Description
At 180 mm or 200 mm of insulation, no shorter plug in the LTX-10 series can reach the masonry — the board depth alone consumes the entire length before the substrate is even touched. The Klimas LTX 220 mm is built for exactly that problem: the longest hammer-driven anchor in the range, supplied in 100-piece boxes rather than the 200-piece format used across every other length, and specified for the certified Passive House and near-zero energy builds where insulation depth is the headline of the whole facade.
What the LTX 220 mm Plug Does in a UK EWI System
The Klimas LTX 220 mm polystyrene fixing plug is the maximum-length hammer-in anchor in the LTX-10 series, certified under ETA-16/0509 to ETAG 014 for fixing 180 mm EPS or XPS boards on new-build masonry with a true 30 mm anchorage depth. Supplied in 100-piece boxes from the insulation fixing accessories range, it is the only LTX variant that reaches the board thicknesses specified on certified Passive House and near-zero energy projects.
The 100-piece pack is the defining commercial fact of this SKU. The longer sleeve means each plug occupies more material and box volume than shorter variants, so the count is halved to keep pack dimensions and weight manageable on a working scaffold. Coverage per box falls to roughly 12–17 m² at 6–8 fixings per square metre — around half the area a 200-piece box of shorter plugs covers.
Like every LTX-10 variant, the body is polyethylene and the expansion pin is glass-fibre-reinforced polyamide, so no metal pathway runs from substrate to render. Each fixing delivers 0.001 W/K at surface mount and a true 0.000 W/K when recessed and capped, which is the thermal discipline that lets a Passive House U-value calculation survive contact with the construction site.
Why Trade Specifiers Choose the LTX 220 mm Plug
- The only LTX length that reaches 180–200 mm boards: the 220 mm fixes 180 mm boards on new-build masonry and 200 mm when immersed — the maximum insulation thicknesses in the Renders World range, tied to Passive House certification, where no shorter plug provides adequate anchorage.
- Engineered for the highest-stakes thermal builds: at 200 mm insulation the U-value per square metre is the largest thermal investment in the domestic range, and all-plastic construction at 0.000 W/K immersed protects every fraction of the calculated performance a certification outcome depends on.
- Retrofit coverage to 180 mm over existing plaster: on walls carrying 20 mm of old plaster, the plug fixes 160 mm boards at surface mount and 180 mm when immersed, reaching the deepest thicknesses specified under EnerPHit retrofit and PAS 2035 whole-house upgrades.
- Glass-fibre pin tested at range-maximum length: at 220 mm, pin rigidity becomes the determining factor of a consistent install, and the glass-fibre-reinforced polyamide holds the stiffness needed to drive cleanly through the longest hammer path in the range.
- Manageable 100-piece pack on site: half the pack count of shorter LTX variants keeps each box at sensible weight for single-person handling and matches the lower per-project volume of Passive House work, so boxes turn over without long storage.
- ETA-16/0509 across every substrate including both AAC grades: the assessment covers concrete from C12/15, solid clay and calcium silicate brick, perforated brick including Porotherm 25, lightweight aggregate block, and both autoclaved aerated concrete density grades.
Technical Specifications — LTX 220 mm Data Sheet Highlights
| Parameter | Value |
|---|---|
| Product code | LTX-10220 |
| Plug diameter (dk) | 10 mm |
| Overall length (Lk) | 220 mm |
| Flange diameter (Dk) | 60 mm |
| Anchorage depth (heff) | 30 mm · 50 mm in aerated concrete |
| Drill hole depth (h0) | 40 mm · 60 mm in aerated concrete |
| Body material | Polyethylene (PE) |
| Pin material | Polyamide + glass fibre (PA + GF) |
| Washer stiffness | 0.50 kN/mm |
| Thermal transmittance (χ) — surface mount | 0.001 W/K |
| Thermal transmittance (χ) — immersed mount | 0.000 W/K |
| New-build board thickness — no cutter | 180 mm |
| New-build board thickness — with cutter | 200 mm |
| Retrofit board thickness (20 mm plaster) — no cutter | 160 mm |
| Characteristic pull-out (LTX-10220 length row) | 0.50 kN |
| Certification | ETA-16/0509 (ETAG 014) |
| Pack quantity | 100 pcs |
How the LTX 220 mm Plug Installs in a Render or EWI System
The LTX 220 mm enters the ETICS build-up after the adhesive bonding the board to the substrate has fully cured — typically 24 hours on EPS at +20 °C. A 10 mm hole is drilled through the full board thickness and 40 mm into the masonry, the plug body is inserted until the flange sits flush against the board face, and the pin is driven home until the head seals against the sleeve collar. Basecoat with embedded mesh then covers the flange, preparing the surface for the high-specification render finish typical of Passive House facades.
- Fixing density: typically 6 plugs/m² in central zones, 8 at corners and edges, rising to 10 on exposed elevations above 15 m.
- Drilling depth: 40 mm into solid masonry, 60 mm in aerated concrete, drilled around 10 mm deeper than embedment to clear debris.
- Immersed option: recess the plug with an EPS hole cutter and cap with a grey EPS finishing cap for a flush plane and 0.000 W/K per fixing — standard method on Passive House work rather than an upgrade.
Fixing density follows the project wind-load calculation, not a fixed rule. The fixing pattern and spacing calculation method sets out the layout aligned with ETAG 014 wind-load categories, and the step-by-step insulation fixings installation guide covers substrate assessment, drill-mode selection, and pin-drive technique in full.
Installation Notes — Pack Planning, Bit Reach, Hole-by-Hole Discipline
Pack planning is the first install consideration that sets the 220 mm apart from every shorter LTX variant. A semi-detached or detached Passive House new-build at 180–200 mm insulation typically needs 500–800 fixings across all elevations, which is five to eight 100-piece boxes — roughly double the box count of a 200-piece format for the same total. Stage delivery and storage accordingly, and brief supervisors that mid-project reorder lead time at this specification level affects the programme more than on standard builds.
Drill bit reach is non-negotiable at this length. A standard 210 mm SDS masonry bit cannot reach the substrate through 180–200 mm of insulation plus 40 mm of anchorage. A 300 mm bit is the absolute minimum, and a 350 mm bit gives the operator the clearance margin that produces consistent hole geometry across an elevation. Bit wear is the fastest of any plug in the range, so budget for one replacement per 300–350 holes to hold hole diameter within the certified tolerance.
Hole-by-Hole Verification
Every hole at this depth needs depth verification with a calibrated stop, dust clearance via mechanical passes plus a compressed-air burst, and a perpendicularity check before insertion. Over-drilling by 10 mm at this length creates a void behind the expansion zone that stops the wings bearing against solid masonry, and unlike at shorter lengths the void is impossible to detect once the plug is seated. That is why immersed mounting and documented checks are the norm on this SKU.
Pro Tips From UK Installers Using the LTX 220 mm Plug
At Passive House investment levels a few habits move from good practice to scheduled work, because the thermal envelope has to perform exactly as drawn.
- Book quality verification as a fixed programme line item. Verify three fixings per elevation for depth, dust clearance, perpendicularity, and pin seating before basecoat — a documented step, not an end-of-day visual scan.
- Recalculate box counts on the 100-piece format. Estimators used to the 200-piece LTX range can halve out of habit; the 220 mm pack is already halved, so 600 fixings is six boxes, not three — flag this SKU separately on the order sheet.
- Carry a 350 mm bit, not just 300 mm. The extra length keeps drilling rhythm quick because the operator does not fight to extract the bit from a tight hole; on a 700-fixing job that rhythm difference saves the better part of a day.
- Tighten bit replacement to 300 holes on AAC and lightweight block. The certified pull-out on these substrates is sensitive to hole-diameter creep, so a shorter replacement interval protects the design figure.
- Immerse every plug, on every elevation. A Passive House U-value assumes the envelope performs as drawn; surface-mounted fixings at 0.001 W/K repeated 600–700 times introduce a measurable gap, and countersinking is the cheapest way to close it.
How the LTX 220 mm Compares to Sibling LTX Plug Lengths
The LTX-10 range runs nine lengths from 70 mm to 220 mm on one shared body, flange, pin, and ETA certification — only the sleeve length changes. The 220 mm is the range maximum, sitting above the 200 mm deep-renovation plug and the 180 mm Part L compliance length. It is the one variant in a 100-piece box, and Renders World stocks all three so a mixed-thickness elevation runs a single drill cycle.
| Variant | Key spec | When to choose |
|---|---|---|
| LTX 180 mm (200 pcs) | 140 mm new-build · 120 mm retrofit | 140 mm Part L compliance |
| LTX 200 mm (200 pcs) | 160 mm new-build · 140 mm retrofit | 160 mm deep renovation |
| LTX 220 mm (this product) | 180 mm new-build · 160 mm retrofit | 180–200 mm Passive House |
Is the LTX 220 mm Plug Right for Your Project?
- Fixing 180 mm EPS or XPS on new-build masonry, or 160 mm boards on retrofit walls over 20 mm plaster: the 220 mm is the matched certified Passive House and near-zero energy specification, paired with a grey EPS cap for a flush finish. Immersed mounting extends new-build reach to 200 mm boards.
- Stepping down to deep-renovation thicknesses? The LTX 200 mm plug in the comparison table above matches 160 mm boards in the larger 200-piece format that suits higher-volume projects.
- Stepping down to Part L compliance thicknesses? The LTX 180 mm plug in the table matches 140 mm boards on standard Part L specifications and is the most common length on current new-build EPS work.
- Need the boards to match? The graphite EPS insulation boards stock 180 mm and 200 mm in matching pack sizes, ready to pair with these plugs on one order.
- Specifying mineral wool for fire-rated or high-rise façades? Higher-density mineral wool and fire-strategy requirements typically call for metal-pin fixings with greater pull-out capacity under current Approved Document B guidance; the wider fixing accessories range includes suitable variants.
FAQ — LTX 220 mm Coverage, Pack Format, Ordering
Why is the 220 mm sold in 100-piece boxes when every other LTX variant comes in 200?
The 220 mm is the longest plug in the LTX-10 range, and the extra sleeve length means each unit occupies more material and packaging space than shorter variants. A 100-piece box keeps overall weight and dimensions at the level suited to single-person handling on a scaffold, where a 200-piece box of 220 mm plugs would be impractical to lift and stack. When estimating quantities, allow that each box covers roughly 12–17 m² at 6–8 fixings per square metre, about half the coverage of a 200-piece box of shorter plugs.
What is the maximum board thickness this plug can secure?
On new-build substrates with a 10 mm adhesive layer, the 220 mm plug accommodates boards up to 180 mm at surface mount and up to 200 mm with immersed mounting using a hole cutter. On retrofit substrates carrying 20 mm of existing plaster, the range is 160 mm surface-mounted or 180 mm immersed. These are the maximum thicknesses in the LTX system; beyond 200 mm, the standard ETICS fixing approach gives way to anchorage strategies designed for ultra-thick builds.
Can I install the 220 mm plug with a standard 210 mm SDS bit?
No — at this plug length with 180–200 mm boards plus 40 mm anchorage, the required total depth exceeds a 210 mm bit's reach once chuck depth and operator clearance are subtracted. A 300 mm bit is the practical minimum and a 350 mm bit is preferred for consistent rhythm across an elevation. Bit wear is the fastest of any plug in the range at this depth, so factor one replacement per 300–350 holes into the material list.
How does the plug perform on autoclaved aerated concrete blocks?
Characteristic pull-out on AAC varies by density grade: 0.50 kN on AAC 2 (lower density) and 0.60 kN on AAC 7 (higher density). Both meet the design requirements for standard domestic EPS insulation under typical UK wind-load conditions, though the difference matters on exposed elevations where the wind-load calculation runs close to the design margin. The 50 mm anchorage depth for aerated concrete, with a 60 mm drill hole, is essential — driving to the standard 40 mm compromises the certified performance — and rotation-only drilling preserves the block's cellular structure.
How many boxes are needed for a Passive House detached property?
A typical detached Passive House new-build presents 80–120 m² of external wall area depending on storey height and gable configuration. At 6 fixings per square metre in central zones rising to 8 at corners and edges, total requirement falls between 500 and 800 fixings — five to eight 100-piece boxes. Ordering one additional box as reserve is sensible at this level, since misdrilled holes are more likely at 220 mm depth and the lead time to source a replacement mid-programme can affect the certification inspection schedule.
Does the all-plastic construction support Passive House environmental criteria?
The polyethylene body and polyamide pin are recyclable thermoplastics, and the cardboard packaging enters standard paper and card recycling streams. All-plastic construction carries lower embodied carbon per fixing than steel-pin alternatives, which contributes to the whole-life carbon and embodied-energy calculations integral to Passive House and EnerPHit frameworks. On a building with 600–800 fixings, the cumulative difference between all-plastic and steel-pin systems is a measurable line in the certification dossier, and Renders World holds the full LTX range in matched lengths to keep specification simple.
Technical Documentation — LTX-10 TDS and Anchorage Reference
- Klimas LTX-10 Product Data Sheet (PDF) — covers all LTX-10 length variants including the 220 mm anchor, with the full selection and strength tables.