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Daily Archives: November 6, 2015

Unique Category elevators

Unique Commercial elevators

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There are many different types of elevators available for commercial use. Grant Residential Elevators has the expertise and experience in designing, manufacturing, installing and servicing lifts and elevators.

The earliest types of elevators are in-ground elevators that are based on a single stage hydraulic jack which is located right under the car. A variation to this traditional design is the in-ground side / rear slung type of elevator. While the in-ground elevators are the most economical and easiest to install, these may not be very suitable for areas with high seismic activity as there is a serious possibility of oil contamination in the ground.

The next categories of elevators use wire ropes along with two hydraulic jacks and are termed as twin jack roped hydro elevators. Due to the use of two jack and wire ropes this design provides maximum structural stability. The cantilever roped hydraulic elevator, just like the twin jack roped hydro elevators, also employs wire ropes along with hydraulic jacks. Both these designs allow the car to raise two feet for every one feet of rise of the hydraulic jack.

In recent times, the elevator designs have incorporated geared machine, ropes, and counterweights which have replaced the hydraulic equipment. This design is termed as traction elevators and it has guide rails and additional counterweight rails located on each side of the car. While the geared machine is usually located, along with other related equipment, in a machine room located at the top of the building, it is also possible to locate the same in the basement. This type of elevator design has much higher power efficiency and allows much higher car speeds as compared to its predecessors. On the negative side, traction elevators are more expensive to install and difficult to maintain.

The latest designs, namely, traction Machine Room Less (MRL) elevators, have replaced the geared machine (as in traction elevators) with a gearless machine. Since the gearless machine can be installed inside the hoist way there is no need for a machine room thereby saving valuable floor space. While these elevators are lower in cost as compared to other elevators, they are more difficult and expensive to operate and maintain. These elevators are most suitable for low to mid rise commercial buildings.

installing a pool

Should and should nots for installing a pool

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A pool may well be a key ingredient of your “dream” home, however, there are a few things to keep in mind while planning one.

The first and foremost element to be considered is the underground rock structure. This is crucial for drawing up a reliable estimate of the digging costs. Presence of hard rock surfaces would require blasting, thereby, substantially increasing costs.

Secondly, one needs to decide on the type of pool one would like to install. There are broadly three types, namely, concrete, vinyl lined and fibre glass. The Riverina Fibre Glass Pools only the highest grades of vinyl ester resins and glass fibre products available in the manufacture of pools, thus making it a hassle free pool installation.

The advantage of concrete pools is that they can be constructed in any shape or size and can be easily remodelled.

Concrete pools are the strongest when compared to the other two types, even though the time taken for construction is much higher (ranging from 3-12 weeks). Vinyl pools, on the other hand, are available only in a few shapes. While vinyl pools can be constructed in fairly less time (1-3 weeks) they are a bit difficult to maintain as one needs to avoid use of sharp objects in the pool to avoid puncturing the vinyl wall. Given that fibre glass pools are pre-moulded and just need to be installed into the pit, these are the quickest to install. However, the available shapes and designs are quite limited.

The third key element to be taken into account is the kind of circulation system (a system which keeps the pool clean and sanitized) to install.

The fourth element which one needs to work out is the cost of the pool. This would be influenced by the nature of the underground rock structure (as discussed above), type of pool, size, circulation system and any accessories which you may want to install.

Since pools in residential area are subject to building regulations one needs to get the required approvals from the local government before initiating construction.

In addition it is also important to plan an appropriate siting of the pool on your property. Experts suggest that the pool should be sited such that it has enough sun to keep the pool warm and should be away from low lying areas to avoid flooding.