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Drainage behind wood shingle cladding is provided by a 3/8-inch-thick drainage mat.

Drainage behind wood shingle cladding is provided by a 3/8-inch-thick drainage mat.

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Drainage and back ventilation of wood cladding is provided by ¾ inch furring.

Drainage and back ventilation of wood cladding is provided by ¾ inch furring.

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Drainage and back ventilation of wood cladding is provided by ¾ inch furring (1x4).

Drainage and back ventilation of wood cladding is provided by ¾ inch furring (1x4).

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Drainage behind stone cladding is provided by “grooved” rigid insulation coupled with a filter fabric.

Drainage behind stone cladding is provided by “grooved” rigid insulation coupled with a filter fabric.

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Metal hat channel provides a drainage gap of 1 inch between fiber-cement siding and mineral wool continuous insulation.

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Continuous rigid insulation coupled with thin (1/4-inch) spacer strips that provide drainage behind the wall cladding without increasing the fire risk of the assembly.

Continuous rigid insulation coupled with thin (1/4-inch) spacer strips that provide drainage behind the wall cladding without increasing the fire risk of the assembly.

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The combustible rigid foam insulation is protected by a non-combustible layer of mineral wool insulation; a 7/8 inch “hat-channel” provides the ventilation and drainage gap.

The combustible rigid foam insulation is protected by a non-combustible layer of mineral wool insulation; a 7/8 inch “hat-channel” provides the ventilation and drainage gap.

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The furring strips that provide a drainage gap behind the lap siding are wrapped with ≤ 1/8-inch screen at the top and bottom of the wall to keep out bugs and burning embers.

The furring strips that provide a drainage gap behind the lap siding are wrapped with ≤ 1/8-inch screen at the top and bottom of the wall to keep out bugs and burning embers.

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Small spacer strips consisting of ¼-inch plastic strips provide a drainage gap behind wall cladding with a gap that is too small to pose a fire risk from embers entering the gap.

Small spacer strips consisting of ¼-inch plastic strips provide a drainage gap behind wall cladding with a gap that is too small to pose a fire risk from embers entering the gap.

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Stucco wall assembly with a drainage mat providing a small vented gap (experience has shown that ≤ 3/8 inch is effective), and a water-resistant barrier house wrap serving as a vapor throttle.

Stucco wall assembly with a drainage mat providing a small vented gap (experience has shown that ≤ 3/8 inch is effective), and a water-resistant barrier house wrap serving as a vapor throttle.

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Stone cladding system with a drainage mat provides a small, vented gap (≤ ¾ inch), over a water-resistant barrier house wrap that has a perm rating of 10 to 20 perms so it can serve as a vapor throttle.

Stone cladding system with a drainage mat provides a small, vented gap (≤ ¾ inch), over a water-resistant barrier house wrap that has a perm rating of 10 to 20 perms so it can serve as a vapor throttle.

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Fire-Resistant Wall Assemblies

Guide

Guide describing wall assemblies and materials that are resistant to destruction from wildfires.

Moisture-, Impact-, Fire-, and Pest-Resistant Exterior Siding

Guide

Guide describing how to select the siding materials best suited to withstand hazards like rain, wind, hail, fire, and pests.

Decks are Wildfire-Resistant

Guide

Guide describing how to properly construct decks and other building attachments to be resistant to ignition in the event of a wildfire.