Cementitious roofing and siding

Claim 1

IN THE PROCESS OF MAKING A LIGHTWEIGHT, FREPROOF AND WATERPROOF CONSTRUCTION SLAB, HTE STEPS THAT INCLUDE: A. COMBINING PORTLAND CEMENT, PERILTE, GLASS FIBER, CELLULOSE PULP, A SUB-MIX AND WATER TO FORM AN AQUEOUS ADMIXTURE, AND B. FORMING THE CURING THE SLAB FROM SAID ADMIXTURE, SAID FORMING INCLUDING SUBJECTING THE FORMED SLAB TO PRESSURIZATION TO SQUEEZE WATER THEREFROM, C. SAID SUB-MIX HAVING BEEN PARELIMINARILY PREPARED BY COMBINING QUICK LIME AND WATER TO FORM A MIX REACTING EXOTHERMICALLY, AND ADDING FATTY MATERIAL TO THE REACTING MIX, AND IN THE RELATIVE AMOUNTS BETWEEN 45 AND 55 POUNDS OF QUICK LIME BETWEEN 25 AND 30 GALLONS OF WATER BETWEEN 1.5 AND 2.5 GALLONS OF FATTY MATERIAL D. THE CONSTITUENTS OF THE ADMIXTURE BEING PRESENT IN THE RELATIVE AMOUNT: BETWEEN ABOUT 180 AND 195 POUNDS OF CEMENT BETWEEN ABOUT 72 AND 90 POUNDS OF PERLITE BETWEEN ABOUT 38 AND 46 GALLONS OF AQUEOUS CELLULOSE PULP CONTAINING SAID GLASS FIBER, AND BETWEEN ABOUT 7 AND 9 GALLONS OF SAID SUB-MIX E. THE PULP AND GLASS FIBER BEING PRESENT IN THE RELATIVE AMOUNTS: BETWEEN 40 AND 48 POUNDS OF CELLULOSE BETWEEN AND 4 POUNDS OF GLASS FIBER.