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Engineering - Alumawood Flat Panel Awnings |
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ENGINEERING The engineering for thiese kits is based off of Amerimax engineering. Kits may be freestanding or attached. Permits may be required in your area. Rontimco can help with this but customers are responsible for their own permits. It is reccommended that you get the engineering and your plans approved by your local building department prior to purchase or installation. | Slope | The minimum slope of the roof panels along the projection is 1/2 inch per foot. | | Wind Load | Most kits will have a wind load of 90 mph but we can accomodate up to a 110 mph. kits are engineered to exposure B or C areas. Most will be B which refers to urban or suburban areas, wooded areas, or other terrain with numerous closely spaced obstruction having the size of single-family dwellings or larger. | | Snow Load | Snow loads are given in pounds per square foot and range from 10 to 60 PSF. This measurement is also referred to as live load. In most cases even light snow areas will begin at a 20lb load. A 10lb load is for areas that receive no snow. Please contact your local building department to verify the snow load for your area. | | Post Spacing | The max post spacing is indicated for each kit after it is added to the cart. The side overhang (from post to end of header) cannot exceed 25% of the actual post spacing. | | Length | Length will be as selected in 1 foot increments. The distance from side to side. The Fascia cover wrap will increase the length by approximately 4 inches. The length cannot be less than 75% of the projection. So for a 10 foot projection you couldn't have less than a 7.5 foot length. There is no limit to how long these kits can be. | | Height | This is the distance from the ground to the bottom of the header. In other words this is the post height. | | Projection | The distance from the house to the gutter/fascia not including 12 inch rafter tails (if applicable). In the case of free standing structures it is the distance from the fascia/gutter to fascia/gutter. | | Clear Span | The distance from the house to the 3x8 inch Header Beam or in the case of a freestanding unit from beam to beam. | | Overhang | The distance from the 3x8 inch Header Beam to the fascia/gutter. (not including 12 inch rafter tails) | | Permits | If a permit is being pulled, customers are responsible for getting these plans and the engineering approved by the local building department or appropriate organizations. For accurate requirements for snow and wind loads, please contact your local building departing or authority. |
SUPPORT BEAM AND HEADER TYPES
| 3x8 inch Alumawood Header Beam | This header will be approximately 6 inches less than the length selected. It will attach directly to the Flat panels and be supported by the posts. This comes with all kits. | | 3x8 inch Steel C Beam | If selected this beam will slide into the 3x8 inch Alumawood Header Beam and be concealed from each end with end caps. This beam is constructed of 12 gauge steel and when used with posts into poured footings, is capable of larger snow loads and post spacing. This Beam comes in stock lengths or 20 or 24 feet and may need to be trimmed to fit your needs. |
POST TYPE AND GROUND ATTACHMENT | Concrete Slab Attachments | Awnings that will be attached to a concrete slab will come with Aluminum Cloverleaf posts insert that are 3 inches by 3 inches and are 0.040 inches thick. They will slide into the Alumawood post to provide extra strength. All hardware and brackets are included for this type of mounting. Remember to keep several inches away from the edge of your slab to avoid cracking your concrete. | | Wood Deck Attachments | Awnings that will be attached to a wood deck will come with Aluminum Cloverleaf posts inserts that are 3 inches by 3 inches and are 0.040 inches thick. They will slide into the Alumawood post to provide extra strength. The brackets for a wood deck attachment will be included but the Lag screws or bolts will not be included. Please see Wood Deck Attachment Engineering for appropriate lag screw and bolt descriptions. | | Footing Attachments | Footings must be poured with a Cloverleaf post being embedded into the concrete. For this reason your quote will indicate a post size that is 2 feet longer than the awning height. This extra 2 feet on the cloverleaf post is intended to be used in the footing. The Alumawood post will slide over the Cloverleaf post. The alumawood post will not be embedded into the concrete – only the Cloverleaf post. The Cloverleaf post is 3 inches by 3 inches and constructed of 0.041 inch thick steel. No brackets or bolts are needed for a footing attachment. Customers must provide the concrete and steel bar for reinforcement for each footing. Each quote with a footing attachment will indicate a footer size. This amount should be cubed for each footing. Please see Footing Engineering for footing details on post depth and steel bar reinforcement. |
HOUSE ATTACHMENT TYPE
| Wall Attachment | If an awning is to be attached directly to the wall, the wall should have a stud spacing of 16in on center. If this is chosen, 4 inch lag screws will be sent with the kit to attach the C hanger to the wall. Engineering requires at least 2-1/2in embedment into the stud. | | Ledger Board | If the studs are spaced greater than 16in on center, customers should utilize a ledger board. Engineering requires 2 inch thick ledger boards. For most places a 2x6 or a 2x8 is acceptable. Use # 2 Douglas fir or better. Customers are responsible for the ledger board and its attachment to the house. The C hanger will attach to the ledger board with 2 inch screws that will be included in the kit. | | Eave Attachment | Eave attachments require a 2 inch wide fascia. The fascia should be reinforced using Simpson bracket A34 on the back of the fascia to the side of the rafter. Eaves are allowed a certain amount of over hang per snow load and projection. See Eave Engineering for details. The C hanger will attach to the fascia board with 2 inch screws that will be included in the kit. |
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