The first is to protect the underlying layer of roofing materials on built up roofs burs and the second is to secure or weigh down the roofing material as is the case with single ply flat roofs.
Rock roof covering.
Its unique fiber reinforced homogeneous composition gives the panel strength and water resistance through to the core.
To weigh down or secure the roofing material as is the case with single ply flat roofs.
A built up roof for example will typically include the built up membrane itself with or without gravel as well as some kind of insulation and cover board which will vary in thickness from roof to roof.
A tar and gravel roof or built up roofing consists of several layers of waterproof material alternated with hot tar and a surface layer of mineral aggregate often smooth river stone.
Variations in terms of roof structure pitch and roof covering lead to some unusual and inventive designs here we take a look at the different roof coverings available from the types of roof tiles on the market to tile alternatives and where they are best suited.
Slate roofing is one of the most durable roofing materials available today.
Epdm and neoprene roof seams are fastened by adhesive and pvc roof seams are heat or solvent welded.
It tells a story of the land it came from and the men who labored and handcrafted the rock into tiles.
When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary.
Gravel is used on flat roofs for two reasons.
Membrane roofs are attached in a variety of ways.
Easy to use parts catalog.
There are different types and weights of gravel used on flat roofs for these purposes.
To protect the underlying layer of roofing materials as is the case with built up roofs burs.
Usg securock brand gypsum fiber roof board is a high performance roof board for use in low slope roofing systems.
This surface layer weighs down the built up roof protects it from sun exposure and serves as decoration.
A properly installed slate roof covering can easily last for 100 years requiring little maintenance spray foam roofing.
The light colored gravel also reflects the sun s heat.
The surface is coated with bitumen and a layer of gravel or crushed rock to hold the roofing material down and minimize damage from the sun and from abrasion.
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