Calculate the surface area of your roof

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Roof area calculator

-

U Shaped

No pitch required (how )
Roof calculator - U Shaped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
L3
l
H
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

AK = KG = BL = LF = ...
CD = DE = HI = IJ = ...
AB = ...
BC = ...
EF = ...
FG = ...
GH = ...
AJ = ...
IK = ...
KL = ...
DL = ...
roof

Roof Surfaces

ABLK = ...
BCDL = ...
DEFL = ...
FGKL = ...
GHIK = ...
AJIK = ...

Roof Slopes

ABLK = BCDL = DEFL = FGKL = GHIK = AJIK
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
Roof calculator - U Shaped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
L3
l
H
Small dormer:
Lu 0
Lu 1
h
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

AK = KG = BL = LF = ...
CD = DE = HI = IJ = ...
AB = ...
BC = ...
EF = ...
FG = ...
GH = ...
AJ = ...
IK = ...
KL = ...
DL = ...
roof

Roof Surfaces

ABLK = ...
BCDL = ...
DEFL = ...
FGKL = ...
GHIK = ...
AJIK = ...

Roof Slopes

ABLK = BCDL = DEFL = FGKL = GHIK = AJIK
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
Roof calculator - U Shaped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
L3
l
H
Large dormer:
Lu 0
Lu 1
Lu 2
h
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

AK = KG = BL = LF = ...
CD = DE = HI = IJ = ...
AB = ...
BC = ...
EF = ...
FG = ...
GH = ...
AJ = ...
IK = ...
KL = ...
DL = ...
roof

Roof Surfaces

ABLK = ...
BCDL = ...
DEFL = ...
FGKL = ...
GHIK = ...
AJIK = ...

Roof Slopes

ABLK = BCDL = DEFL = FGKL = GHIK = AJIK
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
Roof calculator - U Shaped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
L3
l
H
Small dormer:
Lu 0
Lu 1
h
Small dormer 2:
Lu 3
Lu 4
h 2
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

AK = KG = BL = LF = ...
CD = DE = HI = IJ = ...
AB = ...
BC = ...
EF = ...
FG = ...
GH = ...
AJ = ...
IK = ...
KL = ...
DL = ...
roof

Roof Surfaces

ABLK = ...
BCDL = ...
DEFL = ...
FGKL = ...
GHIK = ...
AJIK = ...

Roof Slopes

ABLK = BCDL = DEFL = FGKL = GHIK = AJIK
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
Roof calculator - U Shaped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
L3
l
H
Large dormer:
Lu 0
Lu 1
Lu 2
h
Large dormer 2:
Lu 4
Lu 5
Lu 6
h 2
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

AK = KG = BL = LF = ...
CD = DE = HI = IJ = ...
AB = ...
BC = ...
EF = ...
FG = ...
GH = ...
AJ = ...
IK = ...
KL = ...
DL = ...
roof

Roof Surfaces

ABLK = ...
BCDL = ...
DEFL = ...
FGKL = ...
GHIK = ...
AJIK = ...

Roof Slopes

ABLK = BCDL = DEFL = FGKL = GHIK = AJIK
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
Roof calculator - U Shaped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
L3
l
H
Large dormer:
Lu 0
Lu 1
Lu 2
h
Small dormer:
Lu 4
Lu 5
h 2
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

AK = KG = BL = LF = ...
CD = DE = HI = IJ = ...
AB = ...
BC = ...
EF = ...
FG = ...
GH = ...
AJ = ...
IK = ...
KL = ...
DL = ...
roof

Roof Surfaces

ABLK = ...
BCDL = ...
DEFL = ...
FGKL = ...
GHIK = ...
AJIK = ...

Roof Slopes

ABLK = BCDL = DEFL = FGKL = GHIK = AJIK
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12

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