Weatherproofing and Protection of External Facades

Ecomerchant windy day windtightnessProtecting your building against the damaging effects of wind and rain will save you money, improve comfort levels and help prevent structural damage. 

Here you will find a selection of carefully chosen, proven materials to protect your building whilst remaining vapour open.

Even the smallest cracks allowing air to move through a structure can cause a catastrophic collapse in the performance of the insulation plus moving air cools and increases the risk of interstitial condensation where liquid water can cause significant structural decay and can cause mould or fungal growth.

There are products here to help seal, waterproof, re-point, repair, decorate, and protect building facades all are equally suitable for newbuild or refurbishment.

If you can't find what you want please call we're here to help


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  1. Stormdry No1 breathable water repellent additive for mortar 500ml

    Stormdry No1 breathable water repellent additive for mortar 500ml

    Regular Price: £25.00

    Special Price £21.50

    A concentrated liquid that is to be used as a diluted part of the gauging solution in sand and cement mortar. It is used for repointing before a Stormdry Masonry Protection Cream application. Stormdry Repointing Additive No.1 enhances the waterproofing qualities of a standard sand and cement mortar mixture whilst still allowing it to breathe.

    Each 500ml bottle will usually be sufficient to repoint 5m2 of brickwork

    Price is per bottle

    Ecomerchant Stormdry BBA logo

     

     

     

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  2. Duro Natural Lime Undercoat for Rendering and Plastering 25kg

    Duro Natural Lime Undercoat for Rendering and Plastering 25kg

    Regular Price: £13.68

    Special Price £13.27

    Duro is a practical, economic, general purpose base coat for lime plasters and renders.

    Ideal for renovation, conservation projects or eco-friendly new builds. With superior levels of breathability it is ideal for walls with damp problems, allowing moisture to evaporate easily and not remain trapped within the fabric of the wall where it can damage stone, brickwork and wood.

    For plaster (internal)  applications Duro is a general purpose ‘suits most applications’  base coat which is breathable, elastic and salt resistant. Duro can be applied to substrates such as masonry and brick. Use Solo One Coat Plaster as the finishing coat

    For render (external) applications use  Natural Finish  through-coloured render as the top coat for a perfect finish.

    Designed for restoration / eco construction and newer buidlings where a lime render finish is required

    Duro is a pure lime product completely free from cement, gypsum, acrylic, Pulverised Fuel Ash (PFA) or other unsuitable additives so is perfectly compatible with traditional building techniques.

    Approximately 1.7kg per mm of thickness over 1m². One 25kg bag will cover approx. 1.5m² at 10mm thick. This does not include any allowance for wastage.

    Price is per 25Kg bag

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  3. Baumit FillPrimer universal fibre reinforced crack filling mortar 25Kg

    Baumit FillPrimer universal fibre reinforced crack filling mortar 25Kg

    £87.42

    Fibre-reinforced, crack-filling primer

    Ready-to-use, crack-filling fibre-reinforced, universal primer for existing renders and plasters;  for exterior and interior use. Can be used on existing lime/ gypsum or cement based substrates.

    Specially developed for the repair of hairline cracks in existing external wall insulation systems

    Fills and covers cracks up to 0.5 mm.

    Solvent-free.

    NOT suitable for use on fresh renders or plasters

    Price is per 25Kg tub

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  4. Stormdry clear breathable water repellent cream for masonry, brick & concrete

    Stormdry clear breathable water repellent cream for masonry, brick & concrete

    Regular Price: £89.99

    Special Price £74.99

    Stormdry is a breathable, colourless, BBA approved, deeply penetrating, water repellent cream for brick, stone, and concrete. Due to its cream-based formulation it is able to penetrate more deeply into masonry than standard liquid-applied brick sealer products.

    Stormdry is easy to apply using a brush or roller and only a single coat application is required - many competing water repellent products require two coats.

    Stormdry's silane/siloxane technology works by lining the pores of porous bricks, rather than blocking them - allowing the wall to continue to breathe. This is in contrast to many standard brick sealer products, which coat the masonry with a thin film

    Stormdry has been specially formulated to be colourless once dry, which allows the walls to retain their original appearance once protected against penetrating damp.

    Yeild 5m2 per litre

    Price is per tub

    Ecomerchant Stormdry BBA logo

    25 Year protection in a Single Coat

     

     

    25 Year protection in a Single Coat

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  5. Lime Green Silicate mineral paint for render 12.5 litres

    Lime Green Silicate mineral paint for render 12.5 litres

    £162.71

    A highly breathable and long lasting mineral paint. It is not film forming so will never peel or blister. Suitable for over-painting existing lime render finishes Lime Green silicate paint uses waterglass as a binder and through the process of silicification actively binds to the substrate to form  a long lasting durable finish.

    Lime Green Silicate Paint in combination with renders and plasters offers the ideal properties for a healthy building. It provides low water absorption yet high vapour exchange, combined with excellent durability. Additional attributes are absolute light fastness and resistance to Ultra Violet light.

    An effective self-cleaning effect results in pure bright facades - even after many years - free from dirt and algae.

    Yeild: 0.13 Litres/m2 (approx.) Price is per tub Learn More
  6. Lime Green Ready to use silicate render finish 20kg

    Lime Green Ready to use silicate render finish 20kg

    £82.00

    Lime Green Silicate Render Finish is a ready to use decorative final coat render. Due to its silicate-mineral binder, Lime Green Silicate Render has the breathability of lime, whilst being highly flexible and weather resistant. 

    This waterglass based product maintains the breathability and flexibility of lime while giving a crisper, more uniform appearance. Available in a wide range of colours.

    Packaged in 20kg tubs, ready to use in a wide range of colours.

    Yeild; Approximately 2.8kg to cover 1m2. A tub will cover around 7mon a suitably flat background.

    Certain colours carry a small supplement  - see drop down menu

    Price is per tub Learn More
  7. Baumit UniPrimer, Breathable primer for renders and plasters

    Baumit UniPrimer, Breathable primer for renders and plasters

    £23.74

    BaumitUniPrimer is a vapour open primer used to reduce and equalise the suction of substrates, to equalise the colour of the substrate, to enhance the water repellency of the substrate, to mprove adhesion and to enabling bonding to a wide range of substrates.

    BaumitUniPrimer can be used internally and externally

    It is suitable for application on to contact mortars, lime and cement based plasters/renders, concrete and well adhered mineral, silicate and masonry paints.

    Baumit UniPrimer should be well mixed before use, normally with a plaster whisk, and then applied evenly to the surface by brush or roller.

    When using rollers it is often useful to add up to 5% water as this method applies the primer more thickly.

    The primer should then be left for 24 hours before any further coating are applied.

    Yield*: 100 – 125 m²/25 kg bucket on base coats

    20 – 25 m²/5 kg bucket on base coats

    12 m²/5 kg bucket on render coats

    Consumption [m2]*: 0.2 – 0.25 kg/m² on base coats 0.40 kg/ m² on render coats

    *Approximately, dependent on the absorbency of the substrate

    Please remember that this product should only be used between 5C and 30oC and that humidity will affect drying times for this product.

    Price is per bucket

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  8. Baumit SilikatTop Render, ready-to-use, vapour permeable, silicate thin-layer finish render coat 25kg

    Baumit SilikatTop Render, ready-to-use, vapour permeable, silicate thin-layer finish render coat 25kg

    £56.70

    Baumit SilikatTop Pre-mixed ready-to-use, highly vapour permeable, dirt-repellent, silicate thin-layer finish render coat. 

    Baumit SilikatTop is stain retarding decorative finish with scratched or dragged grain texture for internal and external areas.

    Suitable for hand or machine application. 

    Designed to protect and enhance facades on old and new mineral renders and putties, on concrete, for the protection of historic monuments, and as a renovation render.

    Available with 3 grain size:  K 1.5, K2,K3 Consumption kg/m2: ca. 2.5, ca. 2.9, ca. 3.9

    Price is per bucket

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  9. Baumit NanoporTop Render, self-cleaning pollution-resistant, ready-to-use silicate finish render 25kg

    Baumit NanoporTop Render, self-cleaning pollution-resistant, ready-to-use silicate finish render 25kg

    £79.16
    Baumit NanoporTop finish render is a self-cleaning and pollution-resistant, ready-to-use silicate, textured top coat render. The render contains photocatalystic technology for external use

    Baumit NanoporTop is easy to use, breathable, decorative and pollution resisting. Use as a finish over Baumit base coat and bonding coat renders. Perfect as a finish in areas where high weather and stain resistance is required.

    Use for protection and enhancement of façades and façade surfaces over old and new mineral renders and fillers and on concrete. For preserving historical monuments, renovations and as a topcoat with external wall insulation systems.

    Baumit NanoporTop is low stress drying, highly weather resistant, water vapour and CO2 permeable, stain resistant, non-flammable and easy to use.

    The microstructural surface, nano-crystalline and inorganic additives significantly reduce staining compared to other coatings.

    View colours by downloading the 'Baumit Life Colours' pdf, choose any colour with a black code

    Texture: K1.5 K2 K3 (K refers to maximum aggregate size in mm) Consumption kg/m2 : ca. 2.5 ca.2.9 ca.3.9

    Price is per bucket Learn More