APPLICATION & COMPOSITION
PermaRend is a high impact-resistant, polymer-modified, cement-based render containing performance improvers. PermaRend is designed to withstand water penetration whilst allowing water vapour diffusion, and is suitable for geographical areas including those classified as having very severe exposure to wind driven rain (BS 5628: Part 3 and BS 8104).
Supplied prepacked as a dry powder premix, PermaRend requires only the addition of clean water on site. The mixed render is applied by machine or trowel in two coats of 3-5 mm per coat.
PermaRend is suitable for all masonry and mineral substrates. However, surfaces should be of a good standard, ideally of fair-faced quality, and true to line, level and plumbness to avoid the need for preliminary levelling or dubbing out, at extra cost.
For application to existing masonry surfaces, the PermaRend system is enhanced by the incorporation of reinforcing mesh giving improved resistance to structural movement and providing a higher level of tensile strength. Where very high levels of impact resistance are required, our heavy gauge Armour Mesh can also be incorporated.
On existing rendered surfaces or old surfaces that are weak or friable, mechanical dowel fixings are utilised through the reinforcing mesh to enhance the integrity of the system and to give a failsafe bond to the underlying substrate.
Mechanical fixings are available for all substrate types, including brick and blockwork, dense and no-fines concrete, as well as for mineral board carriers used with timber and metal frame constructions.
PermaRend renders can accept any of the extensive range of decorative finishes and effects available from PermaRock, including brick and stone finishes, acrylic and silicone textured renders, Decoline tiles and Stone Chip Coatings.
All PermaRend systems come complete with a fully comprehensive set of corner and edge protection profiles and trims, in stainless steel, polyester powder coated aluminium or pvc, as well as with sealing strips, mastics and tapes to enable robust and weathertight detailing to be achieved at windows, doors and abutments.