They may also use Exclusive weld pins with integral-cupped head washers. Unfaced boards can then be finished with reinforced insulating cement, canvas, or weatherproof mastic. Confronted boards could be put in in the exact same way, plus the joints concerning boards sealed with tension-sensitive tape or glass fabric and mastic. https://freeecogrants.co.uk/what-are-the-necessities-of-external-wall-insulation-in-your-property/