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Types of Roofing - Configuration Calulations

Roof Calculation - Roofing Squares on your house:

  

A roofing square is equal to 100 square feet.

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Reinke Shake LT's 
The World's Finest Metal Shingles !

Roof Quantity Calculation for Reinke Shakes

  

For conventional homes:

   

1.  Looking down on your house, separate it into rectangular sections.

2.  Determine the length and width of each section ( include the distance the roof overhangs the outer wall ).

3.  Multiply the length and width of all the rectangles.

4.  Add the multiplied areas together.     This would be the roof area if you had a flat roof.

5.  Multiply the area by the slope factor ( chart below ).

6.  Divide the final number by 100 ( example, 2050 would take 20.5 squares ).

7.  Another way is to take the extreme length and extreme width of your house ( with the overhang ) and subtract all the areas where the house notches in.

 

Slope Factors:    Slope is how much higher the roof is at 12" closer to the peak.

  

2 in 12   1.014                                 5 in 12   1.083                              8 in 12    1.202

3 in 12   1.031                                 6 in 12   1.118                            10 in 12   1.302

4 in 12   1.054                                 7 in 12   1.157                            12 in 12   1.414

 

Ridge and Hips take 1 square of Reinke Shakes LT shingles for every 96 feet of length.

 

Geodesic Domes:

   

A close estimate is 'Diameter' X 'Diameter' X .015 equals the number of squares. 

For extensions on the dome, use the conventional home formula above and add it to the dome number.

( example,  45 foot dome:  45 x 45 x .015 = 30.375  Therefore approx. 30 1/2 squares ).

Domes are interesting to roof.  We have seen a dozen different ways to install Reinke Shakes on a dome, that were successful.

 

Some roofers flash with a zee shape they bend and put between every triangle edge.

 

Some roofers just run the upper triangle shingles down over the lower one, leave it stick over randomly, and then trim with a circular saw so it sticks over about 1/2 inch.

 

Some roofers treat every seam like a roof ridge.

 

We suggest that you study all the dome photos on our website and see what you and the roofer are comfortable with.

 

We are hesitant to suggest a process and list of materials, because what we think you need, and what the roofer thinks you need, could be very different.

 

Waste:

  

A very frugal roofer will have less than 2% waste.  Other roofers will have over 10%.   The best roofers will closely weigh the cost of labor, verses the cost of wasted materials.  They will add on up to 8% for waste on cheap shingles, but for more expensive shingles it will be closer to 3%.

Reinke Shakes Metal Shingles, made in Hebron Nebraska, USA since 1976.  We are convinced that Reinke Shakes are the most durable and toughest aluminum shingles ever made.  Reinke Shakes are also available in 99% Pure, Solid, Copper.

WARNING  -  CAUTION

Information collected on this site is believed to be correct, but there is no guarantee, because errors due occur.  There is no intent to disinform viewers.  We do not sell any information collected on this site.  When using, transporting, or just being near any of our products or equipment, use available safety equipment, and follow any and all safety proceedures.  Comply with OSHA, state, federal, and local safety rules.

Roofing is dangerous and can be deadly !

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