Boletin Tecnico

Estos boletines ofrecen información concisa y fácil de entender sobre temas comunes relativos almantenimiento, la reparación, la instalación y el clima que afectan los techos residenciales ycomerciales. Nota: Tanto los documentos como los diagramas asociados son propiedad de ARMA yse proporcionan para el uso personal de los visitantes de este sitio. Se prohíbe su reproducción,distribución o inclusión en otros textos sin el consentimiento expreso y por escrito de ARMA. Losejemplares de todos los boletines técnicos ARMA se pueden descargar directamente haciendo clicen el título del Boletín técnico que necesita.

Las publicaciones adicionales de ARMA, como por ejemplo el Manual de Techado AsfálticoResidencial—que se puede comprar en la librería en línea de ARMA—ofrecen información técnicaadicional. Haga clic aquí para explorar la amplia variedad de publicaciones generales, educativasy especializadas de ARMA sobre techos asfálticos residenciales y comerciales.

Residential Roofing

Click on the bulletin title for more information and a download link.

Asphalt Shingle Reroofing: Replacement vs. Recover

When the time comes to reroof an existing asphalt shingle roof, a decision must be made whether to remove the old shingles or apply new shingles directly over the existing layer. Most building...

Attic Ventilation Best Practices for Steep Slope Asphalt Shingle Roof Systems

Ventilation is:

Attic ventilation is the flow of outside air through the space at the underside of the deck of an asphalt shingle roof system.

The benefits...

Recommendations for Storage and Application of Asphalt Roofing Shingles in Hot Weather

Introduction

Asphalt shingles have been used successfully in various climate zones around the world, including desert and tropical regions, for over one hundred years....

Recommendations for Installation of Asphalt Roofing Shingles in Cold Weather

Asphalt shingles have been used successfully in cold climates for over one hundred years. Improved application efficiency, and more importantly, enhanced long-term shingle performance, can be...

Recomendaciones para la Instalacion de Tehas de Techado Asfaltico en Climas Frios

Las tejas de asfalto se han utilizado con éxito en climas fríos por más de 100 años. Puede obtener una mejor eficiencia de la aplicación, y principalmente, un mayor rendimiento de las tejas a...

Use of Asphalt Shingle Underlayment

There are three basic types of underlayment used under asphalt shingles: asphalt-saturated felt, self-adhering underlayment, and non-asphaltic synthetics (polymers).  The most common type of...

Self-Adhering Underlayment Removal Prior to Steep Slope Re-Roofing

Self-adhering underlayment is generally applied to the roof deck on the eaves, rakes, and valley areas of steep slope roofs and as flashing around roof penetrations. Self-adhering underlayments...

Photovoltaic Systems and Asphalt Shingle Roofs

Introduction

Photovoltaic (PV) systems convert sunlight into electricity. These systems have been successfully installed on residential asphalt shingle roofs for many...

Sistemas Fotovoltaicos y Techos de Tejas de Asfalto

Introducción

Los sistemas fotovoltaicos (FV) convierten la luz del sol en electricidad. Estos sistemas se han instalado con éxito en techos residenciales de tejas de...

Asphalt Shingle Recycling FAQs
Tejas de Asfalto Preguntas Frecuentes de Reciclaje

 

¿Qué es el reciclaje de tejas de asfalto?
Cada vez es más común reciclar tejas en lugar de tirarlas a la basura. El reciclaje de tejas...

Asphalt Shingle Recycling Do’s and Don’ts

Asphalt shingle recycling is becoming very common as an alternative to sending materials to a landfill. Shingle recycling is the process of taking asphalt shingles from roof tear-offs and...

Nail Application of Asphalt Strip Shingles for New and Recover Roofing

Criteria for proper placement and application of roofing nails.

 

The Asphalt Roofing Manufacturers Association (...

Algae Discoloration of Roofs

For many years, roof discoloration caused by algae...

Decoloracion de Techos por Algas

Por muchos años, en los Estados Unidos y en Canadá se ha observado la decoloración de techos por las algas. La decoloración generalmente tiene una apariencia entre marrón y negra, y puede...

Preventing Damage from Ice Dams

Installation procedures for eaves flashing over low and steep sloped roofs. Includes illustrations.

 

Snow and ice formations on roofing structures can create ice dams at the...

Prevencion de Danos por Acumulaciones de Hielo

Las formaciones de nieve y hielo en las estructuras de techado pueden generar acumulaciones de hielo en los aleros. Las acumulaciones de hielo generalmente se forman por el congelamiento y...

Recommendations for Application of Asphalt Shingles on Slopes Greater Than 21:12

The maximum slope considered by ARMA to be suitable for normal asphalt shingle application is 21:12, or 21” per foot.  The use of asphalt shingles on slopes greater than 21:12 (e.g.,...

Plain Facts About Buckled Shingles

Reviews the causes, prevention and correction of buckled shingles.

Description

Buckling is the result of asphalt shingles not laying flat due to the wrinkling of the...

Color Shading of Asphalt Shingle Roofs

Outline of the primary and secondary causes of color shading. Suggests ways to avoid this purely aesthetic problem.

 

Definition

As a roof is viewed from...

When Does a Shingle Comply with ASTM D3462?

Shingles that are in conformance with ASTM D3462 at the time of manufacture have a proven track record of performance, meeting and exceeding customer expectations.

 

Asphalt...

Water Soluble Residue Found on Asphalt Roofing Products (“Tobacco-Juicing”)

The formation of a “tobacco-juice” residue, so named for its color, has been widely attributed to the weathering of asphalt roofing (i.e., roof coatings, base and cap sheets and...

Coating of Asphalt Shingles After Installation

ARMA strongly advises against the application of any type of field-applied coating over installed asphalt shingles. There are many types and formulations of roof coatings so it is important to...

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Modified Bitumen Roofing

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VOC Considerations for Asphalt Roofing

Asphalt Roofs Can Meet VOC Requirements

While volatile organic compound (VOC) regulations have tightened over the years, asphalt roofing products have kept pace. Asphalt...

ARMA Lightweight Structural Concrete Roof Decks Statement

Decks may not be suitable for durable, sustainable roofing systems

The roofing industry is increasingly experiencing roof system performance issues when roof systems are...

Effects of Roof Color and Solar Reflectance on the Accumulation of Moisture in Roof Systems

Introduction:

Moisture content within a roofing assembly may fluctuate significantly over the life of the roof depending on a variety of factors including, but not limited...

The Effects of Greases, Oils and Chemicals on Modified Bitumen Sheet Materials

Breaks special contaminants into three categories: oils/greases, bacteria/fungi and other chemicals. Adverse effects are highlighted for each category. Includes methods for preventing roof...

Cold Weather Application Recommendations for Modified Bitumen Roofing

Overview of proper storage, handling and application methods in cold temperatures. Contains information for both torch-applied and hot asphalt-applied products.

Introduction...

Water Soluble Residue from Asphalt Roofing Products ("Tobacco Juicing")

Describes origin of tobacco juicing and the effects this residue may have on modified bitumen roofs. Provides ways to minimize/eliminate residue runoff.

The formation of a “tobacco-...

Self-Adhesive Modified Bituminous Roofing Membranes

Modified bituminous roof membranes continue to be popular option for low-sloped roofs due to their proven performance. Historically these products have been torch-applied, mop-applied using hot...

Membranas de Betun Modificado Autoadhesivas para Techado

Las membranas autoadhesivas combinan el rendimiento comprobado de compuestos impermeables de betún modificado con una capa de betún autoadhesiva para una fácil aplicación. Las membranas de betún...

Photovoltaic Systems and Low-slope Commercial Roofs

Introduction

The push toward sustainable building practices has led design professionals to look at roofs as more than just the waterproofing element. They view the roof as...

Sistemas Fotovoltaicos y Techos Comerciales con Baja Inclinación

Introducción

El esfuerzo por implementar prácticas de construcción sostenibles ha llevado a los profesionales del diseño a considerar los techos como algo más que un...

The Effects of Ponding Water

Ponding water can have major negative consequences, regardless of the type of roofing system. Proper design, installation and maintenance of roofing structures can prevent this condition and its...

Los Efectos del Agua Estancada

El agua estancada puede tener consecuencias negativas importantes, independientemente del tipo de sistema de techado. El diseño, la instalación y el mantenimiento correcto de las estructuras de...

Decking Recommendations for Built-Up Roofing and Modified Bitumen Membranes

Introduction

The Asphalt Roofing Manufacturers Association (ARMA) recommends that the structural roof deck meet certain minimum requirements to be an acceptable substrate...

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Built Up Roofing

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Recommendations Regarding Built-Up Roofing Asphalt

Built-Up Roofing (BUR) membranes have been in use in North America for more than 100 years. BUR systems predominately consist of alternating layers of asphalt (bitumen) and fiberglass ply felts...

Cold Weather Recommendations for Built-Up Roofing

Introduction

Application of any type of bituminous roofing system in cold weather can be achieved successfully if precautions are taken. When roof systems are installed in...

VOC Considerations for Asphalt Roofing

Asphalt Roofs Can Meet VOC Requirements

While volatile organic compound (VOC) regulations have tightened over the years, asphalt roofing products have kept pace. Asphalt...

ARMA Lightweight Structural Concrete Roof Decks Statement

Decks may not be suitable for durable, sustainable roofing systems

The roofing industry is increasingly experiencing roof system performance issues when roof systems are...

Photovoltaic Systems and Low-slope Commercial Roofs

Introduction

The push toward sustainable building practices has led design professionals to look at roofs as more than just the waterproofing element. They view the roof as...

Sistemas Fotovoltaicos y Techos Comerciales con Baja Inclinación

Introducción

El esfuerzo por implementar prácticas de construcción sostenibles ha llevado a los profesionales del diseño a considerar los techos como algo más que un...

The Effects of Ponding Water

Ponding water can have major negative consequences, regardless of the type of roofing system. Proper design, installation and maintenance of roofing structures can prevent this condition and its...

Los Efectos del Agua Estancada

El agua estancada puede tener consecuencias negativas importantes, independientemente del tipo de sistema de techado. El diseño, la instalación y el mantenimiento correcto de las estructuras de...

Decking Recommendations for Built-Up Roofing and Modified Bitumen Membranes

Introduction

The Asphalt Roofing Manufacturers Association (ARMA) recommends that the structural roof deck meet certain minimum requirements to be an acceptable substrate...

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