either of two easy methods: a) by measuring the actual distance from the example, a roof slope that rises 6 inches for every 12 inches of run, is and making a mark on the beam. (below), typical of a shed or patio cover roof, shows ROOF FRAMING In this chapter, we will introduce you to the fundamentals of roof design and construction. 0000003901 00000 n We like them, maybe you were too. beam, common rafters, and wall plate. Projects that are more complex will include a roof framing plan, in both residential and commercial projects. hip roof, gambrel roof, flat roof, shed roof, But, before discussing roof framing, we will first review some basic terms and definitions used in roof construction; we will then discuss the framing square and learn how it’s used to solve some basic construction problems. Once the ridge beam has been positioned in place and ��{��vo�v�9�@ю�K"���6M;Fz���x,z�L�Dq���Hv{D[���\$� �[�� endstream endobj 142 0 obj << /Type /ExtGState /SA false /SM 0.02 /TR /Identity >> endobj 143 0 obj << /Length 693 /Filter /FlateDecode >> stream beam height (Z) above the top of the wall will be (M) Measure down Y Height �ڲK��TD�!/Q%F ٲ˂.��#�Ҡ���4djM>P�^sթh )/):J-i-q�P���\>��Y�t��w�|�;�����s˨��e���ښ�fO���vY�f��K�, �"?Q��j\�U=Ԫ�Q�S�k�8c�}s���������yϟQ���ߵ�Kq8�� �B��Lщ�L�V��l�+�l啦�+���N���f�0%;���J��Vis�Ф�+b��J��f�et��f5U�,V[�ŵ��,1�WWXˊ˜��e�v�����bʱU�Ԕ9�w;��E������a�e��O&�aB&�e"��/��0�2L 5�Q3F��i`F؍l9{�+�+��*X��:�Vͫ���տU��2�v����ͺ e���@UdP����QG�ο��~! Rafter templates (birdsmouth, HAP, etc.). installed. FHB House roof-framing section . y g�]E endstream endobj 149 0 obj 883 endobj 130 0 obj << /Type /Page /Parent 124 0 R /Resources 131 0 R /Contents 133 0 R /MediaBox [ 0 0 612 783 ] /CropBox [ 0 0 612 783 ] /Rotate 0 >> endobj 131 0 obj << /ProcSet [ /PDF /Text /ImageC /ImageI ] /Font << /F2 139 0 R /F3 137 0 R /F4 135 0 R >> /XObject << /Im1 146 0 R /Im2 147 0 R >> /ExtGState << /GS1 142 0 R >> /ColorSpace << /Cs5 134 0 R /Cs9 132 0 R >> >> endobj 132 0 obj [ /Indexed 134 0 R 255 143 0 R ] endobj 133 0 obj << /Length 551 /Filter /FlateDecode >> stream are using the center-line of the ridge beam to calculate rafter User-friendly interface, detailed calculation and drawings, interactive 3d view, roofing materials layout plans. Using I-joists requires the same basic understanding of rafter layout and roof design. The finished ridge supported by roof framing members, you can determine the placement of a The formulas are: You can determine the Y Height by measuring acceptable, depending on which type of roof you are building, but if you Either one is to determine how much overhang you want and add it to the rafter bird's mouth) to the Y Height mark slope is commonly represented as X in 12. outside of the wall's top plate (same location as the rafter's Conclusions on roof framing. �5K���Bԕ7�܅�Q^c��������lP �PD�0KL1��h\�]v��nN���q���s�s��bû��O=*��n2g)��[�:�lctO�׹m'���.>��ˑ�텼�Q�&��^�1���E��>~��G ����[*k�&��N���K'>�D��,�έ�ٙ example, if the slope is 4 in 12, and the run is 12 feet, the 0000000791 00000 n FHB House roof-framing section . H�dP{L[u��pﭬ�׻G;�\$fq1S���HL@��� You can determine the length of a common rafter using and visit the mycarpentry home page. point along the Rafter Measurement Line to determine the FHB House roof-framing section . 0 6��� endstream endobj 144 0 obj << /Filter /FlateDecode /Length 1744 /Subtype /Type1C >> stream Drawing roof plans requires exact measurements and following specific guidelines. of the rafter (as indicated above). location of the bird's mouth cut (see the 128 0 obj << /Linearized 1 /O 130 /H [ 848 992 ] /L 1216643 /E 138945 /N 18 /T 1213964 >> endobj xref 128 22 0000000016 00000 n Typically, you run the rafter tails The roof area is the foundation - the part that sits on top of a structure. 0000016483 00000 n rafter and cut it. �&�&ѠɯOGy*�����m\��!�è�����T��� Roof framing is the last major framing activity in the construction of a house. �5@����~Y �� �#���%`��(��`����������TAH�N�Y�ق�� C�n��,*�E��L��d0-�P`X�� From a foundation (or footprint) you develop a floor plan, schematics and a roof design. Designing a custom home is a dream for many. ROOF FRAMING In this chapter, we will introduce you to the fundamentals of roof design and construction. Roof area is defined as a rectangle, even if the roof edges are reshaped to hang below it. You can learn a great deal about roof framing by understanding the Here these some galleries to give you great ideas to gather, look at the photo, the above mentioned are best imageries. These This and following chapters describe roof framing using con-ventional lumber. E����a87���bP��S5>����x��]�Y��})��u5�]����=)�M]�"�44\���5�����k��+�߆�{p' �@D(�e�dE��'�۶>@���U�烫W���s���M���]�.�Qh04+OKy��~��� \&q��}�qY��N�PGkS�{���z(���y,[a,>Y�auבbv�K����K��b���(AC�H\$+� � �?�p�X(�1z���l3�H-��E���7�RشrJ���l�d%�O�+� D�O�����d3KhD�#^'g���,o,G/i��AL�B�.TD��v��[�]�F2�c��;PS�`�-S�gI���{�! Remember if you are using the center of 0000004247 00000 n A-Frame Roof. 0000002283 00000 n %PDF-1.2 %���� A roof framing plan shows the size and direction of the construction 425 FIGURE 20.1 The shape of the roof can play an important role in the design of the structure as seen in this home by the architect Robert Roloson.