In order to improve the disadvantages of low temperature brittle fracture, high temperature flow, and poor aging resistance of linoleum coiled waterproof roofs and improve the quality of waterproofing projects, in recent years, some new types of waterproofing membranes have emerged. There are four main categories: First, rubber series waterproofing membranes, the main varieties are EPDM rubber coils, polyurethane rubber coils, butyl rubber coils, etc.; Second, plastic series waterproofing membranes, the main varieties are PVC Third, rubber and plastic blended waterproof membrane, the main varieties are chlorinated polyethylene - rubber blended membrane, PVC - rubber blended membrane, etc.; Fourth, high polymer modified asphalt waterproof membrane; Products are SBS, APP, APAO, APO and so on.
(1) Chlorinated polyethylene-rubber blended coil roofing.
In the comprehensive base price, the sub-item of cold sticking construction technology for full shop, empty shop, point shop, and bar shop is set.
Full shop refers to the method of construction in which the web and base are fully bonded when the waterproof roll is applied.
The empty shop refers to a construction method in which when the waterproofing membrane is applied, the web and the base layer are bonded to each other within a certain width, and the rest is not bonded.
Dot Shop: Refers to the construction method of dot-like bonding between the web and the base layer when applying the waterproofing membrane.
Article shop: Refers to the construction method of sticking the web to the base layer when applying a waterproofing membrane.
In the comprehensive base price, the material for leveling layer caulking ointment has been included, which is not calculated separately. If the design does not do leveling layer grid caulking ointment, the base price of plastic ointment, firewood usage and artificial 1.56 days shall be deducted. If the design requires that the leveling layer be sewn into the CSPE caulking ointment, deduct the plastic and firewood consumption in the comprehensive base price, increase the CSPE ointment (330ml) 50.28 (Unit price: 4.38 yuan? Branch), the other unchanged.
In the comprehensive base price, chlorinated polyethylene-rubber blended coils are set to 1.2mm thick. When the design thickness is different, the material is treated as bad.
(2) PVC waterproof membrane roof.
In the comprehensive base price, there are two integrated base price sub-items for the blanking and pasting of aluminum strips.
The construction process of the aluminum bead blank shop is as follows: cleaning the base layer, emptying the plastic sheet, spraying the nail and nailing the aluminum bar, and setting the nail on the nail. The construction process of pasting is: cleaning the base layer, painting the modified asphalt base layer treating agent, and modifying the asphalt binder to paste the polyvinyl chloride waterproofing membrane.
Aluminum alloy strips have been integrated in the 'Aluminum Plink Blank Shop' subheads according to 30 × 3 (mm) specifications, and no separate project calculations are permitted.
(3) waterproof flexible blanket waterproof membrane roof.
In the comprehensive base price, the comprehensive basic price sub-items of 'two-glue, one-sand-a-sand,' hot-paste and full-shop are set, and the sub-items of 'combination of one glue and one felt' are added to help the integrated basic price. The work includes: cleaning the base layer, melting the glue, brushing the viscose, sticking the soft glue, taking the head, brushing the rubber, spreading the white stone protective layer.
Should be based on the design requirements of the number of layers of waterproof soft carpet items listed separately.
The waterproof flexible felt is set to have a thickness of 1.5mm. When the design is different, it is treated as a material difference.
(4) SBS composite waterproof roll roofing.
SBS composite waterproofing membrane refers to polyethylene polypropylene composite waterproofing membrane.
In the comprehensive base price, only the integrated base price sub-item of the cold paste shop is set. Work content includes: leveling layer grid seam ointment, brush polyurethane coating additional layer, with cement mortar paste membrane, do head.
In the comprehensive base price, the leveling layer has been included in the seizure and embedding ointment, and no other item is calculated. If the design does not do the leveling layer subdivision seam inlay paste or CSPE caulking ointment, its conversion with chlorinated polyethylene - rubber blended coil roof.
(5) Polymer modified asphalt waterproof membrane roofing.
Polymer modified bitumen membranes mainly include: SBS, APP, APAO, APO and other waterproof membranes.
Polymer modified bitumen waterproof roof, according to the construction process of hot melt and cold paste two, commonly used single layer thickness of 3mm, 4mm.
1 hot melt paste construction. In the comprehensive base price, the comprehensive base price of 3mm thick and 4mm thick polymer modified bitumen waterproof roll roofs were respectively set. The work includes: cleaning the base layer, brushing the base layer treatment agent, sticking the 2mm thick modified bituminous coil additional layer at the weak point of the waterproofing, and laying the coiled material with hot melt to make the head.
In the comprehensive base price, the materials including the base layer treatment agent and the additional layer of 2mm thick modified bitumen membrane material with weak water resistance are already included, and are not calculated separately. When the design requires an additional layer of 3mm thick modified bituminous membrane, it can be converted and the other unchanged. When the design requires the polyurethane coating to be used as an additional layer in the water-proof weak spot, the polyurethane material 8.32kg and the material 12.48kg are added. The deduction of the 2mm thick coil material used in the comprehensive base price is the same.
2 cold paste construction. In the comprehensive base price, the comprehensive base prices of 3mm and 4mm thick polymer-modified bituminous membrane waterproof roofs are set respectively for the full shop, bar shop, spot shop and empty shop. The work includes: cleaning the base layer, brushing the base layer treatment agent, waterproofing the weak part of the 2mm thick modified bitumen membrane additional layer, the surface layer modified bituminous membrane (hot-melt welding seam), to do the first.
The description of the base layer treatment agent and the additional layer in the weak place, together with the base price of the hot-melt adhesive construction.
When designing a two-story 3mm polymer modified bituminous membrane, the second floor should be calculated separately and the corresponding comprehensive base price should be applied. However, when applying the sub-items on the second floor, the amount of the base treatment agent and 2 mm thick additional layer should be deducted.
(6) EPDM rubber roofing.
In the comprehensive base price, only the integrated base price sub-item of cold sticking construction technology for full shop, empty shop, spot shop, bar shop is set. The work includes: cleaning the base layer, leveling layer subdivision seam inlay ointment, waterproof weak point brush polyurethane coating film additional layer, brush base layer treatment agent, paving the membrane material, coil seam adhesive tape sealing tape, to do the first.
The screed layer caulking has been integrated in the subheadings. The specific conversion requirements are the same as 'Chlorinated polyethylene-rubber blended coil roofing'.