CopperCraft CHESXCP Instructions / Assembly
Contents
1. Architectural Sheet Metal Manual e Seventh Edition 1 61 2 FROH COPPER CRAFT FABRAL SCUPPER DESIGN AND INSTALLATION Figure 1 26 illustrates a typical installation of a scupper in a parapet wall discharging into a downspout through a conductor head The conductor head should be a mini mum of 2 in 50 mm overall wider than the scupper Figure 1 26A shows a section through the parapet wall at the scupper A conductor head is attached to the wall with masonry fasteners Overflow openings in conduc tor heads Figures 1 25B and 1 25C are recommended for use in heavy icing areas and for drains that may be come plugged by leaves or excessive debris Where conductor heads without overflow are used set the rim of the head 1 in 25 mm below the scupper A closure flange is locked to the scupper and soldered or sealed at the top as shown in Detail 1 and should be at a minimum 1 2 in 12 mm wider than the conductor head on each side Coated steel or aluminum and PVC bond coated steel are acceptable materials Sealants are acceptable if flashing through the wall is U shaped with no seam at the bottom The preferred materials for this application are stainless steel and copper with so2. ater EE 3 oprette ZZ 1013 i i FIG 1 27A Architectural Sheet Metal Manual e Seventh Edition 1 65 FROH COPPER CRAFT FABRAL SCUPPER THROUGH FASCIA WITH CONDUCTOR HEAD Figure l 28 illustrates a typical installation of a scupper through a raised roof edge and gravel stop discharging into a conductor head and downspout Overflow open ings in conductor heads Figures 1 25B and 1 25C are recommended for use in heavy icing areas and for drains that may become plugged by leaves or excessive debris The conductor head should be a minimum of 2 in 50 mm wider than the scupper Scupper is fabricated with a flange which extends onto tapered edge strip and back 4 in 100 mm on roof Conductor head may be fitted around scupper as shown 1 66 Architectural Sheet Metal Manual Seventh Edition CHON JUN 15 2015 11 51 ST 11 38 Ho 9301966465 E FIGURE 1 28 in Section A A or may be locked to scupper as illus trated in Alternate Section A A Conductor head is an chored to the nailer through the gravel stop All bare metal joints are soldered except in aluminum construction In aluminum construction welded joints are used A compatible sealant is used on precoated metal joints Conductor head gravel stop
3. AS SEET AVAVAVAVAVAVAVAVAVAVAVAVAVAVADA 1 De e Hittin ta BA E VAR 0 EE Bet ES do PAR ETA TA i AE IA Z SO e Ta 4 A silicio 7 gt aa PS SE k Rehab E EE E egen alado A VX L bn L AL L A FIG 1 26A 4 100 mm SOLDER OR SEAL Ke 4 100 mm DETAIL 2 ALTERNATE FIG 1 26B maes aa FIGURE 1 26 SCUPPER DESIGN AND INSTALLATION Architectural Sheet Metal Manual e Seventh Edition 1 63 4 FROH COPPER CRAFT FABRAL SCUPPER DESIGN AND INSTALLATION Figure 1 27A illustrates a scupper in a parapet wall with the discharge flow directed through the back of a con ductor head An overflow opening is provided in the conductor head face Its elevation is set to avoid pond ing on the roof in case the downspout is plugged Flash ing and sealing of the roof side of the scupper is the same as in Figure 1 26 The conductor head is posi tioned against and supported from the wall The ter mination of the scupper is made watertight at the con ductor head Sealant is applied where the top flange of the conductor head abuts the wall and also is used as 1 64 Architectural Sheet Metal Manual a Seventh Edition CHON JUN 15 2015 11 49 ST 11 38 Ho 9301966465 E FIGURE 1 27 necessary to prevent water from
4. downspout and scupper should be fabricated of the same material A gravel stop is fastened to the floor of the scupper Rec ommended minimum for construction of scuppers is 24 ga 0 701 mm galvanized steel 0 040 in 1 016 mm aluminum 16 oz 0 55 mm copper or 26 ga 0 477 mm stainless steel or coated metal T Ei EA EEES El RA ben itn AA ee MES SAD RA EA AN DEE ENEE GC AAA A ar ANSA A ETA KEH i ron ie EEN FROH COPPER CRAFT FABEAL CHON JUN 15 2015 11 52Z2 ST 11 38 Ho 9301966465 E KE GRAVEL STOR FLASHING PERFORATED GRAVEL STOP 4 100 mm Waat ERR CENAS CLS Ek j d v i A j Eat ih EE See MASSA O An AN W W W W W N d TAPERED EDGE STRIP SCUPPER SCUPPER GE inda all sem a ca ta CONDUCTOR HEAD CONDUCTOR HEAD ALTERNATE SECTION A A SECTION A A eras FIGURE 1 28 SCUPPER THROUGH FASCIA WITH CONDUCTOR HEAD EE a MACNA Architectural Sheet Metal Manual e Seventh Edition Kn
5. entering the wall open ing around the scupper Figure 1 27B shows an alternate semi concealed scup per outlet with increased overflow capacity in the con ductor head The edges of the head must be suitably stiff and the bottom may be flat with about 2 in 50 mm pan depth depending on size The roof side of these scup pers is made as shown in Figure 1 26 Local code may dictate elevation of the conductor head overflow See the scupper design guidance in Appendix G TERE SS LEE EAE A ARE LE Aere E TES CHT SR As GE Ze EE Geh e AC eene Zo La RG lee deht b ie dEr DEE Ee EUDES LL AR ei EES FE Aere CAE AN Ee AIi FROM COPPER CRAFT FABEAL CHON JUN 15 2015 11 49 ST 11 38 Ho 9301966465 E e W NOMINAL WIDTH OF PARAPET WALL H i E H i H i 1 1 i 1 1 i i i H i i i i i H i l CHE R
6. FROM COPPER CRAFT FABRAL CONDUCTOR HEADS TYPICAL Conductor heads are used to collect water from scup pers or gutters for discharge into downspouts Figure 1 25 illustrates some of the many designs used for conductor heads It is recommended that the depth of its top opening equal of its width tubes these can be varied to conform to the shape of any selected downspout The outlet tube should have a minimum length of 4 in 100 mm The overflow indicator openings shown in Figures 1 25B and l 25C are recommended for use in heavy i ing areas and for drains that may become plugged by leaves or other debris to indicate that the drainage is ob structed Overflows may be incorporated in any of the conductor heads shown If built in overflow is not used set the top of the conductor head 1 in 25 mm below 1 60 Architectural Sheet Metal Manual e Seventh Edition CHON JUN 15 2015 11 45 ST 11 38 Ho 9301966465 E FIGURE 1 25 the scupper to permit overflow The use of the remov able screens with conductor heads is optional Conductor heads and downspouts should be fabricated of the same material The recommended minimum for construction of conductor heads is 24 ga 0 701 mm galvanized steel 0 032 in 0 812 mm aluminum 16 0z 0 55 mm copper or 26 ga 0 396 mm stainless steel or coated metal using the thickness listed for the base metal Conductor heads should be installed according to meth ods outlined
7. Rectangular shapes convey more water per inch mm of water depth on the roof than round shapes See scupper design guid ance in Appendix G The performance of rectangular shapes probably approximates that of a broad crested wei Standard equations for channel flow are based on test models larger than typical roof scuppers While downspout sizes normally are based on draining a given area of a roof that flow rate may not pass through a scupper sized to have a cross sectional area equal to the downspout area 3 ia e EA A Sp EE pe d gaz ed ET Ee eer Ae ete ee Si nat Ni FROM COPPER CRAFT FABRAL KHMOHJ JUN 15 2015 11 48 ST 11 38 Ho 9301966465 E 1 2 12 MM MIN PAST CONDUCTOR HEAD SEAL EE PERFORATED GRAVEL STOP 1
8. in Figures l 26 1 27 and 1 28 The typi cal proportions of conductor heads are Face width 3 to 4 times downspout width Face depth 2 times downSpout width Height 3 to 4 times downspout width 1 A Keng EE AR E a E ENEE E Staats mary Sh Coe adhe ieee Nae po A IA SEA ia ie q Eben blas SAME Ze dee ER Ga os o ir H E d pad EEN EE e g kera EM 3 s ue E KR e Ste FROH COPPER CRAFT FABRAL l i i i plenos ancee reat ia EE i is 40054842 EES OG O gier AO FIG 1 25C KHMOHJ JUN 15 2015 11 45 5ST 11 38 Ho 9301566465 P EE
9. ldered seams and joints If aluminum is used this joint is sealed rather than sol dered The junction between the top of the closure flange and the masonry wall is sealed which will require continu ous maintenance Detail 2 shows an alternate method at the scupper outlet using a loose lock connection to the conductor head 1 62 Architectural Sheet Metal Manual e Seventh Edition CHON JUN 15 2015 11 47 ST 11 38 Ho 9301966465 E FIGURE 1 26 Figure 1 26B shows the scupper from the roof side A flange is formed and soldered to the scupper prior to its insertion into the wall If aluminum is used the flange must be welded or seamed and sealed Gravel stop angle is fastened into place in scupper prior to installa tion To reduce the water dam effect that gravel stop angles Create they should be notched or perforated Scupper d whspout closure flange and conductor head should be fabricated of the same material The recommended minimum for construction of scup pers is 24 ga 0 701 mm galvanized steel 0 032 in 0 812 mm aluminum 16 oz 0 55 mm copper or 26 ga 0 477 mm stainless steel Not all scuppers require flange trim on the face such as those in precast concrete wall panels In such walls 6 x 6 in 152 x 152 mm Atte 100 mm diameter and 5 in 127 mm diameter sizes are common All penetra tions are sealed The size and number of scuppers should be carefully de termined to control ponding on roofs
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