Estimating Guide
The Peak of Protection
Material estimating guide for Future Roof Mediterranean Tile metal roofing — coverage, accessories, and takeoff data for contractors and estimators.
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It walks estimators and contractors through a material takeoff for a Mediterranean Tile roof, using a worked example to determine how many five-step and two-step tile panels, plus hip/ridge and other trims, are needed including waste. It explains the panel coverage table, how to block off the roof, and how to convert panel counts into squares to place an order.
Most of the roof is covered with five-step panels, while two-step panels are provided for hips, valleys and at the ridge to keep waste to a minimum. The coverage table relates rafter length to panel counts — for example, one five-step panel covers 6'3" and one two-step covers 2'6" vertically. For ordering, five-step panels figure at 10.7 pieces per square and two-step at 26.7 pieces per square.
You measure each roof block, divide the width by 1.5 (18") and round up to get horizontal panels, then use the rafter length with the coverage table to get vertical five-step and two-step counts, and multiply. The worked example totals 216 five-step panels (20.19 squares) and 225 two-step panels including waste (8.43 squares), for 28.62 total squares of Mediterranean Tile.
Waste is driven by hips and valleys: add together the linear feet of all hips and valleys and multiply by 0.9 to get the number of waste two-step panels. In the example, 72 linear feet of hips and valleys times 0.9 yields about 65 two-step waste tiles, which are added to the field panel count before ordering.
Yes — it shows how to estimate hip and ridge trim by measuring the linear feet of hips and ridge and dividing by the trim coverage (3.75'), then adding 10%. In the example, 151 linear feet divided by 3.75 plus 10% comes to about 45 pieces. The guide is intended as a takeoff aid; final quantities should be verified against the actual roof and the installation manual.
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Five and Two Step Tile Panel Coverage Table Rafter Length Five Step Panels Two Step Panel One Panel 6 ft. 3” One Panel 2 ft. 6” Two Panels 12 ft. 6” Two Panels 5 ft. Three Panels 18 ft. 9” Four Panels 25ft. Five Panels 31ft. 3” The majority of the roof will be done using five step panels, two step panels are provided for hips, valleys and at the ridge to keep the waste at a minimum. 1) Begin by blocking off the roof as in our example. 2) Measure the width of the roof and divide by 1.5 (18”) **Note: Round up to the next full tile. This will give you the number of tiles horizontally. 3) Measure the rafter length using the table above, deter- mine the number of five step and two step panels needed vertically to the ridge. 4) Multiply the number of five step vertical panels by the number of horizontal panels to learn the total number of five step panels. Repeat the same proce- dure to determine the total number of two step panels of the roof within the block. **Note: If the rafter and length of the roof are the same on the other side within the block, multiply by 2. If not, repeat the above procedure. 5) Repeat the procedure until all blocks have been measured. 6) Add together the linear feet of all hips and valleys. Multiply the linear feet by .9 this will give you the number of waste “two step” panels. 7) All that remains is to add the number of five step panels in each block, and the number of two step panels, plus the number of waste two step tiles. This will give you the total number of tile panels needed including waste. Estimating the above diagram using the Future Roof Mediterranean tile panels: Box (A) 1) The rafter length 16 ft., the above chart indicates that two” five step” panels will allow us to go 12 ft. 6” vertically. Leaving us with 3 ft. 6”. Checking the above chart we find that two “two step” panels will be needed. 2) The width is 60 ft. divided 1.5 (18 “) = 40 horizontal tile panels. 3) 2 (five step) X 40= 80 X 2 (both sides are the same) = 160 “five step” tile panels. 4) 2 (two step)X 40= 80 X 2 (both sides are the same) = 160 “two step” tile panels. Box (B) 1) The rafter length 12 ft., the above chart indicates that two “five step” tile panels are needed vertically. 2) No “two step” tile panels are needed. 3) The width is 20 ft. divided 1.5= 13.3 round up to 14 tile panels wide. 4) 2 (five step) X 14 = 28 X 2 (both sides are the same) = 56 “five step” tile panels. Waste: Linear feet of Hips and Valley’s = 72 X .9 = 64.8 or 65 “two step” tile panels of waste. Add Box (A) & (B): (A) 160+ (B) 56 = 216 “five-step” tile panels. At 10.7 pcs. per square =20.19 squares (A) 160 “two step” tile panels, plus 65 tiles waste = 225 “two step” tile panels. At 26.7 pcs. per square = 8.43 squares Total Squares of Mediterranean Tile 28.62 sqs. Order 216 “five step” tile panels. 225 “two step” tile panels. Estimating hip and ridge trim pieces: Measure the linear feet of Hips, and Ridge. 151 linear ft. Divide by 3.75 = 40.27 plus 10% = 44.74 or 45 pcs. of “Hip and Ridge Trim“. ESTIMATING MEDITERRANEAN TILES SHORT FORM ESTIMATING FOR MEDITERRANEAN TILE. Quick method for Salesman: 1) Determine the square footage without waste. (2400 s/ft.) 2) Add the linear feet of hips and valleys and multiply by 2. (144 s/ft.) 3) Add totals of #1 and #2. (2544 s/ft.) 4) Now multiply the total by 1.15, this yields the square footage including waste. (2,926 s/ft.) 5) Divide the square footage by 100 showing that 29.26 sqs. of Mediterranean Tile panels are needed.