Single ply membranes are pre fabricated sheets rolled onto the roof and attached with mechanical fasteners adhered with chemical adhesives or held in place with ballast gravel stones or pavers.
High albedo roof pavers.
In los angeles the average roof albedo is about 0 17.
A sample.
On a sunny day a roof that strongly reflects sunlight can stay much cooler than a roof that absorbs sunlight.
Designers can choose from a variety of colours textures patterns and sizes to create a unique outdoor environment.
This roof has a high albedo and reflects about 63 of the energy from sunlight.
High albedo concrete is a special type of pavement that reflects more light than dark colored materials due to its lighter color.
In contrast the concrete and interlocking concrete paver pavements generally have a higher albedo and give a lower pavement temperature since more incident solar radiation is reflected from the surface 41 49.
A sample cool roof.
Concrete s high albedo means more light is reflected and less heat is absorbed resulting in cooler communities.
By preventing a majority of the heat from ever reaching the surface these roofs work to greatly reduce hvac cooling costs during the summer months.
Pedestal systems effectively draining water from a roof or plaza is a critical issue for every building.
Studies have shown that concrete s reflectivity can lower lighting costs by as much as 30 over other pavements.
Slabs are precision fit with a consistent thickness and a slip resistant finish.
Built up roofs consist of a base sheet fabric reinforcement layers and usually a dark protective.
This causes the concrete to maintain a lower surface temperature resulting in less energy needed to cool buildings and less energy consumed by nighttime lighting not to mention reducing the heat island effect found on many asphalt parking lots in the summer.
Following the simulation results show that cool walls with an albedo rating of 0 9 showed very similar temperature reductions as that of high albedo cool roofs.
The relatively low albedo of asphalt pavements will present a high surface temperature due to absorbing more incident solar radiation.
The average albedos of different pavement sections used in this current study range from 0 08 to 0 29.
The cool wall had a temperature reduction of 0 054 k 0 1 albedo whereas the cool roof had a reduction of 0 059 k 0 1 albedo.
Roof ballast slabs are suitable for.
Roof ballast slabs offer the strength durability and beauty of natural stone with the potential for time and cost savings because of their ease of installation.
As one would expect albedo roofs are formulated with special high eminence materials that keep project a high level of thermal energy back into the atmosphere.
Manufacturers of concrete unit pavers for over 40 years for on grade and roof applications for architectural commercial and residential projects.
Reformulate or coat black membranes to make them reflective.
By using an elevated paver system water is channeled away from the roof surface reclaiming lost space.