Jack Gray I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. Introduction In this article, I’m going to explain what a hip and valley factor is, show you the math, and give you a pretty comprehensive table where you can look up the hip and valley factors …
Introduction Knowing material weights is extremely important when you’re planning on putting things on top of a roof. You have to avoid structural loads that exceed the design strength of the roof and the roof’s supporting structure. I thought it would be helpful to have an easy way to look up the weight of 2×6 …
Introduction In this article, I’m going to explain the things that you have to account for when you come up with a PVC membrane roofing cost estimate. I’ll also give you the typical costs for various types of PVC membrane roofs in 2025. To learn more about PVC roofing in general, please see my introductory …
I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. What is Roof Drainage? “Roof drainage” refers to the system of components and design elements that are used to remove water from a roof and convey it away from a building to an appropriate discharge location. …
Introduction Update: I am now updating the table by using an AI model to analyze extensive publicly available construction cost data, including population data, consumer price data, labor & wage trends, material cost indices, regional construction indices, building permit records, and local market condition analysis, as well as my company’s private records relating to contractor …
Thermal Expansion Calculator This calculator uses the values presented in the thermal expansion table below. Thermal ExpansionCalculator Thermal Expansion Input Form Type of Material: Material Length: feetinchesmetersmillimeters Start Temperature: °F°C End Temperature: °F°C Calculate Change in Length: in ft mm m New Total Length: Clear Calculator Coefficient of Linear Thermal Expansion Explained The coefficient of …
Introduction In this article, I’m going to explain the factors that determine TPO roofing costs. I’ll also give you the typical costs for various types of TPO membrane roofs in 2025. Roof consultants will typically have to produce accurate roof replacement budget projections for their clients every year. This means keeping up-to-date with changing material …
I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. Introduction In this article, I’m going to explain the factors that determine EPDM roof costs. I’ll also give you the typical costs for various types of EPDM rubber membrane roofs in 2025. Roof consultants typically have …
I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. Introduction: Degrees, Percentage, Standard Roof Pitch There are three basic ways to express roof slope. Roof slope can be given in degrees, as a percentage, or as a rise-in-run ratio (X-in-12), otherwise known as standard roof …
Introduction In this article, I’m going to explain the factors that determine asphalt shingle roof costs. I’ll also give you the typical costs for various types of asphalt shingle roofs in 2025. Keep in mind that the cost of any particular asphalt shingle roof will depend on several variables, including roof size, roof pitch, roof complexity, local …