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Protected house: 5 essential cares during periods of rain

Protect your home during the rains: essential tips to avoid leaks, mold, and damage, ensuring safety and savings

By CASACOR Publisher

Submitted at Dec 20, 2025, 9:00 AM

08 min de leitura
bela-vista-das-gotas-de-chuva-rolando-pela-janela-e-os-arranha-ceus-na-superficie

bela-vista-das-gotas-de-chuva-rolando-pela-janela-e-os-arranha-ceus-na-superficie (Freepik/Divulgação)

The rainy periods require extra attention to the house. In addition to the discomfort caused by excessive humidity, constant precipitation can compromise the structure, finishes, and even the safety of the residents. Infiltrations, leaks, short circuits, and mold are among the most common problems when there is no adequate preventive maintenance.
lightning; rain; house

(Freepik/Disclosure)

From the perspective of architecture and property conservation, anticipating care is always more efficient and economical than dealing with emergency repairs. Below, we have gathered five essential precautions to keep the house protected during rainy periods, preserving the durability of the materials and ensuring comfort and safety.

1. Check roofs, gutters, and flashings


roof; rain

(Ian Talmacs/Unsplash/Disclosure)

The roof is the first line of defense of the house against the rain. Broken tiles, displaced or misaligned sections allow rainwater to enter, which may reach ceilings, slabs, and walls. Therefore, before and during periods of heavy rain, it is essential to conduct a visual inspection and, if necessary, consult a professional to assess the roofing.
gutter; leaves; clogged gutter

(Jon Sailer/Unsplash/Disclosure)

Gutters and flashings also deserve special attention. Leaves, twigs, and accumulated dirt prevent proper drainage of water, causing overflow and infiltration on the facades. Periodic cleaning ensures that rainwater is conducted properly away from the structure, avoiding damage over time.

2. Look for signs of infiltration and humidity


infiltration; damaged-texture-of-white-wall

(Freepik/Disclosure)

Dark stains on walls, peeling paint, bubbles on plaster, and a musty odor are clear signs of infiltration. During rainy periods, these signs tend to intensify, especially on external walls, slabs, and areas near windows and doors. Ignoring these signs can worsen the problem and compromise the property's structure.
infiltration; moss; mold; damaged-texture-of-white-wall

(Freepik/Disclosure)

Preventive architecture recommends identifying the source of the infiltration as soon as possible, whether due to waterproofing failures, cracks, or roofing problems. Solutions such as specific waterproofing, crack repairs, and sealing reviews are essential to contain moisture and preserve the health of the projects inside.

3. Take care of drainage and external areas


drain; floor

(Freepik/Disclosure)

Backyards, gardens, garages, and external areas need a good drainage system to avoid water accumulation. In rainy periods, floors without proper slope or clogged drains can create persistent puddles, favoring infiltrations into the soil and foundation of the house.
drainage-floor; stones; pebbles

(Freepik/Disclosure)

From an architectural perspective, proper drainage of water contributes to the durability of the construction. Check that drains are unobstructed, that there is sufficient slope in the external floors, and that the terrain directs water away from the building. In some cases, the installation of gutters or drains may be necessary to avoid future problems.

4. Pay attention to electrical installations


electric energy; lamp post; wires

(Frames For Your Heart/Unsplash/Disclosure)

The combination of water and electricity represents a serious safety risk. During rainy periods, infiltrations near outlets, electrical panels, and wiring can cause short circuits, electric shocks, and even fires. Therefore, it is essential to ensure that electrical installations are well protected against moisture.
overloaded outlet

(Kraus Muller/Disclosure)

Reviewing seals on external boxes, protecting electrical panels, and avoiding using equipment in wet areas are basic but fundamental measures. In single-story homes or those located in flood-prone areas, elevating outlets and electrical points may be an effective architectural solution to reduce risks.

5. Preserve doors, windows, and frames


window; infiltration; oxidation

(Freepik/Disclosure)

Poorly sealed doors and windows are critical entry points for water during heavy rains. The lack of sealing gaskets, flaws in the frame, or wear and tear on materials allow infiltrations that damage floors, walls, and nearby furniture.
seal; silicone; windows

(Freepik/Disclosure)

The preventive maintenance of frames includes replacing dried seals, adjusting fittings, and applying appropriate sealants. In addition to protecting against rain, these precautions enhance thermal and acoustic comfort in the house, reinforcing the efficiency of the architectural project as a whole. CASACOR Publisher is a creator of exclusive content, developed by the CASACOR Technology team based on the knowledge base of casacor.com.br. This text was edited by Yeska Coelho.