Alta Products

The Sigrist Pipe Chase Housings & Curbs® and Sigrist Exit Seals® offer a reliable means of ensuring secure roof penetration for harsh weather. Since 2006, we've installed over 2,000 Sigrist Pipe Chase Housings in the most challenging weather conditions in the US without any warranty claims, and the same goes for our Sigrist Exit Seal®, with over 50,000 installations and no replacement requests.