Installation process of external wall insulation and decoration integrated panel(applicable version in Linyi,Shandong)
The installation of integrated panels for exterior wall insulation and decoration is a systematic project that must strictly comply with national standards and regional climate adaptability requirements.Based on JGJ/T 350-2015 and construction experience in cold northern regions,the installation process is divided into the following eight key stages:
1.Construction preparation
Personnel and equipment:Organize a certified construction team,equipped with electric mixers,spatulas,level rulers,ink line boxes,electric drills,vacuum suction cups,safety baskets,etc.
Material acceptance:Verify the specifications,fire rating(Class A),and surface quality of the integrated board.Adhesive,anchor,and sealant must have factory certificates and inspection reports.
Environmental requirements:During winter construction in Linyi,Shandong,the ambient temperature must not be lower than 5℃;If the temperature is below 0℃,anti freezing bonding mortar must be used or temporary insulation sheds must be built.It is strictly prohibited to work in rainy,snowy,or windy weather.
2.Treatment of grassroots walls
Remove floating dust,oil stains,and release agents from the wall,repair hollows and cracks,and ensure a solid and smooth base layer.
Flatness control:Use a 2m ruler for testing,with a deviation of≤4mm;the straightness error of the internal and external corners is≤5mm.
Interface treatment:The concrete wall is fully coated with concrete interface agent to enhance the bonding strength;Masonry walls should be moistened with water in advance,but there should be no visible water.
3.Line positioning and layout design
According to the building elevation drawing,pop up the horizontal control line from the ground reference line on the first floor,and pop up the vertical reference line on both sides of the internal and external corners and window openings.
Measure the wall dimensions,draw personalized layout diagrams,avoid narrow strips less than 1/3 of the board width,and prioritize whole board installation.
Mark the location of anchor components(usually no less than 4 per square meter)and indicate the width of the board joint(usually 5-8mm).
4.Preparation and application of bonding mortar
Mixing method:Mix the dry powder binder with water according to the product instructions,stir electrically for 5-8 minutes,let it stand for 5 minutes,and then stir for 1 minute to ensure no particles and uniform consistency.
Construction method:Use point frame method(recommended)or strip adhesive method:
Point frame method:Apply 80mm wide bonding mortar around the perimeter of the board,leave 50mm exhaust holes at the top,and evenly lay 8 bonding points with a diameter of≥100mm on the board surface.
Adhesive area:≥40%(Type I board)or≥50%(Type II board),ensuring that the adhesive strength meets the standard.
Homework efficiency:Use up within 2 hours after preparation to avoid skin failure.
5.Board pasting and preliminary fixation
Installation sequence:from bottom to top,from the outer corner to the inner corner,from the window opening to the larger surface,to avoid cross contamination.
Operation points:
One person holds the board,while the other lightly taps the board surface with a rubber hammer to ensure a tight fit between the board and the wall.
Use cross clamps or pads to control the uniformity of the board seams.For every 3-5 boards pasted,use a level ruler to calibrate the verticality and flatness.
Temporary fixation:Do not disturb within 24 hours after pasting to prevent displacement.
6.Anchor installation
After the initial setting of the bonding mortar(usually 24 hours),drill holes according to the layout plan with a depth of≥50mm and a diameter matching the anchor bolt specifications.
Anchor point arrangement:Each board should have no less than 4 anchors,and the edges and corners should be densified.For high-rise buildings,the anchor density should be increased according to the design.
Installation requirements:The anchor bolt plate should be tightly attached to the plate surface,and the screws should be tightened until the plastic expansion sleeve is fully opened.The single point anchoring force should be≥0.60 kN(Type II plate).
Prohibited behavior:It is strictly prohibited to stick without anchoring or to have insufficient anchoring points.
7.Seam treatment and sealing
Caulking:the closed cell foam strip is embedded in the slab joint,with a depth of 50%–70%of the joint width to ensure elastic support.
Glue application:
Clean both sides of the board seam and apply decorative paper to protect the finish.
Use weather resistant silicone sealant with a width≥seam width and a thickness controlled between 0.5-1.0mm.
Use a flat scraper to scrape flat in one direction,ensuring that the colloid is full,continuous,and free of bubbles.
Finished product protection:Avoid watering within 24 hours after gluing.When tearing off the decorative paper,it should be slowly flattened to prevent tearing of the finish.
8.Acceptance and Finished Product Protection
Main control items:Bonding strength,anchoring force,joint sealing,flatness,and verticality must comply with the requirements of JGJ/T 350-2015.
Allowable deviation:
Verticality:≤10mm(H≤30m);≤15mm（30m<H≤60m）
Levelness:≤3mm/floor height
Finished product protection:Avoid heavy object impact within 7 days after construction,and it is strictly prohibited to open or drill holes on the board surface.
Shandong Huaneng Insulation Materials Co.,Ltd.specializes in the production and sales of integrated insulation and decoration,pipeline insulation,exterior wall insulation materials,extruded polystyrene boards,thermosetting polystyrene boards,and rubber insulation.It is an enterprise that integrates production,sales,and construction.
Tel: 400-013-5133
Tel: 0539-8520111 15753903111
E-mail: huanengbw@126.com
Address: Linyi National High tech Zone New Materials Park
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