Siding R Value

The energy efficiency for building materials is known as r value.

Siding r value.

The higher the r value the more efficient the building material is. When determining how much insulation you need don t guesstimate calculate. Astm d7793 requires insulated siding to demonstrate a minimum r value of 2 0. The table below shows what levels of insulation are cost effective for different climates and locations in the home.

See the brochure. Jump to specific section. R value measures how well certain building insulation materials can resist heat. Esr 1844 noncombustibility see page 1 section 3 1 flame spread and smoke developed see page 1 section 3 1 1 hour fire walls see page 2 section 4 3 design wind loads see page 4 5 table 4 r values see page 3 table 2.

Vinyl thin film window covering. R value see table 2. The higher the r value the greater the insulation performance. In construction the r value is the measurement of a material s capacity to resist heat flowfrom one side to the other.

Highly impact resistant and easy to maintain the wide panels look and feel like traditional wood siding. Building materials are given an r value which is a measurement of how well that material resists the conductive flow of heat or how well it insulates. Vinyl and lp wood siding have similar r values around 6 with lp siding having the edge. R value is a measure of insulation s ability to resist heat traveling through it.

Structure home insulation system siding is an exclusive combination of vinyl siding technologies and high performance foam that wraps your home in a continuous blanket of insulation keeping you warm in winter and cool in summer. The truth is no standard siding material offers very good efficiency. U value and emissivity values vary depending on the type of film with emissivity values from 0 07 to 0 81 debusk 29. Most energy experts suggest that your home s walls should have at least an r 13 energy efficiency.

R value of building materials material r inch r thick ness fiberglass inch 3 00 1 inch 4 00 inch 6 00 extruded polystyrene inch 3 75 1 inch 5 00 1 inch 7 50 foil faced polyisocyanurate inch 5 40 1 inch 7 20 1 inch 10 80 siding materials hardboard inch 0 34. The higher the r value the better the thermal performance of the insulation. For instance if you have a material with an r value of 12 attached to another material with an r value of 3 then both materials combined have an r value of 15. In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation.

This means that no matter which material you pick it can serve as additional insulation. In fact that is code in many areas. Know exactly how much you need with our project calculators. Insulated vinyl siding as home insulation pdf vinyl siding institute.