They may use Specific weld pins with integral-cupped head washers. Unfaced boards can then be finished with bolstered insulating cement, canvas, or weatherproof mastic. Faced boards may be set up in precisely the same way, along with the joints in between boards sealed with strain-delicate tape or glass material and https://freeecogrants.co.uk/how-to-insulate-your-home-by-applying-for-the-grants-in-uk/