Wienerberger offers two innovative Porotherm systems to revolutionise your construction project
Build smarter with cavity walls featuring our versatile PLS 100, 140, and 190 blocks, perfect for inner and outer leaves, load-bearing walls, and non-load bearing partitions. Alternatively, remove the cavity with our streamlined monolithic range for a simpler, faster build.
Whatever construction style you choose, Porotherm delivers superior thermal insulation, exceptional soundproofing, enhanced fire safety, and remarkable sustainability – all wrapped in a lightweight, easy-to-install package. Discover the endless possibilities of clay construction with Porotherm.
Porotherm Clay Blocks
PLS100
Size:
500 x 224 x 100mmThermal Conductivity:
0.29W/mkCompressive Strength:
>=10 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)Weight:
10.28kgGross Dry Density:
50kg/m³
PLS140
Size:
500 x 224 x 138mmThermal Conductivity:
0.26W/mKCompressive Strength:
>=10 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)Weight:
13.15kgGross Dry Density:
850kg/m³
PLS190
Size:
500 x 224 x 188mmThermal Conductivity:
0.26W/mKCompressive Strength:
>=10 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)Weight:
17.09kgGross Dry Density:
850kg/m³
ZWP Plan-T 115
Size:
498 x 249 x 115mmCompressive Strength:
>=8.4 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
ZWP Plan-T 115 (1.2)
Size:
373 x 249 x 115mmCompressive Strength:
>=25 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
Plan T 175 (0.8)
Size:
498 x 249 x 175mmCompressive Strength:
>=12.5 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
Plan T 175 (1.2)
Size:
373 x 249 x 175mmCompressive Strength:
>=20.9 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
Plan T 240 (0.8)
Size:
373 x 249 x 240mmCompressive Strength:
>=12.5 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
PFZ T 240
Size:
373 x 249 x 240mmCompressive Strength:
>=15 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
T9 365 Half Block
Size:
248 x 121 x 365mmThermal Conductivity:
0.09W/mKCompressive Strength:
>=7.5 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
T9 365
Size:
248 x 249 x 365mmThermal Conductivity:
0.09W/mKCompressive Strength:
>=7.5 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
T7 365MW Half Block
Size:
248 x 121 x 365mmThermal Conductivity:
0.07W/mKCompressive Strength:
>=6 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
T7 365MW
Size:
248 x 249 x 365mmThermal Conductivity:
0.07W/mKCompressive Strength:
>=6 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
T9 425 Half Block
Size:
248 x 121 x 425mmThermal Conductivity:
0.09W/mKCompressive Strength:
>=7.5 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
T9 425
Size:
248 x 249 x 425mmThermal Conductivity:
0.09W/mKCompressive Strength:
>=7.5 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
T7 425MW Half Block
Size:
248 x 121 x 425mmThermal Conductivity:
0.07W/mKCompressive Strength:
>=6 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
T7 425MW
Size:
248 x 249 x 425mmThermal Conductivity:
0.07W/mKCompressive Strength:
>=6 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
T7 490MW Half Block
Size:
248 x 121 x 490mmThermal Conductivity:
0.07W/mKCompressive Strength:
>=6 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
T7 490
Size:
248 x 249 x 490mmThermal Conductivity:
0.07W/mKCompressive Strength:
>=6 N/mm² (EN 771-1)Fire Rating:
A1 (non-combustible)
U Channel
Size:
250x238x240/365mmCompressive Strength:
>=15 N/mm² (EN 771-1)
WU Channel
Size:
250 x 238 x 365/425mmCompressive Strength:
>=15 N/mm² (EN 771-1)Porotherm products & accessories
Porotherm is designed as a system and as such there are other elements that go along with the blocks.
Mortar Roller
-
Applies the correct amount of mortar (1mm)
- Easy to use and clean
- Available in 100/140, 190 & 365mm
- •
ZeroPlus Mortar
One bag is enough for one pack of blocks
Can be used at 0°C and rising
Easily mixed with a paddle mixer
Uses 95% less water than sand and cement mortar
Eco-Parge
Achieves high levels of airtightness
Easy to apply with a soft broom
Breathable to help manage moisture
Each bag gives circa 18-20m² coverage at 2mm thick
Wall Fixings
All major fixing manufacturers have products suitable for cellular clay blocks
No need to use hammer or percussion settings when drilling
Check with your usual fixing supplier for the appropriate fixing
Wall Ties
Engineered and manufactured by Leviat
A comprehensive range of standard ties available
Bespoke options can be designed and made on request
Alligator Saw & Blades
Delivers a clean, easy cut on site
Class 12 blades are suitable for cutting monolithic blocks
Class 20 blades are suitable for cutting cavity blocks
-
Applies the correct amount of mortar (1mm)
- Easy to use and clean
- Available in 100/140, 190 & 365mm
- •
One bag is enough for one pack of blocks
Can be used at 0°C and rising
Easily mixed with a paddle mixer
Uses 95% less water than sand and cement mortar
Achieves high levels of airtightness
Easy to apply with a soft broom
Breathable to help manage moisture
Each bag gives circa 18-20m² coverage at 2mm thick
All major fixing manufacturers have products suitable for cellular clay blocks
No need to use hammer or percussion settings when drilling
Check with your usual fixing supplier for the appropriate fixing
Engineered and manufactured by Leviat
A comprehensive range of standard ties available
Bespoke options can be designed and made on request
Delivers a clean, easy cut on site
Class 12 blades are suitable for cutting monolithic blocks
Class 20 blades are suitable for cutting cavity blocks
Watch this video
Using Porotherm isn't just about how you build, it's about what you build.
A thermally superior building with better indoor air quality and less embodied carbon.
National Delivery
As EH Smith is a stockist of Porotherm, deliveries can often be arranged with a few days' notice. Our fleet of lorries can deliver to site with self off-load facility. For deliveries outside of our branch network areas, we can organise for delivery using one of our delivery partners on any requested vehicle type to suit your site.
Free Demonstrations
Free training sessions are held at our Porotherm Training
Centre which are designed to teach participants
the best way to build with the Porotherm system.
Free Demonstrations
Free training sessions are held at our Porotherm Training
Centre which are designed to teach participants
the best way to build with the Porotherm system.