</p>. Minimum of 3/8-in. Reference Series: MSTCB series. Rafter ties shall be not less than 2 inches by 4 inches (51 mm by 102 mm) (nominal), installed in accordance with the connection requirements in Table R802. 844 553. 47. $9. Use hurricane ties to securely attach trusses to the wall plates. Norbord even offers sheathing in lengths up to 12 feet 1 1/8 inches. 1483-inch (3. More Results. Avoid directly nailing interior walls to trusses, unless the truss is designed for bearing. Material: 20ga (33mil), 0. Galvanized (G90) for extra corrosion resistance. The (cap) top plate started to seperate from the lower top plate. Note if the strap were on top of the sheathing they would get in the way of the roofing nailing. Step 3: Follow the steps in the Description Tab to install lateral bracing as required. through the top plates. o 58″ for 12′ walls. A35 Studs to Plate Condition; A35 Joist to Beam Condition; CS/CMST14 – Coiled Strap Installation; CSHP – High-Performance Coiled Strap Installation; H1A – Hurricane Tie Installation. 5A resists both lateral and uplift loads. The SPH is a heavy U-shaped strap designed as a stud-to-plate connection to resist roof uplift. Don’t forget to leave 1/8″ gap between panel ends. 4. A second closely related weakness is the support/anchorage of roof overhangs at the gable end. The total cost of damage is estimated at $1. specifies the minimum sheathing thickness for framing spaced 24 inches on center based on exposure category and wind speed. Inserted over the edges of adjacent plywood panels, the PSCL reduces deflection and keeps panels even to maintain a level plane on the structure. Here are a few examples: Alabama: Hurricane ties are required on all new homes, with no more than 30 nails used per tie. While ring shank nails are still required, the nail size depends on the sheathing thickness. Structural I sheathing is a PS-2 grade of wood structural panel that has higher cross-panel bending and racking/shear strength than the conventional sheathing grade. 5- to 3-inch-deep layer to all joints between sheathing, all intersections between roof sheathing and roof framing members, and all valleys. Hurricane Ties on adjacent studs to transfer roof load from top plate to wall studs. When installed on the forms with the StrapMate ® strap holder, the unique design of the STHD delivers enhanced stability before H8. Install in pairs on either side of the rafter/truss/joist to provide resistance to uplift and lateral forces. H2. Provides a connection between the truss or rafter and the wall of the structure that helps resist wind and seismic forces. 2. Concrete and clay tile shall be installed only over solid sheathing or spaced structural sheathing boards. These are inexpensive and are a good precaution to use wherever high winds may be a problem, especially in zones where hurricanes and tornadoes are common. Designed for use with these Quik Drive Attachments-. H14. Because hurricane clips do a better job of protecting homes against hurricane-force winds, several Gulf States require them in new construction in addition to Florida. You need to get into the attic of your roof using a ladder and inspect the connections between the diagonal beams and horizontal beams. I had used simpson h-1 hurricane ties to attach the roof trusses, but these ties didn't extend far enough below the lower top plate to make a difference. The Strap Lap Splices table provides the minimum splice length (Lsp) and fasteners, within the splice length, to achieve the highest allowable capacity of the strap. We' Nov 8, 2007 · Hurricane ties are hardware pieces that connect the joists to cantilevered beams to reduce uplift forces caused by high winds. Firstly, c ut the plywood to the desired size. Rafter Condition; Truss Condition; H2. So what happened? The barn was rectangular in shape, measuring 120 ft. This tie is a cost-effective option when properly installed before the Where ceiling joists are not parallel to rafters, rafter ties shall be installed. STARTING AT. Current building codes do not include the most efficient way to keep houses standing and intact ETROFITS FOR EXISTING SITE-BUILT SINGLE FAMILY RESIDENTIAL STRUCTURES101 Retrofits Required. This heavy U-shaped strap has a horizontal portion that bears against the wood wall top plates or sill plates and two vertical legs that are nailed to the edges of a wood stud. 0336 by 1 inch (0. By applying adhesive from within the attic in this area, you are helping to hold down sheathing over the living area, even if it begins to tear loose at the overhang. This light sheathing clip provides a 1/8" gap to address shrinkage and expansion of roof sheathing. Pursuant to Section 553. 13 of this code. For us, the primary advantage of longer sheathing panels is a big reduction in labor. These metal (steel) connectors are crucial for securing wood-to-wood, wood-to-masonry or wood-to-concrete connections. 5T resists both lateral and uplift loads. Usage of Hurricane Ties is essential for code compliance in many regions. <p>Wood construction connectors are specifically designed to provide support for applications in wood structural systems. HTU Face-Mount Truss Hanger. LP WeatherLogic Air & Water Barrier provides more Concrete and clay tile shall be installed only over solid sheathing or spaced structural sheathing boards. The presloped seat simplifies installation and improves performance. The H10A series holds the rafter or truss on both sides for high uplift applications with embossments that add stiffness in crucial areas for improved performance. Provides a connection as part of a continuous load path to resist wind and seismic forces. R905. Method WSP is also shown in Detail 1 of detail sheet WBW1 in our wall bracing detail sheets. Simpson Strong-Tie H1. In order to do so, your contractor will have to cut out sections of the siding and wall sheathing or remove the roof sheathing at the eves. Gypsum sheathing is a type of sheetrock meant to be used in exterior applications. Hurricane Iniki claimed six lives. Where ceiling joists or rafter ties are Oct 5, 2023 · If there's a rafter tie (a horizontal member spanning from one exterior wall to its opposite exterior wall) in the way, then butt the top plate into the rafter tie and continue on its other side. Remove The Soffit Outside Of The House. H C = Height of ceiling joists or rafter ties measured vertically above the top of the rafter support walls. While many hurricane ties have been evaluated with 8d x 1½” nails for compatibility with nominal 2x roof framing, some require the use of a longer, 8d common (2½” long) nail and others require a larger-diameter 10d nail. In newer construction, metal straps or metal hurricane ties were added that anchor the trusses or rafters to the top plate and Oct 31, 2011 · The bulge is a visual issue that I doubt would be noticable after the shingles are in place. Collar ties shall be not less than 1 inch by 4 inches (25 mm by 102 mm) (nominal), spaced not more than 4 feet (1219 mm) on center. Some here have Oct 24, 2002 · In that case, only every third truss will fall directly over a stud, which precludes using simple "clips". 5/12 pitch and a vented roof assembly. 5 ties are crucial for securing your roof during a hurricane or high winds, even though they seem insignificant. PRO250. The first and most common area of weakness is the fastening of roof sheathing. 1(9), or connections of equivalent capacities shall be provided. Its durability, resilience, and longevity make it a top contender for areas prone to high winds and severe weather conditions. 884, Florida Statutes, strengthening of e. 1. Provides faster installation than using two single-sided ties. Walls continuously sheathed in plywood or OSB also provide an excellent nail base for brick ties, siding and trim. 3 in the Hurricane Mitigation Manual, residences are exempt: (1) When the just valuation for the structure for purposes of ad valorem taxation is less than $300,000. Toe nail the rafters down to the beveled The STHD is an embedded strap-tie holdown offering high load capacity and a staggered nail pattern to help minimize splitting. As part of a continuous load path, the H2. <p>Straps and ties are designed to resist tension forces between two members. In contrast, hurricane ties outside the framing are visible, providing easier installation and faster inspections. First, you need to tie the roof rafters to the walls because high winds like to lift roofs. This is the panel that goes between the roof’s eaves and the walls of the home. Windstorm lengths are available from 97 1/8″ up to 145 1/8″ in 7/16 and 15/32 thickness categories. These essential metal connections provide strength, versatility and reliability in various applications for both wood and steel. . HTU Installation | Simpson Strong-Tie. Examine your roof for diagonal beams. Be sure that the hurricane ties and fasteners are compatible This light sheathing clip provides a 1/8" gap to address shrinkage and expansion of roof sheathing. 2 Deck Slope Clay and concrete roof tile shall be installed on roof slopes of two and one-half units vertical in 12 units horizontal (2 1 / 2 :12) or greater. 101. 3. zipsystem. Collar Beam A horizontal tie beam in a gable roof, connecting two opposite rafters at a point considerably above the wall plate. The damage to single family residences and contents in the homes totaled $865 million (based on insurance claims made), which is about half of the above figure. Please visit www. The PSCL is designed to brace unsupported sheathing edges when sheathing meets edge to edge without a rafter for support. Huge savings for one detail. Trusses contribute to building safety in hurricane-prone areas by providing a strong, stable, and wind-resistant roof structure. The only way to know these things is full scale testing. The unique design of the HPT connects the wall to the rafter, avoiding interference from the blocking. Jun 20, 2018 · When a house gets blown apart in a hurricane, you don't know what failed first. RT20 shown. 10. 5A. Top plate rotation is still unrestrained. 3(1). Central Pacific Hurricane Center 2525 Correa Rd Suite 250 Honolulu, HI 96822 May 7, 2020 · Panels are commonly available in 9- and 10-foot lengths, with some manufacturers offering 9 feet 1 1/8 inches and 10 feet 1 1/8 inches. Inserted over the edges of adjacent plywood panels, the PSCL reduces deflection and keeps panels even to maintain a level For SI: 1 inch = 25. The Strong-Tie H1. This brings up our wind load capacity plus earns the homeowner a good 25% off or more from their premiums. The H16 is a high-capacity hurricane tie that connects trusses to the top of wall plates in wood framing walls. 018 rad. Perhaps Simpson knows of their connectors being used incorrectly. 5T – Hurricane Tie Materials that form the external covering over the structural elements and are directly loaded by the wind; includes roofing, roof sheathing, siding, wall sheathing, and window glazing. You can use screws or gap spacers to get this job done. Strong-Drive SD screws. structural sheathing panels are required for gable end walls. Jan 1, 2021 · Step 1. o. Two hurricane ties for roof to top plate and to stud to top plate connections. This article will explain the different terms for hurricane Figure 3: The distance between the hurricane tie and the rod restraint creates an eccentric loading condition, causing top plate rotation and reducing the uplift load that the system is capable of transferring. Jun 6, 2018 · The barn’s hurricane ties were intended to secure the roof to the top of the walls and prevent exactly what occurred. Simpson PSCL 1/2-R50 - 1/2" Plywood Sheathing Clips. 853 by 25 mm) or, if made of wire, not smaller in diameter than 0. We stock a full selection of Strong-Tie post bases, joist hangers, holdowns & more. 0329" Minimum thickness Coating: G90 (Z275) hot-dipped galvanized coating Yield Strength: Structural Grade 50 Type H (ST50H), 50ksi (340 MPa) The spray adhesive is applied to the underside of the roof in the attic in a 1. Sep 25, 2020 · 1. Gypsum Exterior Wall Sheathing. The HTU face-mount truss hanger has nail patterns designed specifically for shallow heel heights, so that full allowable loads (with minimum nailing) apply to heel heights as low as 3 7/8". Eliminates unreliable wood blocking. h. Hurricane straps are a more efficient and safer replacement. In typical construction, siding, trim and brick ties are attached to framing members. Connections made with hurricane ties help to establish a continuous load path from roofing to foundation. 4 mm, 1 foot = 305 mm, 1 degree = 0. 1 billion in 2015 dollars). long by 60 ft. More information is available in the installation section below. The technical note is undoubtedly correct. These connectors are engineered to resist increased loads due to high-wind or seismic events, and are available for both wood and steel applications. Provides full open-wall cavities that allow for faster and better insulation. 8 billion dollars (or $3. 5. Doing this means you can go to the hardware store and be sure that you are buying the right amount of clips. Shop our selection of Simpson plywood sheathing clips. Hurricane straps and clips really do help to keep roofs on during high wind events, but they are extremely difficult to retrofit. Using the appropriate fasteners and following the manufacturer's guidelines closely The same WRB and air barrier properties are the same for R-Sheathing as they are for conventional ZIP System sheathing. 81Z Hurricane Tie features a G185 ZMAX galvanized finish for added corrosion resistance and requires the use of hot-dip galvanized fasteners which meet the specifications Apr 6, 2024 · After the sheathing has been installed, cover the seams with the recommended tape for that specific foam to help seal the boards properly and prevent any moisture infiltration between the boards. Use a framing hammer to drive nails through the truss and into the top plate of the side wall. Install hurricane ties on the outside of the wall over the exterior side of WSP sheathing (see Figure 2). Hurricane ties inside the framing are concealed, offering a better look and avoiding corrosion. 5T. Correctly installing a hurricane tie is paramount to their effectiveness. wood structural panels on both wall faces. Products and technology that help people design and build safer, stronger homes, buildings, and communities. If sheathing has not been re-nailed, use wood blocking with adhesive to make a strong connection between the sheathing and the rafter or truss at the gable end rafter or truss Nov 8, 2016 · The wind could "bend" the sheathing and easily break it due to the angle of force. c. 81Z Hurricane Ties provide a positive connection between 1-3/4" LVL rafters and the top wall plate to resist wind and seismic forces. Roof sheathing for heavy timber construction shall comply with Section 2319. 7 Diaphragm Boundaries. Equivalent you could use a nail or a structural #9 wood screw. One of my questions is how to get a good seal around the all of the hurricane ties without a lot of fuss. Interior shear walls must be fully sheathed including areas above or below wall openings with minimum 7/16-in. Wall sheathing shall be continuous over three or more supports and shall be nailed to such supports with 8d common nails. o 53″ for 11′ walls. Sep 14, 2023 · 1. Collar ties or ridge straps to resist wind uplift shall be connected in the upper third of the attic space in accordance with Table R602. CHOOSE OPTIONS. One way this can be constructed is as a full ladder, with parallel fly rafter and ledger Nov 1, 2008 · FIGURE 1. Note: Where ceiling joist s run perpendicular to the rafter, rafter ties shall be installed in accordance with Section R802. Engineered trusses are often used in conjunction with hurricane ties. Clay and concrete roof tile shall be installed on roof slopes of 2 1 / 2 units vertical in 12 units horizontal (21-percent slope) or greater. The long straps of the H16 increase versatility, making it suitable for truss heel height up to 13 1/2". Where the sheathing thickness is 15/32 inches and less, roof Description: Strong-Tie Quik Drive CBSDQ sheathing-to-CFS screws are designed to fasten subfloor/sheathing to cold-formed steel with a max thickness of 16 gauge. tall walls and a gable-style roof with a pitch of about 4/12. p. Additional fasteners into the top plates and rafter or truss provide higher uplift. Figure 4: Sheathing and hurricane ties on opposing sides of the wall with rods at 48 inches o. Nov 5, 2023 · It is recommended to install hurricane ties on the outside of walls, utilizing the rafter tails and wall sheathing for added support. wide with 16-ft. The symmetrical design eliminates the need for separate right and left parts. If made of sheet metal, veneer ties shall be not smaller in area than 0. The possible loss of sheathing nailing to the rafter should not be a concern unless the roof nailing was very close or unless you were in a hurricane zone. I finally ended up putting 1/2"x5" bolts 4'-0" o. The Allowable Loads for Alternative • Best hurricane tie performance when fastened directly to framing • Some inspection challenges may be introduced • Nails used to fasten sheathing to wall framing shall not be installed through underlying connector 3&frac12;&quot; Min. Jun 24, 2018 · Does anyone have a good technique for sealing the ceiling plane air barrier to the top plate when using scissor trusses and hurricane ties? We will have a sloped ceiling with a 2. ing attachment and fasteners shall be strengthened and corrected as requi. Properties that lie in any tropical weather ETROFITS FOR EXISTING SITE-BUILT SINGLE FAMILY RESIDENTIAL STRUCTURES101 Retrofits Required. 5. Then you should make sure the wall studs and/or structural sheathing is tied to the sill plate on the top of the foundation wall with Simpson strap ties/anchors. Metal roofs have fantastic wind resistance, with some systems being able to withstand winds of up to 150 miles per hour. Medium-capacity nail-on floor tie strap. That can be accomplished with Simpson hurricane ties shown in the link below. The HPT hurricane tie provides a key rafter-to-wall connection for retrofit applications located in Hawaii. Here in Alabama we use a similar system of construction, and our hurricane tie requirements are met by using a 16"-24" strap nailed into the truss (or rafter), the top plates, and the studs. Straps & Ties A35 – Framing Angle/Plate Installation. Unfortunately, the confusion doesn’t end there—other commonly misunderstood terms include single wrap, double wrap, and hurricane clips. These U-shaped hurricane ties provide faster installation than using two single-sided ties. Both styles of holdown employ the Simpson Strong-Tie® Strong-Drive® SDS Heavy-Duty Connector screws which install easily, reduce fastener slip and provide a greater net section when compared to bolts. The third most common area of weakness is at the bottom of the gable end Dec 1, 2003 · Not soon after, their were winds up to 95 m. Walls continuously sheathed with structural sheathing (OSB or plywood). The most commonly used tie here is the Simpson H1 tie. 76 mm) wire. May 23, 2024 · Opens in a new window. 5A – Hurricane Tie Installation; H2. Jan 25, 2017 · Single family residences are exempt from the requirements of strengthening the roof to wall connections when replacing an existing roof as required by section 201. A hurricane clip is used to decrease uplift damage in a hurricane that and nails connect the roof trusses to the top plate. Jan 10, 2022 · Retrofitting Hurricane straps means adding one or two 16d nails to the existing straps. Wood structural panels, including plywood and OSB, are recognized by the building codes for their strength and performance in wall construction. I provide them in pdf, dwg, and dfx format for your reference and use. Quantities: 50 250. The barn included cast-in-place concrete perimeter foundation Roof framing system with roof sheathing and sheathing attachment constructed to meet or exceed the following minimum requirements: Minimum 7 ⁄16-in. However, if the clip is on the outside, the sheathing will keep the top plate from separating because the sheathing would hold it down where the clip is. H10S. Only end trusses must be strapped, and two ties must be In older wood frame construction, the connection of roof trusses or rafters to walls is 2 or 3 sixteen penny (16d) nails driven at angles (toe nailed) through the rafter or truss into the top plate of the wall. The first step to installing hurricane straps on an existing roof is to remove the soffit on the outside of the house. Hurricane Ties are used as a connection between truss/rafters and walls to resist lateral and uplift conditions. Oct 1, 2023 · Metal roofing is an excellent choice for hurricane-proof roof design. 5T – Hurricane Tie Straps & Ties A35 – Framing Angle/Plate Installation. The H14 comes with a pre-bent flange that attaches underneath Apr 29, 2021 · What fasteners can be used with ZIP System wall sheathing? Fasteners approved for regular sheathing can also be used with ZIP System wall sheathing to attach panels to the frame. 2 Deck slope. Your sheathing and nails are going to connect your plates and your studs. Hurricane T-Shaped Strap. Key Features. Hurricane tie can be sized for all three loads per the manufacturer's specifications, however you'll normally toe-nail the truss on top of the wall to keep it in place so using toe-nails for lateral and shear make Jul 29, 2021 · Published: July 29, 2021 7:55am EDT. The hurricane ties secure the trusses to the walls, preventing uplift forces from detaching the roof. A brick veneer wall should be self-supporting on the home’s foundation, and should be firmly anchored to the wall sheathing. It comes in various materials, including vinyl, aluminum, and wood. The H8 is versatile and has been tested for connecting I-joist rafters to double top plates as well as studs to sill plates. -thick wood structural panels; Sheathing attached in accordance with one of the following fastening schedules: 8d common nails or 10d box nails at 4 in. 6. Screws are not recognized as an acceptable fastener for installing structural sheathing like ZIP System to wood framing. Begin by aligning the tie with the rafter or truss and the wall's top plate. 3. Gable End Overhangs: Ladder Outlooker Block Method. The other method commonly used to support the sheathing and the barge rafter is the ladder method. The H8 single-sided hurricane tie is designed to resist moderate loads at the top of a wall connection. 2716 with any questions or comments. The H2. An excerpt of Table R803. Structural Engineering Blog. The adhesive has an added benefit of sealing the joints of the roof deck to help prevent water intrusion. When specifying products for a continuous load path, it’s a good idea to select connectors that all use the same size Panel heights up to 12′. 5T – Hurricane Tie 2 days ago · National Hurricane Center 11691 SW 17th Street Miami, FL, 33165 nhcwebmaster@noaa. Follow the fastener schedule from IRC Table R602. Sheathing over hurricane strap Details and question in comment r/Carpentry, Simpson Strong-Tie H series of hurricane ties provide a positive connection between truss/rafter and the wall of the structure to resist wind and Chat. 4. Hurricane Tie. 0346" Design thickness, 0. nails or #9 x 1-1/2 in. 2 is shown in the next column. Meets minimum head diameter requirement per AISI S213-07. They should also be fastened to the side of the vertical gable end wall studs with #8 wood screws or 10d nails spaced at 6 inches o. Ah yea the wording is cut off from the photo. Step 4: Ensure the sheathing thickness is at least 3/8 inch and re-nail sheathing if required. 1 When a roof on an existing site-built, single family residential structure is replaced:Roof-de. For installation, use the same clip as plywood thickness. TSP. 5T single-sided hurricane tie is designed to resist moderate loads at the rafter/truss-to-top-plate connection. gov. 1507. With this technique, lookout blocks are used to connect the barge or fly rafter back to the gable framing. Hurricane Tie that connects roof truss directly to stud. The attachment of sheathing is vital because the suction (uplift) forces on roofs can exceed the weight of a man over an area about the size of a standing man. 2322. Once positioned, use the recommended nails or screws to fasten the tie securely. The issue here is, these areas where the roof framing meets the top of walls are usually hidden behind drywall on the May 16, 2022 · Hurricane tie-down terms can be confusing. Apr 3, 2014 · In my area we typically use 8d commons for toe-nails for lateral and shear loads, and a hurricane tie/strap for the uplift loads. The STHD incorporates many features that aid correct installation and improve performance. In much of the country, bricks are held in place by corrugated metal brick ties, but when building in high-wind zones, two-piece commercial anchors with wire legs are a better choice. A hurricane strap is a connector that is used to strengthen wood framed roofs and homes. The unique seat design of the HDQ8 greatly minimizes deflection under load. 5A single-sided hurricane tie is designed to resist moderate loads at the rafter/truss-to-top-plate connection. Typical gable ends have four major areas of weaknesses that create risks of failures in high winds. All roof sheathing acting as a diaphragm shall be attached to a minimum 2-inch (51 mm) thick nominal member with its depth equal to or one size greater than the intersecting top chord. Table R602. 3(1) to fasten this "top plate" to the top plate below it. Minimum full wall lengths per braced panel of: o 48″ for up to 10′ walls. Use also for a variety of connections where one member crosses another. Then, work your way from bottom row to the top row, installing one sheet at a time. They may be installed either flush or raised off the mudsill Wall sheathing shall be plywood, or product-approved structural panel, rated Exposure 1 with a minimum thickness of 19 / 32 inch (15 mm) and shall be applied to studs spaced not more than 16-inches (406 mm) on center. on all roof framing members Fast and easy - just slip over the sheathing edge. The HPT is specially designed and tested for single-wall homes and meets Hawaii state requirements for uplift resistance. You can get a full guide to retrofitting hurricane straps on the Jul 3, 2021 · For wall sheathing, you use 1/2″ plywood and 2″ screws. Eliminates the gable end hinge point when Windstorm extends beyond the bottom chord. In high-wind zones, this affords the designer an increased shear wall strength to resist the lateral loads induced on a structure. Made from 18-gauge steel. H10A models come with optional fastener holes to connect roof blocking to the top plate. com or contact our technical services department at 1-800-933-9220 Ext. 2. Lap splicing of coiled straps can be used to extend standard strap lengths for designing continuous drag elements and diaphragm chord members. However, installing them on the inside may be necessary for certain retrofits or unfinished spaces. RT16 and (2) RT7A's shown. U-shaped connector attaches plates to studs over 1/2" sheathing. 5T ties are available in left- and right-hand models and can be installed in pairs. Rafter ties shall be spaced not more than 4 feet (1219 mm) on center. Apr 21, 2024 · It might surprise you that these tiny H2. Ships Jul 15 when you order now. Jun 4, 2014 · Answer. For instance, many people think toe nail connections can replace hurricane clips, but they can’t. At the least, if the sheathing is used to resist the uplift, the ties should be on the same side. Install with 10d x 1-1/2 in. Veneer ties shall be corrosion-resistant metal capable of resisting, in tension or compression, a force equal to two times the weight of the attached veneer. These forces are not pushing the sheathing down against the roof structure; instead they are trying to rip the sheathing off of your roof. The most popular hurricane straps are made of galvanised steel or stainless steel and they are designed to protect structures from the ravages of adverse weather events such as tropical storms and winter storms. Minimum and maximum nailing options provide solutions for varying heel heights and end Apr 30, 2024 · Steps to Proper Installation. <p>Seismic and hurricane ties are metal connectors with various configurations. (2) RT7A's shown. di hj kr sk vc ci ez cq bk fh