attachment of asphalt shingles in high velocity wind

Attachment of Asphalt Shingles in High-Velocity Wind Zones

Oct 11, 2006· Attachment of Asphalt Shingles in High-Velocity Wind Zones. Attachment procedures for all roof systems, both steep slope and low slope, are being scrutinized, and code changes are imminent. Stringent building codes and tightened regulations were enacted in South Florida after Hurricane Andrew in 1992.

Author: John D'annunzio

Best Practices: Attachment of Asphalt Shingles in High

Jun 10, 2008· In 2004, the International Building Code enacted new high-wind performance standards for asphalt shingles. The standards, published in the 2004 IBC Supplement, provide attachment criteria for asphalt shingles in high-velocity wind zones where wind speeds reach up to 150 mph.

Author: Alvaro Mejia

Best Roof Types for Florida & Texas: Miami, Orlando, Houston

Best Shingles for High Wind Areas like Florida and Texas Let’s start with asphalt shingles you should stay away from. Most 3-tab three-tab asphalt shingles are rated

Technical Details: Code Changes Could Decrease Damage in

Jul 28, 2011· Effects of High-Velocity Wind on Roofs Wind, especially at high velocity, creates vacuum or negative pressure, lifting the membrane and roof insulation material loose from points of attachment. Wind uplift is severe at the roof perimeter primarily at corners, where it exceeds the normal static pressure against the wall.

Author: John D'annunzio

Asphalt Shingle Roofing for High-Wind Regions fema.gov

high-wind, hurricane-prone areas both coastal and inland. Key Issues • Special installation methods are recommended for asphalt roof shingles used in high-wind, hurricane-prone areas i.e., greater than 90-mph, 3-second peak gust design wind speed. • Use wind-resistance ratings to choose among shingles, but do not rely on ratings for performance. • Consult local building code for specific

Technical Details: IBC Codes Pertaining to Asphalt Shingles

May 06, 2008· Attachment. On dimensional shingles, fastening should be within the nailing zone. Further attachment is required in high-velocity wind zones with three 1-inch diameter dabs of asphalt cement at each shingle and two dabs at rakes, hips and ridges.

Author: BNP Media Staff

What is the most common type of roof-to-wall attachment?

Jun 16, 2018· The Wind Mitigation Form, which provides insurance discounts for a hurricane-resistant features of a home, has several categories of roof-to-wall attachment. To read about it, go to our blog post What is the difference between a toe nail, clip, single wrap, and double wrap for the wind

Chapter 9: Roof Assemblies, FBC, Residential 2017 | UpCodes

Shingles classified as ASTM D3161 Class D or classified as ASTM D7158 Class G are acceptable for use where Vasd is equal to or less than 100 mph. Shingles classified as ASTM D3161 Class F, TAS 107 or ASTM D7158 Class H are acceptable for use for all wind speeds. Asphalt shingle wrappers shall indicate compliance with one of the required...

The Use of Adhesives for Attachment in Roofing Applications

Aug 01, 2003· Asphalt is a thermoplastic material, which changes properties with an increase in temperature. The material turns to a liquid as the temperature increases. As the membrane is applied to the hot asphalt, the asphalt cools and solidifies and the curing process and subsequent waterproofing protection begins immediately.

Chapter 9: Roof Assemblies, FBC, Residential 2017 | UpCodes

Asphalt shingles shall be classified in accordance with ASTM D3161, TAS 107 or ASTM D7158 to resist the basic wind speed per Figure R301.2 4. Shingles classified as ASTM D3161 Class D or classified as ASTM D7158 Class G are acceptable for use where Vasd is equal to or less than 100 mph. Shingles classified as ASTM D3161 Class F, TAS 107 or ASTM D7158 Class H are acceptable for use for all

What is the most common type of roof-to-wall attachment?

Jun 16, 2018· The Wind Mitigation Form, which provides insurance discounts for a hurricane-resistant features of a home, has several categories of roof-to-wall attachment. To read about it, go to our blog post What is the difference between a toe nail, clip, single wrap, and double wrap for the wind

The Wind Resistance of Asphalt Roofing Shingles

For wind flowing up the roof slope, localized flow separation at the leading edge of the shingle tab may be the largest contributor to asphalt shingle wind uplift. Asphalt shingles are a relatively permeable material and may not be significantly affected by the larger scale flow separation bubble. 2.

DWELLINGS IN HIGH WIND VELOCITY AREAS HWA

Besides required fasteners per Section 1507.2.6 and Section 1507.7.3.1, asphalt and slate shingles shall be bonded to the underlay with a one-inch diameter spot of asphalt cement under each tab or by using a 1/8-inch diameter minimum bead of asphalt cement.

CHAPTER 44 HIGH-VELOCITY HURRICANE ZONES

Asphalt shingles shall be applied only to solid wood sheathing and shall be in tin-capped and spot-stuck, as set forth in Section R4402. R4401.3 Roll slate or felt. Roll slate or felt shall be applied onlytosolidwoodsheathingandshallbesecuredbynailing,as set forth in Section R4402.

Web Exclusive: Important Roofing Codes

Aug 01, 2009· Shingle attachment shall be completed with approved nails and not less than four fasteners for strip shingles and two fasteners for individual shingles. A minimum of six fasteners is required for shingles in high-velocity wind zones. 1507.2.3 Underlayment.

Two layers of shingles Florida Building Code Florida

Apr 25, 2019· Did a home inspection yesterday, There was two layers of architectural shingles. #30 Felt, old roof covering and then new roof covering.. I know this is incorrect especially down here in Florida with the heat and being in the high wind debris zone.

Hurricane Mitigation Miami-Dade County

2 A #30 ASTM basesheet installed with nails and tin caps and covered with either an approved self-adhering polymer bitumen cap-sheet or an approved cap- sheet installed with hot asphalt. In the High Velocity Hurricane Zone HVHZ, full sheets of self adhering membranes can only be installed over a mechanically attached base sheet (the bottom or first ply of a roof assembly that has been

Florida Building Code Advanced Training: Residential

This module, covering asphalt shingles, is partially adapted from: Florida Building Code Advanced Training: Roofing, which was developed with primary input from Ms. Lorraine Ross, President, Intech Consulting, Inc., and Residential Roofing and Hurricanes, developed by Building a Safer Florida, Inc.

Technical Details: Recent Changes to Building Codes

Jul 24, 2008· Attachment of Asphalt Shingles Section 1504.1.1, “Wind Resistance of Asphalt Shingles” states: “Asphalt shingles shall be installed in accordance with Section 1507.2.7. For roofs located where the basic wind speed in accordance with Figure 1609 is 100 mph or greater, asphalt shingles shall be tested in accordance with ASTM D 3161, Class F.

Metal Roof Systems in High-Wind Regions

Purpose: To describe practices for designing and installing metal roof systems that will enhance wind resistance in high-wind regions i.e., greater than 90 miles per hour [mph] basic [gust design] wind speed.1 HOME BUILDER’S GUIDE TO COASTAL CONSTRUCTION 7.6: METAL ROOF SYSTEMS IN HIGH-WIND REGIONS 1 of 5

John Curtin Home Inspector Wind Mitigation Report

May 02, 2016· Typical coverings include; asphalt shingle, concrete or clay tile, metal, etc.... A roof permit application date of March 1, 2002 or after will be eligible to receive an insurance credit. Roof Deck Attachment : Pictures will be taken to document the nailing pattern and type of nails used to secure the roof decking to the trusses.

BCAB discover.pbcgov.org

The Florida Building Code requires "special methods of fastening" for asphalt shingles roofs in areas where the basic wind speed is 11Om ph or greater. This "basic wind speed" is now in three-second gusts. Palm Beach County is 140mph in the eastern half. The

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