How to Make the Roof of a Prefabricated Concrete House

There are various methods for constructing the roof of a prefabricated concrete house, including red brick and cement capping, prefabricated concrete block construction, and suspended ceiling solutions for prefabricated concrete houses. Details are as follows:

Red Brick and Cement Capping Method

1. I-beam and Angle Iron Frame Method: Install I-beams along both sides of the house as main crossbeams, embedding them into pre-reserved grooves for fixation. Lay angle irons horizontally to form a grid, ensuring consistent spacing to support red bricks and enhance structural stability. After laying red bricks flat on the angle irons, cover them with a plastic film waterproof layer, fill with yellow mud, and level the surface. Build red brick edges around the roof perimeter, leaving drainage pipes in place. Finally, lay a second layer of red bricks on the yellow mud surface and fill the gaps with thick cement mortar to seal them, improving waterproofing through repeated filling.
2. Inclined Masonry Method: Use the center of the house as a reference point for planning and marking. Lay red bricks layer by layer from the corners towards the center, with each brick tilted upwards at a certain angle to increase load-bearing support points. After laying a portion, apply cement mortar to firmly adhere the red bricks. Continue laying towards the center after curing until the entire roof is completed. This method requires attention to the uniformity of the tilt angle to avoid uneven local stress that could lead to cracking.

Prefabricated Concrete Block Method
Foreign workers use prefabricated concrete blocks to construct the roof base layer. The blocks are designed with precision positioning protrusions on both sides, forming a bidirectional ribbed beam structure through two pre-laid rows of wooden planks, with gaps reserved to accommodate thermal expansion and contraction. This method relies on the precise interlocking of the block protrusions with the ribbed beams to ensure structural stability. During construction, strict control over block spacing and ribbed beam flatness is necessary to prevent structural deformation due to thermal expansion and contraction.

Suspended Ceiling Solution for Prefabricated Concrete Houses

1. Base Layer Treatment: Clean the floating dust from the bottom of the prefabricated slab, use an interface agent to enhance adhesion, fill cracks in the slab joints, and adhere alkali-resistant mesh fabric to prevent cracking.
2. Keel Installation: After marking the positions with a chalk line, install main and secondary keels with spacing of 80 cm and 40 cm, respectively. The distance between hanging rods is 1 meter, and a level is used to calibrate the arching of the main keels.
3. Decorative Panel Installation: Select moisture-resistant gypsum boards for fixation, leaving a 5 mm gap between panels and treating them in layers (joint compound, joint tape, mesh fabric, water-resistant putty).
4. Moisture Barrier Installation: Lay a plastic film for moisture protection, adhering the seams with tape, and lay glass wool insulation below the film. This solution is suitable for scenarios where the original roof leaks or requires improved thermal insulation performance.