Building Science Insulated Sheathing Wood Siding

Five common structural exterior sheathing options include wood based gypsum glass mat cement board and barricade thermo brace.

Building science insulated sheathing wood siding.

Guide to insulating sheathing. In general eps foam has the lowest r value per inch with xps being slightly more efficient and with polyisocyanurate having the best r value per. When insulated siding is installed over furring strips the space between the furring strips must be filled in with rigid insulation or another appropriate building material. As a result the siding cups cracks and sheds paint.

Get building science and energy efficiency advice plus. In order for insulated siding to qualify as home insulation it must be installed directly over a water resistive barrier and sheathing. Insulated sheathing in a cold climate. Foam is less permeable to water vapor and the back of the siding stays wet as the face of the siding dries.

Residential housing design continues to move towards the development of high performance sustainable building systems. It provides a surface for the application of materials like siding and helps shield a structure from rain snow wind etc. Page 7 of 30. Building science corporation.

Hot sun can overheat wood siding causing it to dry excessively and crack. From this new methods of enclosure design have been examined that provide high thermal performance and long term durability but also take opportunities to. Structural sheathing gives a home or commercial building integrity and rigidity. To be sustainable a building must not only be efficient and durable but also economically viable.