Plastic window around the gap with cement plug or foam plug?
The gap is too large to use cement to block, more solid;
Plastic window around the gap should be the first use of blowing agent, foam agent dry after the removal of excess parts, and then cement mortar paint, and finally do waterproofing.
For the gap between the box and the wall of the filler and surface treatment requirements in the "Building Decoration Construction Quality Acceptance Specification (GB-2001)" Article 5.4.7 states: "Plastic door frame and the gap between the wall should be used Closed hole elastic material filled full, the surface should be sealed with sealant sealant should be bonded firmly, the surface should be smooth and smooth, no cracks. 2. According to "plastic doors and windows installation and acceptance procedures (JGJ103-96)" Article 4.2.11.2 provides: insulation, sound insulation window, the hole between the inside and the window frame should be used to fill the cement mortar smooth; when the plaster , The sheet should be used to temporarily remove the plaster layer and the window frame, the thickness should be 5mm, plaster surface should be beyond the window frame, the thickness of the fan does not affect the opening is limited (see " Node graph). To be outside the plaster layer hardened, should remove the sheet, and the caulking paste into the plaster layer and window frame gap. Insulation, sound insulation requirements of the higher project, between the inside of the hole and the window frame should also be used to seal the seal. 3. Also in the "plastic doors and windows installation and acceptance procedures (JGJ103-96)" Article 4.2.10 of the provisions of the filler more detailed: window frame and the hole between the expansion joints should be used in closed cavity foam, Foam polystyrene and other elastic materials layered packing, packing should not be too tight. For insulation, insulation requirements of the higher level of the project should be the use of the corresponding insulation, sound insulation material stuffing.
