Can you install snow guards on an old roof?

In this article, we will explore the feasibility and considerations of installing snow guards on an old roof.

Understanding Snow Guards

Snow guards are devices or attachments installed on a roof to prevent snow and ice accumulation from sliding off. They typically consist of metal brackets or bars that are strategically placed along the eaves, valleys, and other vulnerable areas of the roof. Snow guards create friction, causing the snowpack to break up into smaller, manageable pieces or allowing it to melt gradually, reducing the risk of sudden roof avalanches.

Factors to Consider

Before installing snow guards on an old roof, there are several important factors to consider:

1. Roof Condition: The condition of the old roof is crucial in determining whether it can support the installation of snow guards. An inspection by a professional roofer is highly recommended to assess the structural integrity of the roof and ensure it can handle the additional weight and stress that snow guards may introduce.
2. Roof Material: Different roof materials require different types of snow guards. For example, asphalt shingles may require adhesive-mounted snow guards, while standing seam metal roofs may require clip-style or clamp-on snow guards. Understanding the compatibility of your roof material with snow guards is essential to ensure a proper installation.
3. Roof Pitch: The steepness or pitch of the roof is an important factor to consider when installing snow guards. Steeper roofs tend to have a higher risk of snow sliding off, making snow guards even more critical. However, the angle of the roof also affects the type and positioning of snow guards. Consulting with a professional will help determine the most suitable snow guard system for your roof pitch.

Types of Snow Guards

There are several types of snow guards available in the market, each designed to accommodate different roof types, styles, and conditions. Some common types include:

1. Adhesive-Mounted Snow Guards: These snow guards are attached using adhesives or sealants specifically designed for roof applications. They are typically used on sloped roofs with asphalt shingles or other types of smooth-surfaced roofing materials.
2. Screw-Down Snow Guards: These snow guards are secured to the roof surface using screws. They are a popular option for metal roofs, as they can be easily attached without piercing or compromising the roof’s integrity.
3. Clamp-On Snow Guards: These snow guards use clamps or brackets that grip onto the seams or ribs of standing seam metal roofs. They provide a secure attachment method without the need for drilling holes or damaging the roof material.

Installation Process

Installing snow guards on an old roof should be done by a professional to ensure a safe and effective installation. The process typically involves the following steps:

1. Assessment: A professional roofer will inspect the existing roof structure and evaluate its capability to support the additional weight and stress of the snow guards. They will also consider the roof material, pitch, and other factors to determine the most suitable snow guard system.
2. Preparation: The roof surface may need to be cleaned and prepared for the installation of snow guards. This may involve removing debris, repairing any damaged areas, or applying primer/adhesive if necessary.
3. Placement: The snow guards will be strategically placed along the eaves, valleys, and other predetermined areas to effectively hold the snow in place. The exact positioning will depend on the roof’s pitch, shape, and other architectural factors.
4. Attachment: The chosen snow guard system will be securely attached to the roof using the appropriate method, such as adhesives, screws, or clamps. The installation will be performed according to manufacturer guidelines and industry best practices.

While it is indeed possible to install snow guards on an old roof, several factors must be considered to ensure a safe and effective installation. Roof condition, material, pitch, and the choice of snow guard system are all crucial elements to take into account. Consulting with a professional roofer is highly recommended to assess your roof’s suitability for snow guards and to ensure a proper installation that will provide the desired protection during heavy snowfall.