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Material Properties of Rigid foam Insulation

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Right – Furring strips provide a drainage and ventilation gap between the siding and the cork insulation.

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Right – The rigid insulation covers all exterior walls and all seams are taped to provide a complete drainage system

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Rigid foam insulation can serve as the drainage plane when all seams are taped. Furring strips provide an air gap behind the cladding.

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Good water management practices like sloping grade away from house, and installing gutters, perimeter drain pipe, a capillary break, and free-draining soils or drainage mat protect the foundation from water saturation.

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Inspection of taped joint

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The mistake of not staggering siding and foam sheathing joints

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Right – Furring strips provide a drainage gap between the rigid foam and the siding.

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Furred-out siding

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Low-Slope ("Flat") Roofs

Guide

A guide describing how to install low-sloped ("flat") roofs with insulation above the roof deck that resist wind pressures during high-wind events.

Flashing of Penetrations in Existing Roofs

Guide

Guide describing how to provide a continuous water control layer across the roof assembly by sealing all penetrations for pipes, vents, etc. in existing roofs.

Disaster-Resistant Roof Venting

Guide

Guide describing the installation of roof vents that are resistant to damage from high winds and entry of wind-borne rain, wildfire embers, or pests.

Air Sealing Doors Adjacent to Unconditioned Space

Guide

Guide describing how to air-seal doors that are next to unconditioned spaces.

Roof Valleys and Penetrations Sealed

Guide

Guide describing how to seal roof valleys and how to seal around pipes, chimneys, and other roof deck penetrations.