They could also use Particular weld pins with integral-cupped head washers. Unfaced boards can then be completed with strengthened insulating cement, canvas, or weatherproof mastic. Confronted boards could be set up in exactly the same way, plus the joints among boards sealed with pressure-sensitive tape or glass cloth and mastic. https://freeecogrants.co.uk/what-are-the-advantages-of-insulating-your-house/