22. Code Requirements (Residential Stairs) The stairs shown to the right were measured with a tread depth of 11” while the risers were at a height of 7 ½”. The IBC states that for residential stairs the treads shall measure a minimum of 10” and the risers shall measure a maximum of 7 ¾”. These stairs DO meet the IBC.
49. Mortar Mortar Joint #1 – Joint #1 appears to be a troweled joint, the measured width was 3/8” the type of mortar is most likely N. The above bldg can be considered a commercial use structure. Mortar Joint #2 – Joint #2 appears to be a tooled joint, the measured width of the joint was 3/8”. The mortar type is most likely N. The above bldg can be considered a commercial use structure.
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56. Steep Roof Drainage Gutter Splash block Downspout Downspout – A vertical pipe for conducting water from a roof to a lower lever. Gutter – A channel that collects rainwater and snowmelt at the eave of a roof. Splash block – A small precast block of concrete or plastic used to divert water at the bottom of a downspout.
57. Steep Roof Materials Underlayment – A layer of waterproof material such as a building felt between roof sheathing and roofing. Shingle – A thin unit of water-resistant material nailed in overlapping fashion with many other units to render a sloping roof watertight. Wood Shingles
58. Steep Roof Shapes From left top clockwise: Gable Roof Gambrel Roof Hip Roof
59. Steep Roof Terms Ridge – intersection of two roof planes Valley – trough formed by intersection of two roof slopes. Eave – Horizontal edge at the low side of a sloping roof.
60. Steep Roof Terms Rake – sloping edge of a steep roof. Soffit – Undersurface of a stair or roof overhang. Fascia – The exposed vertical face of an eave.