WEBVTT 00:00:00.520 --> 00:00:03.000 This is Mr. and Mrs. Happy. 00:00:03.500 --> 00:00:10.000 They are delighted that in such a short construction time the exterior walls of their dream house, made of aerated concrete, are already standing. 00:00:10.000 --> 00:00:14.500 Today, the roof made of aerated concrete is being added. 00:00:14.500 --> 00:00:22.000 This is their advisor from Massiv Haus Sachsen, Mr. Friendly. He explains the procedure. 00:00:22.000 --> 00:00:32.000 Instead of the usual wooden beams with soft insulation, a plastic sheet and plasterboard cladding, their new roof consists of solid aerated concrete slabs. 00:00:33.000 --> 00:00:40.000 These are placed on the load-bearing inner and outer walls and only need plastering on the inside. 00:00:40.000 --> 00:00:48.000 On the outside, after applying additional insulation (depending on the energy calculation), the roof tiles are laid. Finished. 00:00:48.000 --> 00:00:51.000 The advantages of the solid roof are: 00:00:51.000 --> 00:00:54.000 Best heat protection in the attic during summer. 00:00:54.000 --> 00:00:57.000 Optimal cold protection in winter. 00:00:57.000 --> 00:00:59.000 Convincing sound insulation. 00:00:59.000 --> 00:01:01.000 Reliable fire protection. 00:01:01.000 --> 00:01:05.000 Excellent base for a photovoltaic system. 00:01:05.000 --> 00:01:08.000 Also possible as an energy-plus house. 00:01:08.000 --> 00:01:14.000 Outstanding healthy living conditions and no need for vulnerable foil seals. 00:01:15.000 --> 00:01:21.000 Simple and fast construction, high stability and lasting value. 00:01:21.000 --> 00:01:26.000 The Happy family looks forward to moving into their new dream house. 00:01:26.000 --> 00:01:32.200 Thumbs up for the solid roof – built by Massiv Haus Sachsen from Leipzig.