Jack Gray This page is a reformatted version of the July 1931 revision of “Weights of Various Woods Grown in the United States, Technical Note Number 218” by the Forest Products Laboratory, Madison, Wisconsin (United States Forest Service). Weights of Various Woods Grown in the United StatesTechnical Note Number 218Forest Products LaboratoryMadison, WisconsinUnited States Forest ServiceRevised: July …
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 6×6 …
I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. What are Roof Nail Pops? Roof nail pops, also called “backed-out nails,” are a type of roof defect where the roofing nails which secure the shingles have been forced back and out of the roof sheathing …
I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. Introduction This guide provides step-by-step instructions on how to patch a rubber roof. You can repair an EPDM rubber roof yourself. EPDM rubber is one of the easiest roofing materials to repair properly. Always follow roofing safety guidelines when …
I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. Tilt-Up Construction Overview Tilt-up construction is a building method where large reinforced structural concrete panels are cast on site, then tilted up vertically and secured to form the building’s walls. Although the first documented use of …
I participate in the Amazon affiliate program and may earn commissions from purchases made through links on this page. Introduction This article provides general information about various types of roof coatings. In addition to drawing on my own personal experience overseeing roof coating projects, I compiled much of the technical information here from a wide …
Introduction PVC (polyvinyl chloride) roofing is a type of flat or “low slope” roofing system widely used in commercial and industrial building construction. PVC roofing systems were introduced in the late 1960s, and after they had some initial issues resolved in the 80s, they now have a record of proven performance going back almost 40 …
Introduction When I was managing roof maintenance programs for commercial properties in Chicago, every once in a while a property manager would express concern that the snow building up on her commercial low-slope roofs would melt all at once and the roofs’ storm drainage systems wouldn’t be able to handle it. It seems like it would be …
What is Dimensional Lumber? Dimensional lumber is simply lumber that is produced with standardized dimensions. Standardized lumber dimensions such as “2 x 4” allow for a multitude of efficiencies in construction. Subcategories of dimensional lumber include appearance framing lumber, beams, joists, light framing lumber, planks, posts, stringers, structural light framing lumber, studs, and timbers. The lumber …
Introduction If you’re getting ready to have a new roof installed, you’re probably doing some research about the roof replacement process right about now. A new roof is a substantial investment, kind of like a car. And just like when you’re buying a car, when you’re paying for a roof replacement you want to know …