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How To Select The Right Roof Trusses For Your House


How To Build Your Own Home e-book available
 
 Home

Before You Begin

Pre-Construction
Tools Of The Trade

Designing Your Home

Building Permit Plans

Excavating Home Site

Laying Drain Pipes

Prepping For Slab

Pouring The Slab

Installinggg Sill Plate

cutting Outside Wall Parts

Building Outside Walls

Framing & Raising interior Walls

Exterior Wall Sheathing

Cutting Out Openings

Wrapping The House

Gettin Roof Trusses Ready

Raising Roof Trusses

Sheathing The Roof

Preping For Shingles

Shingling The Roof

Selecting Doors/Windows

Installinggg Doors/Windows

Preparing For Siding

Types Of
Siding


How To Select Siding

Siding The House

Siding Soffits & Trim

Installing Strapping

 

You are now ready to begin the roof. You have framed and wrapped the exterior of the house. The next step is preparing for the installation of Roof Trusses.


Roof Trusses Are Sturdy And Durable.  Roof Trusses Cut Down Your Labor Time.


  • How to choose the right truss for you.

  • What are some advantages of using Attic Trusses?

  • How to select the roof pitch.

  • How to calculating the height of your roof?

  • How to prepare the job site for the boom truck.



There Are Many Different Types Of Roof Trusses To Choose From.


You Can Choose From A Variety Of Roof Shapes As Well As Ceiling Types.


  1. How to select the right Roof Trusses for you.

    • Many variables come in to play when deciding which roof Trusses to select. As you can tell from the image above, there are many styles to choose from.

    • The exterior style of your home is certainly a variable to take into consideration. the roof line can change the style from a Saltbox to a Colonial. Or from a Bungalow to a Cape.

    • You must also decide on what type of ceilings you would like. Scissor Trusses will give you cathedral ceilings, while Raised Tie Scissor Trusses will give you a vaulted ceiling.

    • Combining various Trusses is also an option. For example in our home we chose to use Attic Trusses on the back 2/3 of the house and scissor Trusses on the front third. This enabled us to build a master suite upstairs and still have cathedral ceilings in the living room downstairs. Our living room and dining room are open concept but the dining room has a regular ceiling. The transition in ceiling height creates nice lines and angles in a room.

  2. What are some advantages of using Attic Trusses?

    • If you are planning of building a second story to your home and you are doing most of the work on your own, then choosing Attic Trusses might be the way to go.

    • Attic Trusses give you a second floor without having the added labor and expense of building one.

    • Attic Trusses cost more than regular Trusses but they will save you the expense of constructing and siding a second story.

    • Once the Trusses are up, you will have the framing for the second floor walls and floor. All that you will need to do is to finish the interior.

    • Another advantage of using attic Trusses is the reduction in property taxes since you home will only be one story.

    • If you do go with attic Trusses, you must specify what you will be using the second story for. You must let the manufacturer know if you will be using the second story as an attic or living space. The manufacturer will build them accordingly.

      An Attic Truss Can Be Used As An Attic For Storage, Or As A Second Floor For Extra Living Space.

    • Make sure that your house is built wide enough to ensure adequate space for your second floor. If your home is too narrow, then the Attic Trusses will be too low and narrow to use as a living space.

  3. After you have chosen the type of Trusses to use, you must choose the pitch of your roof.

      Various Roof Pitches. From A 4/12 to a 10/12 Pitch.

    • The pitch of the roof is the angle at which the roof slopes. The greater the pitch the steeper the roof. Therefore, a roof with a 10/12 pitch is steeper than a roof with a 4/12 pitch.

    • A roof pitch is equal to the number of inches of rise per foot of run. For example if a roof rises 7" for every foot of run, then the roof has a 7/12 pitch.

      Calculating The Pitch Of The Roof.

    • If your winters are long and cold, then you will want a steeper roof pitch. Flatter roofs have more of a tendency to collect snow for a longer period of time. Roof pitch isn't the only factor determining how much snow stays on the roof. Indoor temperatures and roof exposure to sun also play a major role in the amount and duration of snow on roofs.

    • A steeper roof pitch is better for winters but much more difficult to work on. Usually a 6/12 pitch is sufficient for substantial snow load and also comfortable to work on. However, be prepared to rake off any roof if the snow becomes too heavy.

  4. How to calculate the height of your roof?

    A Description Of The Span Of Your House, The Run Of The House,The Total Rise Of The Roof, And The Slope Or Pitch Of The Roof.

    • Roof height at its peak = roof Rise x Run.

    • If you roof has a 6/12 pitch, then the rise is 6". If the Run is 16', then your roof height is 6" x 16'. Or 1/2' x 16' = 8'.

    • Therefore the total rise of the roof would be 8' and it would sit 8' above the exterior wall height at its peak.

  5. How to order Roof Trusses.

    • Now that you have decided on the type and pitch of your Roof Trusses, its time to contact you manufacturer and order the Roof Trusses.

    • You should contact the truss manufacturer early on in the building process and inquire as to the turn around time from the time the order is placed to the time of delivery. Some Trusses take longer to manufacture than others, so be sure to give yourself plenty of lee way if you're ordering specialty Trusses.

    • Plan on receiving them while you're still in the process of building your walls, so they will be ready to install as soon as you are. Installingg your roof in a timely fashion, will help to protect your house against the elements.

    • The truss manufacturer will need to know the span of your house, the amount of overhang on either side of the house, the distance between Trusses, and the type of gable end you will need.

    • If you are using Attic Trusses as a second floor, you may want a window at on the end wall of the second floor. If that is the case then, you will need to two additional Attic Trusses in place of Gable Ends. You will need to build a rough opening for a window into an Attic Truss.

    • Be sure to mention to them that you would like the Gable ends or the Trusses you will use as Gable ends, to be stacked at the top of the stack, in order for you to have access to them prior to installation.

  6. How to prepare the site for the boom truck that will raise the Trusses.

    • Clear out a spot near the house to place the Trusses .

    • Be sure that the 18 wheeler delivering the Trusses will be able to access the spot to drop them.

    • Drop the Trusses close enough to the house for the boom truck to have access to both the Trusses and the house, and to have ample space to maneuver them.

    • This would also be a good time to shop around for a boom truck and operator, to set the Trusses.



  
   

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