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Product Description

  • Intended use: Intended for use in cavity walls, accommodating cavity widths of 90-105mm supporting 100mm thick masonry.
  • Hot-dip galvanisation: Undergoes Birtleys ‘super galv’ post-fabrication hot-dip galvanisation providing a 50% thicker finish than competing products, increasing the products lifespan.
  • Weight capacity: Standard duty thickness, capable of bearing standard loads (check table below).
  • Plaster key: Features plaster key indentations on the inner leaf to aid plaster adherence.
  • Insulation: Comes with factory fitted insulation.
  • Size range: Available from 750-3900mm.
 

The Birtley ST range of insulated supatherm lintels are renowned for their efficient characteristics. Designed specifically for cavity walls with a width of 90-105mm, the ST90 provides robust structural support while also focusing on heat retention. This design minimises heat loss, in turn reducing energy costs to heat your home.

 

Materials

 

Expertly crafted from S275JR steel, the Birtley ST offers exceptional strength and durability as a result of intricate crafting processes followed by Birtley’s ‘super-galv’ post-fabrication hot-dip galvanisation. The resulting zinc coating is 65µm; 50% thicker than offered by other manufacturers leaving no surface with inferior paint or corrosion protection.

 

Installation and usage

 

Used for its low U value to achieve net zero standards, the ST is designed for effortless installation. The ST90 lintels are strong but lightweight and do not require propping, significantly simplifying the installation process. For optimal stability, the lintel must be positioned on a bed of bricklaying mortar, leaving a minimum of 150mm end bearing.

 

Energy efficiency and sustainability

 

The ST90 combines advanced insulation with specialised engineering to effectively counteract thermal bridging. In order to achieve net zero standards, the ST90 is made to have a low U value, this innovative design reduces energy loss by 80% in comparison to standard cavity lintels, making buildings compliant with future regulations. By retaining more of the existing heat, the ST90 ensures superior energy efficiency and cost savings.


 

Specifications

Lintel Type
Cavity Wall
Length
3000mm
Cavity Size
90-105mm
Lintel Duty
Standard
Brand
Birtley
Product Code
BIRLINAST090AA0750
Weight
8.39kg

Delivery Information

Ready to bring your project to life? Here’s how we make receiving your order a breeze:

 

Easy Shipping Calculation: Just add items to your cart, and our system will instantly calculate the shipping rate for you, no surprises!

 

Flexible Delivery Options: Choose what suits you best! We offer convenient collection, standard delivery, and express options to fit your timeline.

 

Effortless Handling for Heavy Goods: For larger items, we ensure a smooth delivery by offloading to the nearest kerb with a crane or tail lift.

 

Special Rates for Large Projects: Have a big project in mind? Contact us for repeat deliveries, and we’ll gladly discuss special discounts to help your budget go further.

 

Free Delivery for Larger Orders: For orders above a certain value in selected areas, we’ll deliver your goods free of charge.

 

Shop confidently with us, knowing you’re supported every step of the way!

Customer Reviews

ST90 Thermally Broken Cavity Lintel | 100mm Cavity

Product Code BIRLINAST090AA0750