Gravel Size Blue Roof

A blue roof is a roof of a building that is designed explicitly to provide initial temporary water storage and then gradual release of stored water typically rainfall.

Gravel size blue roof.

Blue roofs are constructed on flat or low sloped roofs in urban communities where flooding is a risk due to a lack of permeable surfaces for water to infiltrate or seep back into the ground. Size 57 is another of the more popular gravel sizes. This makes medium size gravel the perfect choice for for flowerbeds and the base of trees. Gravel sizes and applications for construction landscaping.

Tar and gravel roofing is the generic name for a built up roofing system used on low slope roofs. While tar and gravel roofing or built up roofing systems have many positive aspects if you live in an area or the roof is in a location where it will receive strong sun exposure hot tar roofs will likely damage the roof s membrane if it is left uncovered or unevenly covered by the gravel. Large particle gravels like one half inch and larger crushed rock and drain rock have gravity and size to their advantage and will be much less likely to track into the house than decomposed. This gravel is often used for paving walk or driveways at it can be walked and driven on with.

Roofs with a rise of 3 inches for every 12 inches of run or less are candidates for a built up. Any piece of gravel that is the same size or smaller than the treads on a common shoe can be picked up lodged in the sole and tracked into the house. Our experience is that most gravel roofs are 3 ply hot mopped asphalt built up with a gravel finish applied. Naturally smaller gravel under 1 4 inch size may scatter a bit.

Here alternating layers of roofing felt usually fiberglass and hot applied asphalt are combined to create a long lasting roof system. Roofers river gravel click to enlarge image s roofer s gravel is a 1 to 2 rounded colorful river gravel that is used for rubber roofing or landscaping purposes. A built up roof bur sometimes called a tar and gravel roof is a tried and true style of flat roof. Pea gravel crushed rock and decorative rock white quartz are often dispersed into a flood coat of hot asphalt and applied over the top of the roof membrane.

Lets examine a few characteristics of gravel starting with size. Gravel is a essential building block for almost any type of housing or infrastructure. Gravel you see it on roadsides at construction sites and in road building.