Steel entry doors have been popular for decades now and the reasons are quite evident. They are preferred for both domestic as well as commercial construction. But now they have garnered increased acceptance because they are pretty much durable and do not warp when exposed to extreme weather conditions. They are sturdy and offer great security. But there are still many questions that homeowners tend to ask. Here are these questions answered. Are the steel doors energy efficient? These doors have proven to be extremely energy efficient. They have proven themselves to be tough insulators and work best when combined with tight-fitting frames. They allow less air to pass through them as compared to wood or other materials like vinyl, or aluminium. These entry doors can be upgraded with t
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