Waste Factor For Tile Roof

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Waste factor for tile roof.

The waste is 4295 92 95 divisor 4522 02. The amount of expected waste depends on the style and quality of the roof tile and on. If the roof has a 10 12 pitch then the equation is 2 864 x 1 3 3 723 x 1 05 3 909 square feet of roofing material. 39 squares of tiles should do the job.

Add the waste factor to the original total square feet. That s because it is the smaller cut up hip roofs that can often have the highest waste percentage. Waste factor in estimating. Let s compare two roofs that will have metal tiles installed both with identical roof areas 146sqm.

Waste factors simple roofs gable 1 5 complex roofs 5 10 measure height from the bottom of the roofline to the ridge board. In the waste list select auto calculate. This is how many square feet of tile you need to completely cover the floor allowing for breakage of the tiles and cuts around the perimeter. Add a roof to the sketch and add an applicable roofing item to the estimate.

This will be automatically selected if you set auto calculate as the default in preferences. In some cases you may be able to work with the installer and the manufacturer to get an extended warranty from the manufacturer. It could be the difference between winning and losing the bid. A 7 5 variance of waste on a 30 square roof would be 2 33 squares.

If you do not want to add for waste then enter 100 as the divisor. The 3977 70 is the total of your actual roof measurements. The sub total is 3977 70 x 1 08 4295 92 pitch has been added for 5 12 pitch. With a hip roof you will need to add another 10 to the total number of squares for materials to account for additional waste associated with hip roofs.

The average waste factor for clay roof tiles is between 10 and 15 percent although this number may be higher. The way building products usually work is you will receive a product warranty from the manufacturer and a workmanship warranty from the installer. If you think a standard waste factor will help you save time let s look at an example to illustrate the point.