Construction method of roof anti-leak protection layer

Abstract

The invention provides a method for constructing a roof intrusion-proof protective layer. The construction method comprises the following steps that: (1) a cement cover board to be constructed and the following wall slot with a depth of ranging from 13 to 26 centimeters and a board slot are infilled with cement mortar; (2) the cement cover board is used to construct the roof protective layer with a planeness of high middle and low side and with a gradient of ranging from 3 to 6 degrees; (3) within 5 to 48 hours after the protective layer is made, a plurality of main dilatation joint lines are marked out on the upper surfaces of the cement cover board and the protective layer corresponding to a wall body, each main dilatation joint line is averaged to mark out auxiliary dilatation joint lines and then a cutting machine is used to cut V-shaped grooves with a depth of 4 to 6 centimeters along the main dilatation joint lines and the auxiliary dilatation joint lines, the width of an upper opening of the V-shaped groove is 1 centimeter; (4) the bottom of each V-shaped groove is filled with fine sand, a layer of waterproof fluid sealant with a thickness not less than one centimeter is stuck on the fine sand, and an upper edge of the V-shaped groove had better be provided with a slightly hollow part. The construction method of the invention is easy and simple to operate, good in effect, long in age limit and easy to popularize.

Description

Technical field: [0001] The invention relates to a roof covering layer, in particular to a construction method of a roof anti-leakage protective layer with simple process, low cost and good waterproof effect. Background technique: [0002] There are many construction methods for the current roof anti-leakage protective layer, such as the three-oil two-felt method and the concrete grid method. Take out wooden strips or metal strips in the expansion joints between the squares, fill them with fine sand first, and then fill them with sealant. Although these two methods have a certain anti-leakage effect, the common disadvantage is that the construction method is complicated. , High cost. Invention content: [0003] The purpose of the invention is to design a construction method of the roof protective layer with simple process, low cost and good anti-leakage effect. [0004] The technical solution of the present invention is accomplished in the following manner, and it is cha...

AI Technical Summary

Problems solved by technology

[0002] There are many construction methods for the current roof anti-leakage protective layer, such as the three-oil two-felt method and the concrete grid method. Take out wooden strips or metal strips in the expansion joints between the squares, fill them with fine sand first, and then fill them with sealant. Although these two methods have a certain anti-leakage effect, the common disadvantage is that the construction method is complicated. , high cost