Inspector Tools, Smoke Testing, Test-Kits and Safety Products
Meters, Test Kits, Inspection Equipment & Tools!
[ 0 Items | $0.00 | 0 lbs ]
Search Catalog:
Categories
Air Quality - IAQ

Carbon Monoxide (CO)

EMF / Microwave Meters

Fire and Smoke Safety

Food Safety & Hygiene

Gas and Leak Detectors

Heat Detector Testing

Light, LUX, UV Meters

Manometers / Pressure

Moisture Detectors

Radon Gas Testing

Radon Mitigation & Fans

Refractometers - BRIX

Smoke Trace Emitters

Soil & Grain Meters

Sound Level Meters

Specialty Instruments

Thermometers

Tools and Hardware

Videoscope Borescope

Water & Flood Alarms

Water Testing

Inspection Kits / Forms

Promotional Items
Customer Service
Customer Service
About Us
Shipping Policy
Return Policy
Privacy Notice
Conditions of Use
Contact Us
Roof Area Calculator
conversions
inchesfeet
1.08
2.17
3.25
4.33
5.42
6.50
7.58
8.67
9.75
10.83
11.92
Roof Area Calculators:
For each of the roof types pictured below, L = Horizontal Length, W = Horizontal Width, and H = Vertical Height, all entered in feet. Slope in inches per foot may substituted for H.

Hip roofs can present a problem for height measurement, and the slope method may be substituted in place of height measurement. Since modern architecture has allowed the incidence of mixed slopes in a single structure, the calculator allows for entry of differing slopes for intersecting roofs.

For many roofs, dimensions can be taken from the ground or from a ladder. Be sure that your measurements include any overhang at the eaves. Height can often be measured at the end wall at the center of a gable.

Complex roofs may have numerous repeats of these shapes - perform a separate calculation for each section, then add the results together (on paper) to obtain total roof area. A "salt box" roof with unequal sides may be calculated as two separate shed roof shapes. An "A-Frame" roof is simply a gable with high slope.


GABLE OR HIP ROOF: A gable roof and a hip roof of the same length and slope will have identical areas.  
Enter roof dimensions below for your roof in feet, (or slope as inches rise per foot.)
  • If you enter only L-1, W-1, & H-1, the result will be the area of a single straight gable roof.
  • If you enter all six values, the result will be the actual exposed area of both roofs. You cannot enter values for Area 2 alone.
  • The values calculated for roof 1 and roof 2 are independent. The total will not equal their added values, as the calculator subtracts the hidden area from roof 1 at the intersection, and displays only the actual exposed roof area for the total.
L-1W-1H-1 slope1
or /12
Area 1
= ft2
Total Exposed,
Areas 1 & 2
Combined:
ft2
Roof 1 Hidden Area
ft2
Roof 2 Ridge Length
ft
L-2W-2 H-2 slope2
or /12
Area 2
= ft2
 

Shed Roof:
Gather the dimensions for your shed roof, and enter below in feet, (or slope as inches rise per foot.)
L-5
W-5
H-5
 
or
Slope
 
/12
Area
= ft2


Additional Links:
How to Measure a Roof Roof Measurement Worksheet
Continue
Specials 
Versa-Test Heat Detector Test Kit (VT-694) with Heat Pads & Solution
Versa-Test Heat Detector Test Kit (VT-694) with Heat Pads & Solution
$319.99 $239.00
25s HSI Smoke Check Canned Smoke (25s) 300 Tests Per Can
25s HSI Smoke Check Canned Smoke (25s) 300 Tests Per Can
$11.99 $8.88
Megohmmeter: Digital Insulation Resistance Tester (DIT360) with Case
Megohmmeter: Digital Insulation Resistance Tester (DIT360) with Case
$299.00 $199.00
SD Memory Card Transcend 300x (SD-16GB) 16gB Class 10
SD Memory Card Transcend 300x (SD-16GB) 16gB Class 10
$14.95 $11.99
Combustible Gas Leak Detector (CD200) 18" Goose Neck, Tip Light
Combustible Gas Leak Detector (CD200) 18" Goose Neck, Tip Light
$299.95 $229.00
Protimeter SurveyMaster Basic (BLD5365L) Non-invasive + Pin Meter
Protimeter SurveyMaster Basic (BLD5365L) Non-invasive + Pin Meter
$604.96 $555.00
Welcome
Login:
eMail Address:
Password:
Forgotten Password?
Click Here
First Time Visitor?
Join Free
Specials more
Lutron Infrared Thermometer 7:1 (TM-960) -30 to 305 C
Lutron Infrared Thermometer 7:1 (TM-960) -30 to 305 C
$99.95 $59.00
Manufacturers
Dashboard
Radon Results Lookup
Carbon Monoxide Gas
CO Detector Badge
Conversion Calculators
Radon Gas Facts
Quick Find

Search Catalog:
Advanced Search
What's New? more
Solo 800 Smoke & CO Detector Testing Starter Kit
Solo 800 Smoke & CO Detector Testing Starter Kit
$599.96 $349.00
  Your IP Address is: 54.81.196.35
Copyright Inspect USA®. All rights reserved. 1995-2018
No part of this website may be reproduced without our express consent.
InspectUSA.com - Distributors of TestKits, Inspection Tools, HVAC Smoke & Safety Equipment.
eMail with suggestions, product inquiries or comments. Thank you.
Customer Reviews