Garage door is impact rated. It has horizontal cross braces.the garage door has seven bracket attachment. Clopay is the manufacture the made the door. In accordancee with the ansi. Vertical bracing on each garage door panel. S/n 011a3010950990. Design pressure 64psf
The Garage door of the home is impact rated. It has horizontal cross braces with vertical ones on each panel.The garage door has seven bracket attachment Clopay is the manufacture the made the door. In accordancee with the ANSI. S/n 011a3010950990. Design pressure 64psf
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Acid rain is caused when a mixture of wet and dry deposit from the atmosphere containing high amounts of nitric and sulfuric acids. Acid rain can be carried by rain,snow,fog,and mist. Its effects on buildings can be extensive. It corrodes metals but will dissolved stone even faster.
Garage door was installed Oct 2012 and is labeled as being approved for Florida if installed according to appropriate drawings. There is no checkmark on the rating label as to which drawing applied for this installation.
The door appears to have horizontal reinforcments and is mounted with five brackets per side.
I would need to check with the homeowner or with the door manufacturer to see what installation drawing may apply for this case.
Reviewed article on “Wind Mitigation”.
What is critical is understanding the different types of construction techniques to prevent compromise of the roof structure or any building openings. For the roof structure, key factors include the types and attachment of shingles, the thickness of the roof sheathing and the length of nails used to attach the sheathing to the underlying supports. Differences between 6d and 8d nails is 2.4x better uplift resistance when using the 8d nails. This seems a major change when going from 6d to 8d nails.
Openings need to have impact resistant glass or storm shutters for protection. Of particular concern are large openings, such as sliding glass doors or the garage opening.
I seldom run into protected glazed openings in St. Augustine. I’ve also never seen straps, only clips. The windows in the photo are from 1974 when the home was built. Most of my clients only end up with credit for roof and wall connections.
I just read an article about roof geometry. The newer homes in and around St. Augustine have hip or mostly hip features. They are the easy ones. The older roofs that are clearly other on the form are also easy.
In the Photo above the garage door has a label that says Miami-Dade approved for HVSV but the track brackets are improperly mounted. There are only three track brackets on each side. There was also no documentation for city permits or any receipts for proof installation from the home owner.
The article called “Wind Mitigation” by Nick Gromicko and Kenton Shepard, was very interesting. I learned about the incentives to having a wind mitigation done. This will definitely help many of my existing and any future customers reduce their Wind Insurance premiums.
Exterior opening cyclic pressure and 9 lb.All glazed opening are protected at a minimum,with impact resistant covering or product listed as wind borne debris protection devices and meet the requirements( florida building code ,american standard for testing and materials for skylights and for garage doors as well .All non glazed opening clasified as A
Extrrior opening cycle presure and 9 lb large missile All glazed opening are protected at a min with impact resistancec
Covering debris protection device approved and meet the requirement (buildingcode testing,for garage door,skylight and american society for testing and materials .all non glazed opening clasified as A
As you can see in the image above, here we have a metal single strap 1.5" of truss, the strap has a total of 3 nails, 2 on the front and another on the opposite side, it is also attached to the wall frame.
we have a total of 4 different types of electrical cables. type nm-b,se,armored and underground feeder.the cables can range from 14 gauge to 500 kcml in copper, and 12 gauge to 700kmcl in aluminiun. these cables can use a variety of fuses ranging from 15amps to 400 amps.
This is an example of a glazed opening that is not NOA accepted. There is no exterior protection and is left vulnerable to wind borne debris. In this case, it would be a good opportunity to educate the homeowner regarding vulnerabilities to the home.
I reviewed a picture from the inspection image gallery under Framework. There are two types of Framework, the first is Platform, the second is Balloon. Platform is constructed of 2x4 flat as base. The Balloon method is constructed of 2x6 in the upright position as base.
Photo taken is of a window rating in brooksville Florida Florida.This window is a single pane window located on the south facing side of the home. This window is not a rated hurricane window . The window location is approximately 20 feet from the adjacent home next door and would be subject to wind borne debris in the event of a hurricane. It would also be subject to higher wind speeds due to location between two homes so closely located.
This is a window sticker from a window located on the south side of the home. The window is not hurricane rated. This window would be subject to flying debris and higher wind speeds due to location between an adjacent home less than twenty feet away.
The article I examined was “Wind Mitigation”. I found it interesting that many garage doors fail during windstorms. I would have thought that given the metal construction of most doors would limit this issue.
I also found it interesting that most home owners do not know that they can receive discounts from their insurance companies for complying with reducing their “wind damage exposure” through proper fastners and coverings.
I chose to take a picture of a garage door that has a rating sticker on it but is not MDC rated. The small yellow sticker on the door states that the door has been tested to withstand Design Pressure of +25PSF and a Test Pressure of +37.5 PSF. Looking at the attachments to the wall, there are only 5 which is not enough to be windstorm rated.
These photos are from a Florida house built in 1984 (wood frame). Based on the photos below, 3A and 4B would be checked on the Florida Wind Mitigation Form (OIR-B1-1802)
3. Roof Deck Attachment: What is the WEAKEST form of roof deck attachment?
A. Plywood/Oriented strand board (OSB) roof sheathing attached to the roof truss/rafter (spaced a maximum of 24 inches o.c.) by staples or 6d nails spaced at 6 along the edge and 12 in the field. -OR- Batten decking supporting wood shakes or wood shingles. -OR- Any system of screws, nails, adhesives, other deck fastening system or truss/rafter spacing that has an equivalent mean uplift less than that required for Options B or C below.
4. Roof to Wall Attachment: What is the WEAKEST roof to wall connection? (Do not include attachment of hip/valley jacks within 5 feet of the inside or outside corner of the roof in determination of WEAKEST type)
Minimal conditions to qualify for categories B, C, or D. All visible metal connectors are:
Secured to truss/rafter with a minimum of three (3) nails, and
Attached to the wall top plate of the wall framing, or embedded in the bond beam, with less than a " gap from the blocking or truss/rafter and blocked no more than 1.5 of the truss/rafter, and free of visible severe corrosion.
B. Clips
Metal connectors that do not wrap over the top of the truss/rafter
