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-   -   Roof size (https://www.cleaningtalk.com/f23/roof-size-254/)

Bruce Stanley 07-26-2006 04:39 AM

Roof size
 
I found this in the research I did a few years back when I started doing roofs thought it would help some others. Can't remimber where I got it from. But it is accuate.
For slopes of *****multiple the area by
4:12 ***************1.054
6:12 ***************1.118
8:12 ***************1.202
10:12 **************1.302
12:12 **************1.414


The slope of the roof is expressed as Rise:Run. A 4:12 roof rises 4 units vertically for each 12 units horizontally. This can be reasonably estimated by holding a ruler or tape measure at arms length while viewing the roof from the ground (from a distance, so that the angle up to the roof is not effecting the apparent ratio).




Barry M 07-26-2006 08:06 AM

Very helpful, thanks. I always muliplied by 1.3, I guess it was close. I also know of some who suggested multiplying by 1.5 according to your info that would be way to much.

russ s 07-28-2006 10:36 AM

hey thats good i usually just look at the sq footage of a home and guess the rest .... i never really looked that deep into trying to figure the actual square footage i just did it by size and difficulty

Nathan 07-28-2006 10:53 AM

Someone should write a quick calculator for that. It would probably be pretty easy.

russ s 07-28-2006 11:30 PM

whats a calculator????? we just scipher

Thad 07-29-2006 01:08 AM

"Naught times naught is naught.
Naught times one is naught.
Naught times two is..."

russ s 07-29-2006 08:28 AM

naught squared

garyluther 09-20-2012 09:22 AM

Very beneficial, thanks. I always muliplied by 1.3, I think it was near. I also know of some who recommended growing by 1.5 according to your details that would be way to much.


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