Roof Framing 101 Pdf

Studs plates headers rafters girders flooring and joists are all terms used to identify different components in framing.

Roof framing 101 pdf.

Introduction to prescriptive roof framing 3 prescriptive roof construction the international residential code irc and the international building code ibc set out specific guidelines within which conventional light frame wood structures may be built without the need for engineering analysis of each component. Ive had a construction master pro as an app for some time but this dvd unlocks its full power. Roof pitch the roof pitch is the numerical measure of how steep or shallow a roof is. The code also allows you to apply a slope reduc tion factor to account for snow blowing or.

All of the necessary cuts for a particular rafter can be laid out with these two squares. Figure 2 2 roof framing terms. Chapter 17 reading guide 465. Definite value for the money.

Roofs are basically five types. Floor framing on top wall framing in middle roof framing on bottom t was a coincidence that another con tractor and i began framing houses next door to one another on the same day. Professional tradesmen use rafter and framing squares to save time on roof construction projects. If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12.

Shed or lean to roof gambrel roof mansard roof. 3 inch rise per 12 run is a 3 12 pitch roof. In the u s it is defined by the rise in inches to a 12 run. Shed gable hip gambrel and mansard.

This reference guide will provide a basic knowledge of. Framing is the process of connecting building materials together to create a structure. But by the time his house was framed mine was shingled wired and plumbed. 4 12 through 9 12 are the most common pitches.

Framing is a construction system. When you fi nd it in the text write down the defi nition. Framing errors 10 91 installing plywood sheathing toe nails are stronger when adding up the weight of snow of a sloping roof use the horizontal run of the roof since the same amount of snow would accumulate on a perfectly flat roof. I wish i was taught this at college years ago.

Construction how to roofing march 27 2008 sonia eht explores some basic roof framing techniques from layout to installation. Roof framing is the last major framing activity in the construction of a house. It was no coincidence that the other contractor ran out of money and had to. I just received and watched roof framing 101 volume 1 0.

Vertical rise over horizontal run. This is known as prescriptive. Line length is the hyptenuse of the triangle whose.