Construction method for insulating layer of roof

Abstract

The invention relates to a building construction method, in particular to a construction method for an insulating layer of a roof. According to the construction method, the insulating layer is constructed with cement expanded perlite and can be prevented from cracking. The construction method is characterized by including: paving the cement expanded perlite insulating layer on the roof, mounting an exhaust pipe in the cement expanded perlite insulating layer, paving a waterproof layer on the cement expanded perlite insulating layer, and paving a fine aggregate concrete protective layer on the waterproof layer. By the aid of the construction method, water vapor in the insulating layer can be well exhausted from the exhaust pipe, the roof can be prevented from convex and crack, and good heat insulating and water proofing effects can be achieved.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method for a heat-insulation layer roof that prevents cracks from occurring on the heat-insulation layer roof, which is suitable for use of cement expanded perlite as an insulation layer. Background technique Prior art In common building construction, especially in the south, cement expanded perlite is widely used as the insulation layer for roof insulation. Leveling the reinforced concrete roof with cement mortar, brushing cold base oil with one coat of hot asphalt and two coats of asphalt mastic, paving cement expanded perlite, paving the ground, calendering the surface of the concrete rigid waterproof layer, reinforcing steel bars in two directions, leaving spaced gaps, Cement mortar leveling. Although similar methods can play a certain role in heat preservation, they cannot control the bulging and cracking of the roof, and are often counterproductive, and ca...

AI Technical Summary

Problems solved by technology

Because the roof of the insulation layer made of loose materials once infiltrates rainwater, the water vapor is not easy to discharge after the leveling layer is completed, which will have an adverse effect on the leveling layer and the waterproof layer. In addition, the roof shrinks too much due to temperature changes, causing the insulation layer to bulge, which will seriously damage the roof. Cracks, causing damage to the entire roof

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