Some are even made with flexible materials and have ultraviolet rays, crack, and weather resistant. Most of the metal pipe jack has an aluminum base on the upper part that can prevent corrosion from forming in the upper lip. This metal pipe jack for the roof is more stable than the other materials. If squirrel armies surround your home area, you may not want to install this pipe jack on your roof. This material is popular, but it slightly costs you more money, and the squirrels love to chew the boot, which will later cause a hole and leak. It also provides you with trustworthy security when it comes to watertight roof authentication. This material will survive the majority of asphalt roofing products. Lead pipe jack has been used for decades and proved its durability against the weather and time. Materials for Roof Pipe Vent Lead for Roof Pipe Vent