Frequently
Asked Questions
-
There are many advantages to the JJack Construction method although the key advantages are:
Construction time is significantly reduced, up to 30%
Eliminates the need for 2-storey scaffolding
No scaffolding blocking access means more space on small sites
No need to gain access to neighbours lot for scaffolding
Safety of working improves with no working at heights
Less interruption of trades when working at ground level
Cranes rarely required for construction at ground level
Build close to, and sometimes under, power lines
Very tidy and uncluttered site results in more room for materials and rubbish
Any size building can be lifted so design is flexible
-
Yes, due to the requirement for lifting the building, the structure needs to be designed, engineered and built to our proven jJack lifting specifications. ext goes here
-
The degree of structural change required varies from build to build and depends on your design. Once we have received your plans we will be able to advise you.
The changes usually include additional footings for our precise lifting jacks, lifting beams, columns and braces.
Some of the normal building practices and materials will not be needed resulting in cost savings. For example; the ground floor lintels only need to support ground floor structures, the upper floor structure is supported by the lifting beams.
-
The cost is usually less than conventional construction methods. The build time is much faster and lifting has also provided numerous other associated advantages including more site space and savings on scaffolding, cranes and much more.
How much time does it save?
-
The results vary from build to build although we have found that it usually reduces build time by 30% compared to conventional methods.
-
Yes, virtually any building can be lifted. Some buildings are more suited by virtue of their design being more suitable.
We can lift 3 storeys with concrete floors or 5 to 6 storeys with light weight floors and walls.
-
Yes, any size or configurations can be lifted
-
We have lifted existing houses to build under them and we can also shift them on the site to allow for subdivision or just relocate for other reasons.
-
Yes, we have lifted buildings with double brick and concrete slabs as the lifting process is very precise.
We can also move masonry buildings and/or build under them.
-
The Jjack system has been used to lift three storey buildings and also for various other applications include industrial, mining and commercial.
We can raise the height of existing factories and warehouses no matter how large they are.
We can build roofs at ground level and raise them for building under.
We can lift tanks, machinery, air craft etc.
-
The lifting process is very precise and synchronised. Using our own proprietary solution, the jacks are controlled to within 3 millimetres.
Even with vastly different loads they have very small variation, which means we can add more jacks to lift larger buildings with almost no limit.
-
JJack:
Can lift buildings with a concrete slab to the upper floor
Can lift buildings of any size
Can it lift buildings of any weight
Is suited for buildings with wide eaves
Can lift multiple buildings at once? I.e. Units/Apartments
Does provide minimal to zero deflection during lifting
Is stable in winds of up to 25 knots
Can be operated without a working at heights permit
Can lifting next to or under power lines
Can be used at sites where there is no vehicle access
Can only lift structures vertically
Suits factory and site built buildings
Can lift buildings with zero lot walls
Operates with no damage 90% of the time
-
Lifting is a process of many steps, it could take 2 days or more and we will only proceed when everything is exactly right. This unfortunately means we can't give you an exact time.
However, we can organise group events on the appropriate sites that you could attend so please contact us to discuss
-
Send us your plans and we will give you our initial report with an estimate of cost and the process involved taking into consideration the site and other factors