The URL can be used to link to this page

Home My WebLink AboutFEMA COMPLAIANT ENGINEERED FLOOD VENTSFEMA COMPLIANT', ENGINEERED FLOOD VENTS FLOOD SO�LUTIONSTM MODEL " f" BLADE .WITH STORM' DRIP RODENT SCREEN INSECT SCREEN BLAD STORM DRIP I - IWATER MOUNTING ,. STOP (HOLES WATER STOP 1� . I OVERLAP WALL FLANGE 1 1/4" FEMA Compliant Engineered Flood Vents meet FEMA requirements when installed properly. • Use at least 2 flood vents per enclosed area below flood grade, installed on at least two separate walls. • The bottom -of the flood vent opening must not be higher than 12 inches above the grade. • At least 1 square inch of engineered opening for every ,'square foot of enclosed space. • An engineered certificate from the state in which the building.is located is required for all engineered openings without ICC-ES certification. t Qty Model Minimum Opening Required Engineered Opening _Covers 1412-F 14-1/2"Wide x 12"High 145 sq ft 1608-F 16"Wide x 8" High 124 sq ft 1616-F 16"Wide x 16"High 221 sq ft 2412-1` 24"Wide x 12"High 274 sq ft 2416-F 24"Wide x 16"High 362 sq ft 3208-F 32"Wide x 8"High 252 sq ft Finishes Black Kyn.ar Light Grey Kynar Light Tan Kynar White Kynar No Finish (for field painting) Frame: 1-1/4" DEEP, 1" Front Flange; heavy gauge extruded aluminum sections, minimum .125" thickness Blades: Heavy gauge extruded aluminum sections, minimum .063"'thickness Construction: Extruded aluminum sections mechanically fastened Insect/Rodent Screen: Heavy-duty aluminum insect & rodent screen; rear mounted FLOOD SOLUTIONS, LLC. One Industrial Park Drive Bldg. 27 PROJECT: Pelham NH, 03076 Toll Free: 1-800-325-9775 CONTRACTOR:. In NH: 603-595-5222 Fax:603-595-4778 RETAILER: www.floodsolutions.com info@floodsolutions.com DATE: ®� CERTIFICATION OF ENGINEERED FLOOD OPENINGS (FEMA T13-1 August 2008) I do hereby certify that the FLOOD SOLUTIONS LLC Flood Vent properly installed and sized in accordance with Federal Emergency Management Agency's (FEMA's) National Flood Program regulations is designed to automatically equalize hydrostatic flood forces on exterior walls by allowing for entry and exit of floodwater during floods up to and including the base 100=year flood. I also do hereby certify that I calculated the Non Engineered Net Free Air and Engineered Opening size for each model and size of FLOOD SOLUTIONS LLCflood vents. The results of the calculations are recorded in the table below. The Engineered size opening calculation was performed using the formula in FEMA Technical Bulletin 1— August 2008, Openings in Foundation Walls for Buildings Located in Special Flood Hazard Areas in accordance with the National Flood Insurance Program (NFIP) and ASCE/SEI 24-05, Flood Resistance Design and Construction. I measured the Non Engineered Net Free Air by calculating the minimum distance between the top blade and the top of the vent times the clear opening width of the vent; plus the minimum distance between the bottom biade'and the bottom of the vent the clear opening width of the vent; plus the minimum distance between each blade times the number of spaces between the blades in vent times the clear opening width of the vent. I used the formula in TB 1— August 2008 (A° = 0.033 [1/C] RA@) to determine the Engineered Opening size for each model listed below. I used the following assumptions: A° = total net area of openings required (inz); 0.033 = coefficient corresponding to a factor of safety of 5.0 (In' hr/f 3); c = 0.40 opening ^ coefficient (ASCE 24 Table 2-3 "rectangular, long axis horizontal, shoit axis vertical unobstructed during design flood") or C= 0.35 (square unobstructed during design flood); R = 5 ft/hr worst case rate of rise and fall; and A@ =1 ft2 total enclosed area. - Note: When the horizontal dimension is twice or more the vertical dimension, use 0.4; as the dimensions approach a square, interpolate from 0,4 to 0.35. AO / Ad = 0.033 [1/C] R = 0.033 [1/0.40 for rectangle, long axis horizontal] = 0.4125 inz per ft2 or AO / Ad = 0.033 [1/C] R = 0.033 [1 / 0.35 for square] = .4719 inz per ft2 Each individual opening, and any louvers, screens, or other covers, shall be designed to allow automatic entry and exit of floodwaters during design flood or lesser flood conditions; there shall be a minimum of two openings on different sides of each enclosed area; if a structure has more than one enclosed area below the DFE, each area shall have openings; openings shall not be less than 3 inches in any direction in the plane of the wall; the bottom of each required opening shall be no more than 1 ft. above the adjacent grade; the difference between the exterior and interior floodwater levels shall not exceed 1 ft. during base flood conditions; in the absence of reliable data on the rates of rise and fall, assume a rate of rise and fall of 5ft/hr, where data or analysis indicated more rapid rates of rise and fall, the total net area of the required openings shall be Increased to account for the higher rates of rise and fall. MODEL Number Flood Solutions: SIZE of OPENING: (WIDTH X HEIGHT) Net Free Air (square inches): ENGINEERED OPENING Each vent covers: (square ft.) 1412-F 14-1/2" x 12" 67 145 1509-F 1611x 9-1/2" 55 131 1608-F 16" x 8" 51 224 1608-D 16" x 8" 51 124 1608-C 16" x 8" 65 158 1616-F 16" x 16" 104 221 1616-D 16" x 16" 102 216 2412-F 24" x 12" 113 274 2412-D 7-411x 12" 110 267 2416-F 24" x 16" 156 362 2416-D 24" x 16" 154 357 3208-F 32" x 8" 104 252 3208-D 32" x 8" 1 104 252 SIGNATURE: NAME: DANIEL G. FARABAUGH TYPE OF LICENSE: PROFESSIONAL ENGINEER STATE: FLORIDA LICENSE NUMBER: 48349 DAN FARABAUGH, P.E. FARABAUGH ENGINEERING AND TESTING, INC. 401 WIDE DR., McKEESPORT, PA 15135 PHONE:412-751-4001 FAX:412-751-4003