How To Build A Mono Pitch Roof Truss

Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run.

How to build a mono pitch roof truss.

This sort of mono pitch construction is known as lean to roof. A mono truss is a one sloped truss that forms a right angle triangle. You will also incur additional costs because it is much harder to deck and shingle a roof that is 12 12 pitch versus a 4 12 roof. It s often used for sheds garages or extension of an existing roof.

The rise will be the elevation change over the 12 inches. To build a simple wood truss start by measuring the length and height of the structure you re reinforcing to determine how big your truss should be. This online truss calculator will determine the all in cost of your truss based on key inputs related to the pitch width and overhang of your roof. Pitch slope the pitch or slope is the incline of the roof expressed as a fraction describing the rise over the run.

A mono truss roof allows for more sunlight and visual space proper drainage and relatively cheaper. Flat the most economical flat truss for a roof is provided when the depth of the truss in inches is approximately equal to 7 of the span in inches. Get on a ladder with a tape measure speed square and marker. To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page.

This is the distance between trusses. For example a slope of 6 12 means for every 12 inches of horizontal distance the slope of the roof will rise 6 inches vertically. Types of mono trusses 1. Measure 1 1 2 inches in from one side and draw a line with the speed square to mark the location for the first mono truss.

Then plan for the bottom chord of the truss to be 1 4 inch longer than the floor of the structure. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases. It will use the current cost of wooden rafters based on the average price found at home improvement stores. In such a house although the main roofing comes with a flat ceiling the mono pitched part of the roofing would have a slant.

The run or the base number is 12 inches. Measure 23 1 4 inches in and draw another line for the outside of the second truss. Difference in slope between the top and bottom chords is at least 3 12 or the bottom chord pitch is no more than half the top chord pitch.