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Anderson, LeRoy Oscar (28 Nov 1992). Wood-frame House Construction. USA: Craftsman Book Company. p.35. ISBN 9780934041744. A connector for connecting wall studs of two adjacent floors in a light frame building structure, the connector having a first attachment tab, a seat member, a diagonally slanted support leg, and a second attachment tab, all substantially planar. The connector is intended to be paired and the paired connectors joined by an elongated tie member that pierces the sill plates of the intervening floor structure. It is recommended to install hurricane ties on the outside of walls, utilizing the rafter tails and wall sheathing for added support.
Keep in mind that the load capabilities will vary depending on the manufacturer of the tie and the material that it's made from. After drilling the pilot holes, you can now secure the hurricane straps to the roof trusses with screws. To do this, follow these steps: Twist straps provide a tension connection between two wood members. They resist uplift at the heel of a truss economically. When the strengthening is being done from the inside, the ideal connector to use is one that connects rafters or trusses directly to wall studs. This can only be done where the rafter or trusses are immediately above or immediately to the side of studs below. In that case a twist strap connector can be used. [8] Floor span connector [ edit ]
How to Install Hurricane Straps on An Existing Roof
Hurricane-threatened states like Florida and Louisiana and certain coastal and tropical areas have local building codes. These jurisdiction requirements usually offer specific instructions for installing hurricane ties and roof retrofitting.
When installing hurricane ties yourself, ensure that you follow these safety precautions to prevent an accident:Delivery will be made to the location that you designate. It is your responsibility to ensure that a responsible person is available to accept the delivery and to secure the goods at the delivery location. The Company shall not be liable for any damage or fault arising from incorrect storage of the goods. If you or the intended recipient are not available when the Metro Fixings delivery driver/parcel carrier attempts delivery, a delivery card will be popped in your letter box. Please follow the instructions on the card to rearrange delivery. Alternatively, please call our Sales Team on 01707 375172 and we will be able to assist with a second delivery attempt. Each connection will need its own hurricane tie for reinforcement. Specifically, you’re looking for spots where the diagonal truss meets a horizontal beam running to the roof. The hurricane tie will be fitted to these two pieces of wood, creating a continuous load path. Hurricane ties have different specifications, and one of the most critical ones is the weight capacity. Choosing a tie that is designed to hold less load than the actual weight of your roof could mean terrible results in a storm. However, installing them on the inside may be necessary for certain retrofits or unfinished spaces.
A connecting tie that provides a continuous structural load transfer path from the top of a building to its foundation, helping to protect buildings from damage resulting from high wind. These devices are primarily used in areas affected by high winds including hurricanes but are generally suitable for any area that may be impacted by windstorm damage. They are also known as hurricane ties [4] or strips; Simpson Strong-Tie manufactures approximately 20 different models of hurricane ties, not counting twist straps, other clips, or the new fully-threaded SDWC screws often used in the same applications. This assortment of models raises the question, “How do you select the right one?” Both trusses and rafters can be used to create the roof of a building. While they function similarly, they have unique differences that affect how they attach to the supporting walls. In many cases, it is preferable to install hurricane straps during construction once the frame of the house has been completed. In other instances, hurricane straps can be installed during a roof replacement or re-roofing. Hurricane ties come in different shapes and dimensions. It’s essential to choose one that will suit the joint it’ll be used for as well as possible. If the roof’s trusses or rafters will fit into the strap, you’ll need to measure the width of the beams to ensure that they can fit into the opening.
Besides the added benefit of fewer connectors to install, using a single hurricane tie from your roof framing to your wall studs can eliminate top-plate roll, a topic discussed at length in one of our technical bulletins . Other Factors When Selecting Hurricane Ties
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