LP Building Products Share: Building Materials & Product Supplies LP Building Products Visit Website 4401 Manayunk Ave Apt 1 Philadelphia, PA 19128 (615) 804-2861 About Map About LP Building Products:LP SmartSide - Premier siding product backed by a 50 year warrantyLP FlameBlock - Structural fire-rated sheathing to meet codeLP Legacy - Top of the line OSB Sub-Flooring What's Nearby? Distance: 5 10 15 20 25 50 mi.