FAQ | L2L HOMES

FAQ - BASE STAGE INSPECTION

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WHY DO I NEED BASE STAGE INSPECTION?

There is no doubt that a good house need to be built on the solid foundation. Any minor problem exists in the base stage now could become a huge problem in the future and it is very hard and expensive to fix. So hire a profession engineer to have the base stage checked before poured could save you hassle free and thousands of dollars in the future.

WHAT ARE THE COMMON DEFECTS IN BASE STAGE?

Steel reinforcement not fully lapped and tied securely
Steel reinforcement exposed without 20mm concrete cover as per the BCA/NCC reference which will cause the steel to corrode and expand then future cracking to slab
Not additional bars be placed around the under slab pipe opening when slab fabric wires are cut
Honeycombing of concrete exist due to lake of vibrating

WHAT IS SCREW PIER?

Screw pier aka screw pile is a great alternative to using traditional stump. The pier is long steel tube with a screw head at one end which is screwed into the ground and the other end that sticks up is capped with a circular platform on which the house frame rests. Screw piers can be installed quickly and efficiently, as they don’t require pre-dug holes or concreting in, meaning you can set the frame up as soon as the piers have been capped. This can provide a significant time and cost advantage on installation.

WHAT IS EXPANSIVE SOIL AND HOW IT WILL AFFECT THE FOOTING?

Expansive soils swell and shrink proportionally with available water content. In summer, when evaporation is dominant these soils dry out and shrink causing the ground surface to settle. In reverse, winter induces wet conditions and subsequent swelling causing the ground surface to rise. Seasonal variation in soil water content often causes light structures to constantly be on the move. Moreover, it is the differential moisture patterns that can exist beneath light structures that cause differential ground movements and therefore structural distress and cracking.