Replanteo y construcción escalera bóveda a la catalana vídeo nº 1

How to Calculate Comfortable Stair Steps

Introduction to Stair Calculation

• The video discusses the calculation of stair steps, focusing on comfort and safety. The formula for comfortable steps is presented as two risers (contrahuellas) plus one tread (huella) equaling 63 cm. Averages are used between a minimum of 60 cm and a maximum of 65 cm for optimal comfort.

Step Height Calculation

• To determine the number of steps needed for a height of 1.05 meters (105 cm), the maximum riser height is set at 18 cm. Dividing 105 by 18 yields approximately 5.83 steps, which is impractical; thus, six steps are chosen instead, resulting in a riser height of 17.5 cm per step.

Tread Width Determination

• Using the earlier formula (two risers plus one tread equals 63), the total height from six risers (35 cm) is subtracted from 63 cm to find that each tread should be approximately 28 cm wide for comfort when using six steps with a riser height of 17.5 cm.

Marking and Cement Application

• After calculating dimensions, marking the stairs accurately with a level and pencil is crucial for proper cement application. The method ensures that lines guide where cement will be poured, allowing for precise construction without errors during installation. This technique helps maintain visibility throughout the project duration as markings remain clear even after applying cement over them.

Finalizing Stair Construction

• Once marked, it’s essential to moisten walls before applying cement to enhance adhesion and prevent rapid drying that could compromise quality. The process includes cutting excess cement after it has set to ensure neatness and accuracy in stair shape while preparing for further construction phases like adding tiles or other materials on top of the base layer created by cementing the stairs properly.

Construction of Staircase Steps

Importance of Precision in Stair Construction

• The process of laying tiles for staircase steps has begun, emphasizing the need for precision in shaping the steps.

• Checking the squareness of the step is highlighted as a crucial aspect to ensure it aligns properly with the wall.

• A visual representation (plan and elevation) of the staircase is presented, aiding in understanding its construction.

• The video is created by Ramón Guarda y Parera, a traditional official first technician in construction, showcasing expert techniques.

• This content is part of a series produced in 2021, indicating ongoing education and skill development within traditional building practices.