Not having enough of these protective substances can cause stones. Changes in the Acidity of the Urine. Changes in the acid balance of the urine can affect stone formation. 1  Uric acid and cystine stones mainly form in acidic urine.
1 For an average sized 1,500 square foot roof, that works out to a total PVC roofing cost of $6,000 to $18,000. 2  While certain types of PVC roofing material can be installed over the existing roof, the old roof may need to be removed and disposed of at an additional cost of $1.00 to $2.00 per square foot. While certain types of PVC roofing material can be installed over the existing roof, the old roof may need to be removed and disposed of at an additional cost of $1.00 to $2.00 per square foot.
How Much Does it Cost? Youâll need to consider a few factors in order to determine the cost for a standing seam metal roof, including the following. Materials: The average cost of standing seam metal roofing is $4.00 to $6.50 per square foot. Call several suppliers in your area to get an idea of the cost of the material youâre interested in. Installation: Most residential standing seam roofs are field-locked systems, which require a special seam locking tool and an experienced professional.