|
Posted by Red Green on April 29, 2008, 7:59 pm
> Erma1ina wrote:
>
>>JonP wrote:
>>
>>
>>>I just received a re-roofing quote from a contractor that says that
>>>the job will require 17 squares. The property is 950sqft under roof
>>>and the pitch is 4.5/12.
>>>
>>>Is it possible that a 950sqft house can have a 1,700sqft roof? I'd
>>>measure it myself but it's a 500 mile trip to the house.
>>>
>>>
>>
>>Given that pitch, 17 square for the roof seems VERY high for a 950
>>sqft house.
>>
>>Check out this calculator. The results are rough -- no accounting for
>>type (hip, gable, etc) of roof -- but it won't be wildly off:
>>
>>http://www.servicemagic.com/resources.calc.roofing.13.html
>>
>>
> I dusted off some brain cells I haven't used in a while and tried to
> calculate based on the geometry
> I can remember......close, but my calc. was under 1,000. Even with a
> 2' overhang and 10% waste,
> it comes to around 12 squares. If the roofer is known and reputable,
> nothing wrong with questioning
> the estimate. Could be something as simple as a typo. If he tries to
> explain it away, then another
> roofer is in order.
>
Just x**2+Y**2=r**2 is all ya need to dust off. Remember ol' Pythagoras?
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap