stucco plaster system of external walls

stucco plaster is similar to gypsum plaster, which is quite thin, hard and brittle, causing house building company บริษัทรับสร้างบ้าน to use steel wire mesh. or a sub-layer that is a gnarled surface To help hold the adhesion to prevent the plaster from slipping. While gypsum plaster may expand slightly when solidified. But Stucco plaster will shrink due to temperature and humidity changes. This will cause the plaster surface to crack. Therefore, joints should be made in case of cracks to prevent and reduce cracking to a minimum.

joints for cracks in the corners

  • The crack joint at the corner serves to determine where the crack will occur. Can expand and contract separately or used in the case of plasterboard plaster board colliding with any structural parts such as beams, columns or load-bearing walls.

seam to break

  • The breakage joint serves to separate the plastering panels in the same plane. in order to be able to expand and contract to some extent without causing cracking of the plaster Due to temperature variations in case of stucco plastering on the wire mesh, the fracture joints should be spaced no more than 18′ (5.5 m) apart with a single plaster panel area of ​​not more than 150 ft² (14 m²).
  • In case the wall material has cracks in case This may be in the building material or at the connection point with other structural parts. Plastering stucco, put the joints in case of cracks in line with the joints of the walls as well.
  • Add cracking joints for stucco plaster at the joint between the floor and the wall frame of different materials.


  • Metal joints for breakage are attached to the wire mesh under the plaster.
  • at the joint for breakage Cut off continuity of putty and wire mesh.
  • Should take into account the prevention of water leakage of the material used as a horizontal crack in conjunction with the prevention of cracking.
  • Metal breakage joints are attached to the wire mesh under the plaster at the cracked joints. Cut off continuity of putty and wire mesh.
  • Plaster layer stucco.
  • Structural work
  • stop edge


  • Sealing material.
  • Concrete walls or bases.

Insulation and plaster system of external walls

Forms and materials of insulation Ready to decorate the exterior of the building or to build a house รับสร้างบ้าน  Newly built or old buildings that need external wall remodeling are generally available in the market. This usually consists of synthetic stucco plaster on a rigid foam insulation board.

However, such patterns often have weaknesses in water leaks around doors and windows. due to lack of elaboration in installation And such a model does not have a system to support water leaking into the interior. and cannot be vented, thus causing the insulation to separate from the underlayment and glide. However, we can fix the problem Such by putting a layer of drainage (drainage mat) before reaching the foundation wall. To drain water through plastic seals above door openings, windows and at the bottom of the walls.

There are 2 types of forms and materials for insulation and exterior surface decoration: modified polymers and modified polymers. and polymer The converted polymer consists of ¼” to 3⁄8″ (6.4 to 5.9 mm) thick Portland sheet reinforced wire mesh. or fiber mesh, which is attached to the insulating layer In the case of heavy-duty walls, fiber mesh will be used instead. or add it to the standard sieve and using acrylic polymers to decorate the surface of Portland cement.

Polymer insulating material Comprised of 1⁄16″ to ¼” (1.6 to 6.4mm) Portland cement or acrylic polymer coated tensile fiberglass grating. Polymers are more flexible and less cracking than modified polymers. But there is a weakness to impact.

  • Additional information is available from the Exterior Insulation Manufacturers Association (EIMA) standards.
  • Rigid insulated panels are 1″ to 4″ (25 to 100) thick and 2′, 4′ or 8′ (610, 1,220, or 2,440) long. waterproof cover Or in case the wall is a building material, can use glue or fixing device to the wall. For walls with brittle or cracked texture A support rail truss system can be used to obtain a plane.
  • Prime the surface with fiberglass grating. to prevent cracking of plaster
  • Synthetic stucco plaster to be mixed with acrylic polymer, silica sand, court rubber crumbs. or marble rubber sheet to obtain the desired plaster surface Coloring the walls may be applied by applying or mixing powder paint into the mixture and plastering as needed.
  • Leave a ¾” (19) expansion joint at the floor-to-wall connection. which is the turning point of the structural parts or where the wall structure has joints
  • The use of polymers which are prone to shrinkage and cracking. Synthetic stucco plaster panels should be divided into smaller panels. with broken seams
  • Rubber rods and sealing materials.
  • Foam insulation panels can be used above the ground. and continued into the ground as a memory for the basement.
  • Able to connect plaster and fiberglass grating surfaces at least 4″ (100)
  • V-groove for beauty and drip irrigation can be done using a router tool.


The main purpose of the insulation installation is In order to control the transfer of heat through the surrounding building and the outside of the building, therefore, the insulation will help to keep warm inside the building in winter. and keeps the indoor cool in summer It also reduces the amount of energy needed to use air conditioning and heating in the building.

  • Make a channel to allow air circulation. to displace steam build-up under the roof
  • Heat-insulating glass and weather-proof trim on the door frame. Helps prevent heat transfer or the cold from outside
  • The temperature difference between the topsoil and the basement is still less than that between the inside and outside of the above-ground building.
  • Because the roof area has a difference between the temperature inside and outside

The cost of the building is very high, therefore, it is necessary to put more insulation on the roof than on the walls or floors of the building.

  • Insulation must be continuous from foundations, walls, floors to roofs so that there are no weak points or leaks to maintain a constant temperature inside the building.
  • There should be ventilation in the basement area.
  • Insulation should be installed in every building that is separated from heated or cold areas and areas that are not.

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