What is the difference between a solid and suspended ground floor
Lily Fisher
Published Feb 25, 2026
Solid floors are a lot more substantial and require the ground to be made up in layers of ground sub base, sand, compacted hard core, damp proof membrane, insulation and concrete. Suspended floors are normally made up of 2 materials, either timber joists or a concrete beam system.
What's the difference between a solid floor and a suspended floor?
Solid floors are a lot more substantial and require the ground to be made up in layers of ground sub base, sand, compacted hard core, damp proof membrane, insulation and concrete. Suspended floors are normally made up of 2 materials, either timber joists or a concrete beam system.
What is a suspended floor called?
Suspended timber floors, which are typically found in older houses, are normally made from timber floorboards which are then attached to joists just above the foundations of a house.
What is a suspended ground floor?
A suspended floor is a ground floor with a void underneath the structure. … Supports underneath the floor are permanent and include sleeper walls or timber props placed at regular intervals. Unlike standard ground floor construction, suspended floors are not sitting directly on the ground.What is a solid concrete ground floor?
A solid ground floor consists of a layer of concrete, which in the case of a domestic building will be the surface layer brought up to ground floor level with hardcore filling under it. The advantage of a solid ground floor is the elimination of dry rot and other problems normally associated with hollow joisted floors.
What are the advantages of using suspended timber floor?
Suspended timber floor insulation will help you keep the desired temperature in your house all year round, saving it against cold in winter season and excess heat in summer season. A well-insulated house is very energy efficient and it will require very little additional heating and cooling according to requirement.
Why do some houses have suspended floors?
Suspended concrete flooring systems were originally developed as a means of overcoming ground problems such as unstable sloping sites, where it made sense to bridge deep gaps rather than fill them. Today, nearly all new houses employ beam and block construction for their ground floors.
How do I know if my floor is suspended?
The easiest way to differentiate between solid concrete and suspended timber is the “heel drop test”. Basically, stamping or jumping on the floor! Is there is any give to the floor or reverberation of the furniture in the room? Then chances are that it is a suspended timber floor.How do I know if I have a suspended floor?
The easiest way to find out if you have a suspended floor is to go outside your house, and search for air vents or ventilation bricks at the bottom of your outside walls. If you see some, it is likely that you have a suspended floor.
What is a suspended slab?The suspended slabs are the above-ground level concrete slabs that are not in contact with the earth directly. These slabs are used to create floors for upper stories of homes, but sometimes these are often sat on top of the pre-constructed walls to create a ground floor.
Article first time published onWhich type of concrete is used for flooring?
Cement concrete flooring is one of the most common types of flooring used in both in residential as well as public buildings owing to its non-absorbent nature and thus it is very useful for water stores, durability, smooth and pleasing in appearance, good wearing properties, easy maintenance and is economical.
What type of concrete is used for floors?
Floor mixes usually contain Type I or Type II portland cement. Shrinkage-compensating concrete (SCC) mixes made with expansive cement is another option for durability.
Can you put underfloor heating on a suspended floor?
Underfloor heating can be installed on any suspended timber floor with wooden joists – whether on ground or upper floor levels. Warm water underfloor heating (UFH) in a suspended timber floor offers all the benefits associated with this form of heating without adding height to the overall floor construction.
Which is cheaper concrete or wood floor?
Yes, concrete floors are generally more affordable than hardwood floors. Generally, a concrete floor costs between $2 and $15 per square foot, while hardwood floors cost between $12 and $20 per square foot, according to Floor Critics.
What is typical thickness of suspended concrete slab?
Standard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks.
What are the 3 types of foundations?
Foundation types vary, but likely your house or home’s addition does or will have one of these three foundations: full or daylight basement, crawlspace, or concrete slab-on-grade.
What is a suspended garage floor?
Suspended (or structural) garage floors are supported by the foundation, instead of the ground. Most slabs simply rest on grade and have no structural function. They are often not supported by the garage foundation.. Garage floors that are suspended require special attention.
What is timber upper floor?
Timber upper-floors can be divided into two types—single and double. Single floors are those that have their joists spanning from one wall to the other without any intermediate support; double floors are those that have their joists supported (by beams) between the supports at their ends.
What kind of concrete do you use for a basement floor?
Concrete is the most commonly-used material for basement floors because it is inexpensive, durable, easy to work with and versatile. Smooth concrete can be easily covered with your choice of flooring, made to look like marble or stone or even just painted.
What is the lightweight concrete?
Lightweight concrete is a mixture made with lightweight coarse aggregates such as shale, clay, or slate, which give it its characteristic low density. … It is being increasingly used to build sleek foundations, and has emerged as a viable alternative to regular concrete.
How do you lay a solid concrete floor?
- Hardcore or a Type 1 floor seal is compacted using a whacker plate.
- Sand blinding will take place if necessary.
- A damp-proof membrane is put down.
- Concrete is poured and left to cure — for a minimum of three days.
- Insulation is put down.
- Underfloor heating pipes are put in place if necessary.
Is it worth insulating a suspended floor?
Insulating a suspended timber floor can eliminate floor draughts and reduce heat loss through the fabric of the floor at the same time. From a thermal comfort perspective, it does appear that feet are particularly sensitive to colder temperatures, so addressing floor draughts can help improve comfort levels.
How much heat is lost through a suspended floor?
While the two flooring types are very different, the general estimated heat loss for all flooring is around 10%.
Does suspended floor insulation cause damp?
One of the things you should see around the outside of a house which has suspended timber floors are sub-floor air-bricks. … Other reasons for sub-floor condensation occurring can be leaking plumbing pipes within the sub-floor void which can lead to excess water and humidity within the sub-floor void.