for this plant where the temperature range is in the order magnitude of 60°C ")

Yours sincerely

[plastilin]

1) коэффициэнт теплопроводности
2) порядка...

[10-4]

1) maximum transmissivity of 0.40 W/m2.°C - Максимальная теплопроводность (это не коэффициент)
2) the temperature range is in the order magnitude of 60°C - Температурный диапазон порядка 60 град.