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` = "Dormer Metal Roof"`

Enter a value for all fields

The **Metal for a Dormer **calculator computes the metal roof materials for one or more roof dormers based on the dimensions.

**INSTRUCTIONS**: Choose units and enter the following:

- (
**DD**) Dormer Depth - (
**DW**) Dormer Width - (
**P**) Pitch of Dormer Gable (choose pitch from list)_{2} - (
**P**) Pitch of Main Roof (choose pitch from list)_{1} - (
**n**) Number of Dormers - (
**PW**) Panel Width (default 36"). This is the coverage width and not necessarily the measured width of the metal panels. - (
**TO**) Tolerance (default 3"). This is added to trim and panel lengths as a safety margin.

**Metal for a Roof Dormer (m):** The calculator returns:

**(TA) Area**: Total surface area of dormer(s).**(r) Ridge Cap:**Length of the Ridge Cap (red)**(j) Valley Trim Length:**Length of each individual hip ridge- (
**sG**)**Snow Guard:**Total length of snow guard to for under the ridge cap. **Metal Panels:**Number and max length of Metal Panels (36" wide coverage)- (
**PL**) Length of Panels - (
**nP+**) Number of Panels with no-reuse. This is conservatively high. - (
**nP-**) Number of Panels with reuse of cuts. This accounts for one panel used in multiple segments in the hips (see**ECONOMY**below) **(α) Panel Angle**: The angle of the hip cuts**(mS) Metal Screws**: number of screws needed to attach panels to roof.

- (
**(aT) Angle Trim:**Total length of Angle Trim (yellow)

However, these can be automatically converted to compatible units via the pull-down menu.

**ECONOMY:** This calculator provides two numbers of panels. The __ first (nP+) __is a high number with no reduction in the number of panels based on reusing panel leftovers for additional sections (see graphic). When smaller sections are cut out of a panel of maximum length, it is possible in many cases to use the residual (leftover) for another section. This maximum number assumes that a full panel will be used for each section and therefore provides the maximum number of metal panels needed. The

An addition of the **TO** parameter (default of 3") s added to the following dimensions.

- (r) Ridge Cap
- (sG) Snow Guard
- (j) Valley Trim
- (PL) Panel Length
- (aT) Angle Trim

It's better to have too much and have to cut it, than not enough.

- Gabled Roof
- Hip Roof
- Shed Roof
- Dormers

- Total Building Materials Calculator
- Pitch of a Roof - Computes angle of incline in the roof in both degrees and rise over 12" run (e.g. 26.6
^{o}: 6/12) based on the length of the rise and run. - Number of Trusses Needed for a Roof - number of trusses needed based on the roof width and the truss spacing.
- 4x8s needed for a roof - Calculates the number of 4x8 sheets needed to cover a roof.
- Roofing nails needed for a roof - Calculates the number of roofing nails needed for a roof in normal and high wind conditions.
- Number and Length of Metal Roof Panels - Computes the length and number of metal panels and trim pieces for a metal roof.
- Screws for a Metal Roof - Computes the number of screws needed for a metal roof.
- Number and Length of Purlins for a Roof - Computes the number of purlins for a roof based on dimensions and spacing.
- Number and Length of Rafters - Computes the number and length of rafter boards based on roof dimensions and spacing.
- Number and Length of Rafter and Collar ties - Computes the number and length of rafter ties and collar ties based on roof dimensions and spacing.
- Number and Length of wall top and bottom wall plates
- Number of Studs for a Room
- Number of Studs in a Wall
- Room Interior Area (wall and ceiling)
- Cubic Feet in a Room (volume)
- Number of 4x8 or 4x12 Sheets for a Room
- Number and Length of Floor Joists
- Number of Joist Hangers
- Compute the Cost of Floor Joists
- Compute iJoists for larger floors
- Compute the Number of 4x8 Sheets to cover the Deck or Floor
- Compute the number of Decking Boards to cover the deck or floor

Roofing Geometry Calculators