POROTHERM HP are available in 6 sizes, VP bricks are available in 3 sizes

Better thermal insulation (lower U-Value) means cost saving through less energy consumption e.g. for A/Cs (less energy gets lost through the external walls) better indoor climate without A/C.

POROTHERM HP & VP has hollow voids which reduces heat transfer thus acts as an insulator lowering the U Value of the product.

AAC bricks do not have any voids in the sense of “bigger” holes however they have a lot of small pores within the mass hence the total quantity of air is higher than POROTHERM products (density 600kg/m³ for AAC compared to 750kg/m³ for PROTHERM HP & VP) hence lower U Value.

Perforations are horizontal and Vertical  

No, they are extruded and then wire cut as per the length.

The water absorption of Porotherm clay hollow brick is not higher than concrete bricks. Porotherm Clay Hollow Bricks have the lower absolute water absorption (e.g. amount of water in one m³ of wall).

As water absorption is measured in percentage by weight, a comparison on percentage is misleading. The comparison shall be made on the total amount of water which can be absorbed by e.g. one m³ of wall.

Total MAXIUMUM amount of water in one cubic meter of masonry is:

Furthermore, the capillary (thin interlinked pores and channel) structure of the clay (achieved through additives in the clay blend – rice husk, saw dusk) enables faster drying of the bricks compared to all other competitor products.

Temperature in dryer is 65 -70^o Deg C

Temperature in Kiln is 900^o Deg C

Clay building product with high strength

Sizes same as concrete bricks – HP 200, HP 150, HP 100

Light in weight – 60% lighter as compared to solid concrete bricks reduce Dead Loads

Structural Savings - 11 – 15% Savings on Structural Cost (Steel & Concrete)

Green building product

Energy Efficiency – “U” Value within 1.25 W/m²K as per Green Building Norms

Material with Recycled content – Granite Slurry, Rice Husk & Saw Dust

Local Material – Lead distance within 500 Kms.

Unlimited life

De-Silting tanks - We source clay by de-silting tanks, which in turn help tanks store more water thus revitalizing water bodies  

Factory is located at Kunigal industrial area Phase II, Gottikere village, Karnataka, around 70 kms. from Bangalore.

The main component in these bricks is clay; additionally, we add Mines clay, Coal ash, Paddy/rice husk and Stone slurry, Grog.    

Manufacturing process can be briefly split into few main steps

• Sourcing the suitable clay after inspection and testing from experienced Geologists
• Clay preparation – Batching (proportionately adding all raw materials), mixing, primary  milling, secondary and Saoking.
• Extrusion – Extracting bricks from a mouthpiece of specific shape & size. Extrusion of the clay with an automated vacuum extruder through specially designed dies
• Drying – Drying the extruded bricks in automatic dryers with controlled atmosphere. This process uses the thermal energy from heat recovered from kiln and heat generated from Biomass
• Firing in the kiln – firing the bricks in an automated kiln with the clean fuel ‘Natural Gas’
• Unloading and Packing – once the bricks are fired, they are unloaded automatically by robots and passed to packing after inspection for quality online. Then sent to stockyard for dispatch

Our plant capacity is 195,000 Tons per Year.

In terms of HP 200 bricks it would be around 1.68 crore bricks per year.

Finished goods are well stacked and stored on the stock yard well segregated in different sizes.

Same as done with Conventional masonry.

Half bricks are available, still if it needs to be cut it can be cut by help of

•  Table Saw
•  Hand Grinder Cutter (Electric) and then chiseled out in two halves
•  Chisel & Hammer

• Mark the Conduiting path
• Chase with Grinder cutter
• Chisel out the chased portion for Conduiting by help of a chisel & Hammer

Refer Technical manual and explain by help of a sample wall (turn half block vertical or smearing voids).

They would not have water seepage problem from the voids or the bricks as absorption is low.  

The standard outer wall is 200 mm (In fill). Non-Load bearing could be between 150 and 200 mm (Minimum is 150 mm).

Inner wall thickness 100 to 150 mm, it mostly depends on the requirement of Conduiting. 

Non load bearing > 35kg/cm² (required as per IS 3952).

POROTHERM HP achieves comfortably – 40 - 50 Kg/cm2.

No there will not be any drop in the compressive strength unless you break more than half of the brick perforations.

We recommend lime cement mortar, however sand cement mortar as currently used can be very well be used.

• Plastering
       1. 1 Part of cement to 5 - 6 parts of sand
• Non load bearing (infill) walls:

        1. HP 200 & HP 150 1: 6 (cement, sand)

        2. HP 100 1:4

• Load bearing walls:

        1.  1: 4 (cement, sand)

One can nail provided the nail tip is sharp and strong / hard enough or use manual hole making tools. One needs to use a drill machine

Recommended Fixation techniques:

• Light items: Hole with drill or jumper & wood pieces & Nail or Screw
• Heavier items: normally rack bolts (1-inch hole, filled with cement paste, install rack bolt, filled again with cement paste)

No, we recommend plastering, to protect the outer walls against physical damage, protect against water seepage through joints.

Outside: 25 mm (to guarantee water protection): (5 mm spatter dash; 15mm plaster; 5 mm fine plaster)

Inside: 15 mm

The plaster is done in two coats, the first coat would be coarse Sand cement plaster, and the second coat will be smoother. 

Porotherm clay bricks have a far better drying behavior than all other walling materials. This is due to its thin capillary structure which facilitates the transport of the moisture from inside the brick towards the surface where it can easily evaporate on the block surface. 

The consumption will approximately be the same. We recommend an average thickness of 12 mm, however the joint thickness should be between 10-15mm. Compared to smaller sizes (bricks) there is a significant reduction in mortar consumption. 

The plaster thickness will be the same. It will be possible to save on plaster with our POROTHERM Clay Hollow Bricks due to industrial production and dimensional stability. 

As the weight of the bricks is less as compared to its volume (Volume same as concrete blocks) the masons and labors find it easy to lift and construct a wall even at higher heights or when they are working on scaffolding. This boosts the productivity and the activity is less tiring to the masons.

Shifting of bricks is as well faster and easier. Hence speed of construction enhances.

Efflorescence is deposit of salts on the surface, the salts are transported by water from within the wall mass. Salts can be present in water, cement, sand etc.

Clay bricks are well burnt and tested for efflorescence, the efflorescence may be within limits “Slight” in POROTHERM bricks.

Efflorescence can not be removed at one go, it needs to be cleaned by dry brushing or wash by diluted acid or prevent water ingress.

There is no direct remedy for efflorescence.

Efflorescence does not have direct effect on structure it adversely affects the aesthetics of the building.      

Inter State – CGST – 6%, SGST – 6%

We take utmost care while loading and transportation, Still 1 to 2% can expect due to road Conditions

Yes! Client can arrange for their own transport, but then company responsibility ceases from the factory limits and further transport responsibility lies with the client who arranges for his own transport.

HP 200 (400x200x200) brick equals 9 standard size (230*110*75) bricks.

AAC blocks are 1.5 times bigger than POROTHERM 

We did independent structural studies which showed that the savings on steel and concrete (Structural cost) are in the range of 25 – 30 (G+4), 30 - 40 (G+ 12) INR per sq. ft. built-up area as compared to heavier solid concrete bricks.

We save, in steel & concrete in columns, beams & footings the savings are because of reduction in dead loads as POROTHERM HP is light in weight as compared to solid concrete block.

The bricks are supplied in 10 Ton to 25 Ton trucks.

Each bundle would accommodate

HP 200 – 85 Bricks

HP 150 – 115 Bricks

HP 100 – 170 Bricks

16tonn vehicles very rare in market.

Size of one bundle is 1.2 m³ (L = 1.2m, W = 1m, H = 1m).

As such we can transport anywhere and everywhere but looking at transport cost we prefer transporting in locations situated in southern part of India.