BASC Search | Building America Solution Center

Wrong – This roof membrane on a low slope roof is fluttering and may fail because it is not fully adhered and deck seams below are not sealed, allowing air to leak up into the assembly while the membrane is pulled up due to negative pressures from wind

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This home was designed with continuous roof vents and very few roof penetrations, allowing more room for the solar shingles that integrate with the asphalt shingles installed to meet IBHS Fortified Roof criteria for increased resistance to high winds and wind-driven rain.

This home was designed with continuous roof vents and few roof penetrations, allowing more room for the solar shingles that integrate with the asphalt shingles installed to meet IBHS Fortified Roof criteria for increased resistance to high winds and rain

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Wrong - The studs added for support were cut at an angle providing weak support where the stud meets the compression block.

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This roof was constructed to meet the IBHS Fortified Roof standard by sealing the decking seams with flashing tape, installing synthetic roof underlayment secured with metal drip edge and nailed every six inches, and using self-adhered starter shingles.

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Properly driving roofing nails.

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Right – Integrate pipe flashing with roof shingles

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CAD image for roof pipe penetration water and air sealing details

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Right - Lookout or outrigger framing for a gable overhang provides two points at each outrigger to add metal connectors to strengthen the overhang against wind uplift.

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Stormproof Your Roof

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Video presentation explaining proper roof membrane and shingle installation, including key weak points where moisture can get in during a disaster weather event.

Saturated ground water

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Downspout termination

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Steps for installing asphalt roof shingles for enhanced wind resistance.

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Roof-wall flashing details.

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Right – Examples of sheathing fastener patterns.

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General Flashing Guidelines for Steep-Sloped Roofs

Reference

Guide describing how and where to install flashings in order to weatherproof a roof.

Hail Supplement to the High Wind Standard

Reference

Guide describing the requirements by FORTIFIED Home™ for improving the home's resistance to high wind and hail.

Retrofit Improvements - Bracing of Roof Projections

Reference

Fact sheet describing how to install bracing to retrofit roof dormers for increased wind resistance.

Disconnect or Redirect Your Downspout Brochure

Reference

A guide on the use of rain barrels for greater water efficiency and use in gardens and lawns.

Window Systems

Reference

Fact sheet describing impact-resistant window systems with specifics on Florida’s building codes.

How to Properly Install Concrete or Clay Tile Roofing

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Video demonstration of proper concrete or clay tile roofing, including underlayment per Weather Proofing America guidelines.

Integrate pre-formed vent pipe flashing, shingle-fashion, with roofing underlayment and shingles

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Right – Flashing is installed around chimney, skylight, vents, dormers, in valleys and at eaves

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Water Moisture Issues: Flashing Windows, Water Leaks, and Kick-Out Flashings

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Steve Easley details the 2009 IECC residential requirements regarding Water and Moisture issues. Flashing, windows, water leaks and kick out flashings are all discussed.

Install gutters and downspouts that divert water away from home.

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FORTIFIED Home Roof Flashing

Reference

Fact sheet instructing installers about flashing installed on a FORTIFIED roof and points to roof covering manufacturers for flashing installation instructions.