Kai Roofing Calculator

Calculate the surface area of your roof

Roofing materials calculator

roof materials calculator

Shingles Calculator #

Your roof area:
Shingles: ...
Use this shingles calculator to find out the number of shingles required for a certain roof area.
You can configure shingle dimensions and can apply other filters like overlapping, per pack, estimated losses etc
Most shingles have an overlapping system - check the specs for your shingles or just add some approximations so you can get a general idea of the number of shingles.
* Change metric units from top right of the screen.
* Shingle metric subunits - are subdivisions of your selected metric.

Wooden Materials Calculator #

roof materials calculator

Wooden materials

Traditional romanian roof calculator (very simple structure).
- beams structure 10 x 10 x 400 cm throughout
- covered with a 2.5 cm thick wooden board
- then a waterproof membrane (like PVC or Bitumen)
- then smaller vertical beams (2.5 x 5 x 400 cm) - they hold the membrane
- then smaller horizontal beams (2.5 x 5 x 400 cm) - they support the shingles. Those 2 rows of smaller beams provide space for ventilation.
- shingles
Your roof area:
Wooden Beams (10 x 10 x 400): ... or ... pieces
Wooden Beams (2.5 x 5 x 400) ... or ... pieces
Roofing board: ... (2.5 cm thick - 40m² to one m³)
Roofing membrane: ...
Roof nails: (7cm) ... kg
Roof nails: (10cm) ... kg


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Roof Covering Materials

Wood Shingle Roofing

Wood shingle are thin, tapered pieces of wood which are treated with fire retardant. They are used because their beautiful look, durability and high-wind resistance.

Clay Tile Roofing

Clay tile roofing is maybe the oldest form of roofing. We find clay tiles as early as 3rd millennium BC in ancient Mesopotamia and they were brought to America in the 17th century. A clay tile roof is a more expensive investment but it surely looks good.

Metal Roofing

Metal roofing is also an old solution - we find it in 27 B.C. with Romans using cooper for the Pantheon. It has a few advantages like - is light, it has a very long life - going up to 100 years, it is recyclable and is very resistant to high winds.

Asphalt Roofing

Asphalt roofing is one of the most common form of roof covering because it is cheap, easy to install and easy to maintain. This type of roofing was invented in America around 1900.

Slate Roofing

Slate is a natural stone created by intense heat and pressure produced by ancient seas. The stone can be split into thin sheets, it is waterproof and it is used mainly because of its beauty ad durability.

Flat Roof Covering Solutions

There are more types of flat roof coverings like PVC, rubber, bitumen and tar and gravel.

PVC Flat Roofing

PVC or vinyl is a common type of flat roof solution. It has a few important advantages like it is very light, long-lasting and because it is it heat-welded at the seams, it is very resistant to leaks.

Rubber Roofing

Rubber roofing is a good solution because is cheap, long lasting and is relatively easy to install and maintain. Rubber roofing is virtually leak-proof when installed as a rubber roll.

Spray Foam Roofing

Spray foam roofing is a liquid plastic sprayed over other roofing substrate, which expands to cover your flat roof.
Happy roofing worker