The invention discloses a roof truss protecting and repairing method without falling, and relates to the technical field of constructional
engineering, and the method specifically comprises the following steps: S0, surveying, detecting, evaluating, identifying, forming a report, and guiding the design work; the method comprises the steps that S1, a
ridge, tiles, waterproof components, roof battens, counter battens and
asphalt felts of a building are sequentially dismantled till a roof base layer of the building is dismantled; s2, a wooden roof frame of a roof base layer is repaired; s3, after repairing is completed, a
keel frame is installed on the wooden roof frame; s4, a bearing net is installed, stringers are arranged and fixed, and rock
wool is filled; s5, a wooden roof boarding is laid on the
stringer, and anti-
corrosion paint is brushed on the wooden roof boarding; s6, waterproof coiled materials are laid and pasted on the wood balusters; s7, wood counter battens are installed, and then wood roof battens are installed; s8, roof tiles and a
ridge are laid; s9, a
lightning rod and a
lightning strip are installed, then a downpipe is arranged, and a decoration panel is installed; and S10, after repairing is completed, detection is carried out, and finally subsection acceptance check is carried out. The technical problems that stability, waterproof performance and heat preservation and heat insulation performance are not enough in the updating and reconstruction process of an existing
brick-wood structure house are solved.