Floor insulation is an integral part of overall home insulation. Insulation of the attic floor is so vital that the DOE has specific insulation R-value recommendations for it. We are going to check the attic floor insulation R-value chart (check below). Here’s the whole point of attic floor insulation: Compared to the rest of the … Read more
“How much R-value does blown-in insulation have per inch?” With blown-in insulation (also referred to as loose-fill insulation), the R-value per inch is the key data point. Blown-in insulation can have R-values from R-1 per inch and up to R-3.4 per inch (loose-fill cellulose). We are going to list all blown-in insulation R-values per inch … Read more
All bat insulations have relatively high R insulation values. In general, we can say that bat insulation R-value ranged between R-3 to R-4 per inch. There is a bit of variety between fiberglass, mineral wool, cotton, and cellulose bats, and we are going to cover all of them. Namely, with batt insulation, we get these … Read more
The most important parameter for attic insulation is the R-value. Compared to the rest of the house, the attic should have an above-average R insulation value. In the US, we have 7 climate zones with 7 recommended R-values for attics; we’re going to look at each of them in turn. Here’s why attic insulation thickness … Read more
Both U-value and R-value are used to denote the insulation properties of structural sections. In many cases, you will have to convert the U-value or U-factor to R-value. Below, you will find a U-value to R-value calculator that automatically converts U-factors to R-values (just insert U, and get V). On top of that, you will … Read more
R-value or thermal Resistance is the basic metric for insulation materials in construction. This R-value is calculated based on several measurements that include the area of a 2-dimensional barrier (wall, insulation batt, polyiso, etc.), the temperature difference between indoor and outdoor, and time. When homeowners want to know how to calculate R-value, they usually have … Read more
Ducts are an essential part of HVAC and our household. They experience both the highest temperatures (heating season) and the coolest temperatures (cooling season). To make them as efficient as possible, it makes sense to insulate air ducts. When is insulation required on air ducts? Most ducts require insulation with a specified R-value; this is … Read more
Rigid insulation like rigid foam and foam boards have high R-values. That’s why materials like polyiso (polyisocyanurate), EPS (expanded polystyrene), and XPS (extruded polystyrene) like Styrofoam make for such good insulation materials. We are going to look what is rigid insulation R-value per inch and the rigid insulation thickness chart (for 1, 2, 3, 4, … Read more
Polyiso is a very good insulation material. We commonly referred to it as ISO; the molecule that makes polyiso is polyisocyanurate. We are going to look into insulation R-value of polyiso. Below you will also find a ‘Polyiso R-Value Thickness Calculator’ (insert inches, get ISO R-value) and ‘ISO R-Value Thickness Chart’. Here is the key … Read more
When thinking about insulation, the key metric you have to think about is the insulation R-value. As we have talked about in the post about types of insulations here different materials and types of insulations have different R-values. To help you choose adequate insulation, we have summarized the R-values of 51 most common insulation materials … Read more