1 Exam Prep Architectural Sheet Metal Manual Tabs and Highlights

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1 1 Exam Prep Architectural Sheet Metal Manual Tabs and Highlights These 1 Exam Prep tabs are based on the 2012 Sheet Metal and Air Conditioning Contractors' National Association, Inc., seventh edition. Each tabs sheet has five rows of tabs. Start with the first tab at the first row at the top of the page; proceed down that row placing the tabs at the locations listed below. Place each tab in your book setting it down one notch until you get to the bottom of a page. Then start back at the top again. Special Note to our Students: If you are a 1 Exam Prep student, here is how to really get the most from these tabs. Follow the above instructions, but before placing the tab, find the tab's topic in the outline of your appropriate module. Now locate and highlight several items listed in the outline just before the topic, and just after. See how the topic fits in the outline and how it relates as a concept to the broader concept spelled out in the outline. If you take a few minutes to do this, when you take the test key words in the test questions will remind you of where the information is in the manual! 1Exam Prep Tab Page # Highlight/Reason Table of Contents vii RP.2 RP.4 Typical Metal Roof Plan Typical Shingle/Tile/Slate-Roof Plan Ch. 1: Roof 1.1 Starts Chapter. Drainage Systems Table 1-1 gives multiplier for design of pitched roof. 1.2 Rainfall Data - Florida has 3 zones 1.5 Sample problem to size rectangular gutter 1.7 Chart 1-1: Width of Rectangular Gutters for Given Roof Areas Gauges 1.11 Table 1-5: Recommended Minimum Gages for Gutter, Aluminum 1.18 Table 1-6: Maximum Distance Between Expansion Joint and Downspout 1.34 Table 1-8: Recommended Sizes - Gutter Brackets or Straps 1.58 The outlet tube should be a minimum length of 4 in. after a 3/8inch flange has been turned at the top If built in overflow is not used, set the top of the conductor head 1 in. below the scupper to permit overflow 1.66 The conductor head should be a minimum of 2 in wider than a scupper. 1 Exam Prep Architectural Sheet Metal 1

2 Recommended minimum for construction of scuppers is 24 ga. galvanized steel,.040 in. aluminum, 16 oz copper, or 26 ga. stainless steel Table 1-9: Dimensions and Minimum Gauges of Standard Downspout 1.80 Downspouts of 10' or less shall have two straps of support and longer downspouts shall be supported at10 ft. maximum intervals. Ch. 2: Roof Edging 2.1 and Perimeters Starts Chapter. d.) Fascia. Use Table 2-1, face limit dimensions... 4 inch flat vertical height is the maximum for an uncleated or unlocked edge ) Cleats: horizontal cleats should be continuous, in lengths not to exceed 10 feet with 1/4 inch clearance between ends. 6.) Vertical laps of metal drip edges... should be at least 1 inch to minimize wind-driven water entry. 2.4 Table 2-1: Gravel-Stop and Cap Fascia Design 2.8 Figure 2-5A shows a gravel stop installed with a ¼ inch opening between sections. This opening is covered by a 6 inch cover plate formed to the profile of the gravel-stop Figure 2-10 shows a corner and a joint for a typical extruded aluminum gravel stop fascia system...each leg of the corner should not exceed 18 inches in length. To form the joint a back up plate of.025 in. Aluminum is placed on top of the envelope fold. Ch. 3: Copings 3.1 Starts Chapter. All single lap joints should be 3 in, minimum width. All back-up plates should be 6 in. width. All cover plates should be 6 in. minimum width. 3.3 Table 3-1: Coping Design 3.4 Coping Forming Guide Limits 3.9 Figure 3-4: Formed Metal Copings - Typical Profiles 3.11 Figure 3-5: Formed Metal Copings Curved 3.13 Figure 3-4: Formed Metal Copings With Flashing 3.16 Formed Metal Coping-Dual Walls 3.18 Parapet Wall Covering 1 Exam Prep Architectural Sheet Metal 2

3 Ch. 4: Flashing 4.1 Starts Chapter. It is suggested that architects should specify through wall flashings to be furnished and cut to size. Joints in flashing should generally lap 4 in. and be soldered or sealed. 4.2 Flashings should be extended to within 1/2 inch of the exterior face and should be used wherever there is any possibility of water entering the structure. 4.6 Metal base flashing is not recommended for use with membrane roofing systems. Joints in flashing should be lapped 4 in. All counter flashing receivers should be elevated 10 inches above the finished roof. The lower edge of metal counter flashing should be 1 inch minimum above a cant. Figure 4-4E shows a method of installing a counter flashing in an existing masonry wall. Cut a reglet in the masonry joint to a depth of at least 1½ ". 4.8 The counter flashings is lapped at all joints and is lapped and sealed at corners. The recommended minimum gage for counter flashing is 16 oz copper, 26 ga. stainless steel, or 26 ga. galvanized steel Counter flashings should be lapped at joints and are mitered and soldered or sealed at corners. The recommended minimum gage for counter flashing is 16 oz copper, 26 ga. stainless steel, 24 ga. galvanized steel, or in. aluminum Valley Flashings Installation 4.20 Flashings should be 18 inches wide for slopes 6 in. or more to the foot Figure 4-12A and B are sections through shingle roof showing methods of flashing the ridge. The flashing is generally formed in 10ft lengths and is lapped a minimum of 4 in Chimney Flashing Ledge Flashing 4.32 Dormer Head Sill Flashing (frame) 4.34 Shingle Roof Flashing 4.36 Termite shields may be fabricated of copper or galvanized steel. 1 Exam Prep Architectural Sheet Metal 3

4 Ch 5: Building 5.1 Starts Chapter. Expansion Joints in the shield should be lapped at 3/4". 5.2 A continuous flange serves both to hold the expansion cap and as a counter flashing Cap pieces are formed in sections not to exceed 10 ft. in length and are joined by standing seams held in place by cleats. Minimum recommended gage for the expansion joint shown is 26 ga. stainless steel, 16 oz. copper, 24 ga. galvanized steel, or in. aluminum Figure 5-5: Building Expansion Joints - Roof 5.12 Minimum recommended gage for expansion joint cover is 22 ga. galvanized steel, 16 oz. copper, 0.050in. aluminum, and 24 ga. stainless steel Figure 5-8: Building Expansion Joints - in Slabs Ch. 6: Metal Roof 6.1 Starts chapter. Systems h(1) Whether expansion joints are controlled by anchoring the roof at the ridge, mid-point rise, at the eave or in the transverse seams of pans that are limited to 8 or 10 ft. 6.2 h(4) Expansion cleats should be used for standing seam pans of 30ft. or more continuous run. Fixed cleats can be placed at mid span with 5 to 10 ft spacing. 6.4 Metal siding and roofing can be formed by two different methods called roll forming and press brake forming. Pre-Painted Metals Commentary Roof Support Systems 6.10 The recommended metals for flat seem roofs are 20 oz. copper, in. stainless steel, 26 ga. terne, or 26 ga. zinc Gage and pan widths for standing seam roofs 6.18 Copper, minimum 16 oz, or aluminum in. is recommended for batten seam roofing Bermuda roof is applied beginning at the eave. The first pan is hooked over a continuous cleat as shown in Detail 2, Figure Table 6-2: Recommended Gages and Pan Widths for Bermuda Roofs Eves Not Subject to Ice Dam 1 Exam Prep Architectural Sheet Metal 4

5 Eves Subject to Ice Dam 6.32 Vented and Non-Vented Ridge Caps 6.40 Window Bay and Ornamental Roofs Ch. 7: Metal Walls 7.1 Starts Chapter. 7.6 Details of Head, Soffit, and Sill Flashing 7.8 Wall to Roof Flashing 7.10 A girt is installed within an inch or so of the nailer behind the cant....girt dimensions typically project ½ to 1 inch from the surface to which they are attached Wall Panel Corner Ch. 8: Wall and 8.1 Starts Chapter. Roof Penetrations Roof Panel Penetrations. 8.1 Laps of rectangular shaped penetration flashing over lower elevation roof panel should be 12 in. minimum and have double rows of sealant or butyl tape. When the width of the rectangular flashing, for the upper vertical projection, exceeds 18 in. or one pan width, a cricket is preferred Wall Penetration Flashing Roof Penetration Flashing Pipes 8.20 Roof Penetration Flashing Structural Steel 8.22 Equipment Support Flashing Ch 9: Louvers 9.1 Starts Chapter. Screens and Skylights Table 8-1: Rooftop Equipment Elevation 9.2 Where blades exceed 36 in. in width a 1/8 x 1 in. stiffener bar should be used to connect louver blades. 9.4 Table 9-1: Louver Blade and Frame Construction Details 9.6 Where a louver opening is so large that the adjustable blades would exceed 48 in. width, the louver assembly should be installed in mullion connected sections Steel supports and brackets should be on 60 in. centers (maximum). 1 Exam Prep Architectural Sheet Metal 5

6 9.24 Plastic Skylights Ch. 10: Interior 10.1 Starts Chapter Architectural Sheet Metal Elements 10.2 Column Covers 10.4 Corner Guards 10.8 Partition closure shown in figure 10-4a is used to finish off a masonry type partition. This is fabricated of minimum 20 ga paint grip. Steel and anchored to the structural column through the column closure Linen and trash chutes Ch. 11: Other Metal 11.1 Elements Starts Chapter Roof Scuttles Snow Guards Ch.12: Historical 12.1 Starts Chapter. Restoration Cornices Formed Skylights Spires Appendix A: Thickness &Weight A.1 -A.5 Tables of Weight and Thickness of Various Metals A.6 Table A-8: Expansion of Building Materials A.7 Table: A-9: Metric Conversion Chart B: Applications B.1 B.10 Metal Application and Specification References & Specifications C: Galvanic C.1 Galvanic Corrosion Corrosion D: Sheet Metal D.1-D.8 Sheet Metal Roof Test Report Roof Test Report E: Custom E.1-E.11 Custom Fabricated Metal Roof and Specifications Fabricated Metal 1 Exam Prep Architectural Sheet Metal 6

7 F: Moisture & F.1-F.4 Moisture and Maintenance of Building Envelopes Maintenance of Bldg. Envelopes G: Scupper G.1- G.4 Scupper Sizing Sizing H: SMACNA H.1-H.6 SMACNA Reprints 1929 Standards Reprints 1929 Stds. I: Informational I.1-I.4 Additional Informal Publications Publications J: Mechanical J.1-J.8 Mechanical Fasteners Fasteners K: Soldering K.1-K.4 Soldering L: Fascia & L.1-L.10 Architectural Fascia and Coping Wind Test Reports Coping Wind Tests M: Joint M.1-M.10 General Guide to Joint Sealants for Architects Sealants 1 Exam Prep Architectural Sheet Metal 7