noun, noun which may take the genitive case particle 'no'
fireproof; fire-resistant
Describes materials, structures, or equipment designed to withstand fire. Often used in compounds like 耐火構造 (fireproof construction) or 耐火金庫 (fireproof safe).
この建物は耐火構造になっている。
This building has a fireproof structure.
They used a special coating to make the wall fireproof.
I keep important documents in a fireproof safe.
This door is made from a highly fire-resistant material.
They apply a fireproofing treatment to the wood before using it.
不燃 (noncombustible) means a material does not burn at all, whereas 耐火 implies resistance to fire for a certain period, even if the material may eventually degrade.
可燃 describes materials that burn easily, the opposite of 耐火, which describes materials that resist fire.
耐熱 means heat-resistant (able to withstand high temperatures generally), while 耐火 specifically means resistant to fire damage.
防火 refers to systems and practices for preventing fires, whereas 耐火 describes a material's property of resisting heat and flame.
fire resistance; fire resistant
fire resistance
refractory; heat-resistant material
fireproof building; fire-resistant construction
firebrick
Compound of 耐 (endure, withstand) and 火 (fire). The reading たいか is the on'yomi of both characters.