A house or a building structure may stand upon concrete or wooden stumps or may have a just concrete foundation. Depending upon the age, soil condition and various other factors, the stumps in the foundation may wear out, therefore requiring restumping.
House re-stumping is carried out when the tell-tale signs appear. These include the likes of cracked walls, creaking doors, and windows which are difficult to open or close and sloping floors. The stumps in the foundation are replaced with sturdy ones which can last for decades.
Wooden or Timber Stumps
These are the traditional stumps usually found in older building structures and often become prey to termites. Wooden stumps may also ‘dry rot’ as a gap may be formed between the upper and lower parts of the stump.
The soil itself may also become a cause for the stumps to wear out. Reactive soils swell up during rains and a lot of movement takes place leading to the weakening of stumps.
Wooden stumps nowadays are usually replaced with concrete or steel stumps which are stronger and more durable. However, there are modern versions of timber stumps available nowadays which are rot-resistant and can be considered in some building structures after consulting the professional services team.
Concrete stumps are much durable and are widely used in modern building structures. Concrete stumps can provide more stability, support and strength to the building as the weight of the floor can be distributed evenly. Concrete stumps can stand soil conditions far better than the wooden stumps. Very less maintenance is required for concrete stumps.
Usually, concrete stumps are made from sand, gravel, cement powder and steel reinforcing rods. Concrete stumps may wear out if there is lack of cement powder in the mix and the rusting steel reinforcement may cause cracks.
Concrete stumps due to their durability can last much longer than the wooden stumps. A safe reliable base is provided which can last for many decades.
In modern times, concrete or galvanized steel stumps are used which are much more durable and reliable than the wooden stumps. Gone are those days as modern technology has made far more efficient foundation techniques possible with the latest types of stumps available. Due to the longevity, these stumps may be expensive but guarantee a secure foundation for ages.
Restumping is quite expensive and must be done by professionals. Steel stumps may wear if not coated properly, not properly cemented above the ground level to scatter the moisture or if sub-standard steel SHS is used.
In olden times, concrete house stumps used to be prepared on-site. The hole for the stump was dug and concrete mixed with hand used to be poured while putting steel rods in places to make the stumps.
Whatever kind of stumps will be used and whichever technique is best can be recommended by professionals who must be consulted for the right guidance for taking up a re-stumping project for your building.