Re-Roof Review Training

PURPOSE:

This Reroof Standard Training establishes clear, consistent guidelines for the reroofing process. This training aims to enhance safety, ensure quality workmanship, and promote efficiency in all solar projects. This document is built to standardize between installation and sales of when it is required to re-roof before the solar installation. for all departments at ION.

TABLE OF CONTENTS:

Composition Shingle Roof Membrane

Roof Life

Shingle Condition

Missing Shingles

Water Stain

Surveyor/Installer Safety

Roof Layering

Low-Pitched Composition Shingles

Concrete Tile Roof Membrane

Broken Tiles

Underlayment

Flat Roof Membrane

Wear

Pooling

Sheet Metal Roof Membrane

Rust

Bent / Broken

COMPOSITION SHINGLE ROOF MEMBRANE

Roof Life

The roof's age will not be a determining factor. Decisions regarding reroofing will be based solely on the roof's condition.

Roofs deemed to have four years of life or more will not be called out for reroofing unless there are damages that fall within the outlined standard operating procedures. Each situation will be evaluated on a case-by-case basis. Roofs with less than four years of life will likely exhibit damages or granule loss that do not comply with the safety guidelines mentioned in this SOP.

Shingle Condition

The condition of shingles is assessed based on factors such as brittleness, granule loss, cracking, and the visibility of fiberglass.

Shingle condition is not a qualifying factor unless the following is present:

Fiberglass and Missing Granules. If more than half an inch of fiberglass is showing, the shingles will be considered to be in poor condition and will require replacement. This will be the same for granule loss. If the edges of the shingles have shed ½ inch of granules around the shingle we will know the granules are way too loose and we will cause extensive damage to the shingles when installing.

Missing Granules Impacting Installer Safety. If the surveyor is unable to walk on the roof due to loose granules, a reroof will be required. Walking on the shingles while connected to ropes will cause further damage to the shingles. The risk of slipping and dropping tools or panels presents a significant safety concern. This SOP will be applied to roofs with a pitch of 5/12 (23 degrees) or greater. Granule loss will still be considered for roofs with a pitch of less than 23 degrees, but the safety aspect is significantly less of a concern compared to steeper roofs. While loose granules may indicate wear, the risk of damage or accidents is lower allowing for different evaluation and maintenance approaches.

Reroof NOT Needed Example(s):

Reroof Required Example(s):

Missing Shingles

Missing Shingles are only a qualifying factor for a reroof if they are located where placing the pv array and there are more than 2 locations of missing shingles.

Missing shingles under the array. If only a couple of shingles are missing under where placing the array it will be assumed that shingle replace will be adequate without a reroof.

Ridge Cap Damage. If there is damage to the ridge cap or shingles near it, a complete/ partial reroof will not be necessary as long as the damage has not allowed extensive water damage under the roof section being installed. Damaged ridge caps can be addressed after the solar installation is complete. By fixing the ridge cap post-installation, we can ensure that the solar system is securely in place while still maintaining the roof's integrity. This approach allows for effective repairs without the added cost and effort of a full reroof as long as the damage has not allowed extensive water damage.

Water Stain

Water stains do not necessarily warrant reroofing unless there is visible extensive damage to the shingles or if water is pooling and unable to drain off the roof. In such cases, it’s important to address the underlying issues to prevent further damage. If the shingles are only discolored, reroofing will not be required as discoloration alone does not indicate a structural issue.

A lot of times a swamp cooler will cause discoloration but not cause damage to shingles or sheathing. If the sheathing in the attic has water damage it will be known it is not just discoloration but rather water damage that needs to be fixed.

If there is water damage in the attic beneath the water staining on the roof, it will need to be addressed, by repairing or reroofing. This ensures that any structural issues are resolved and prevents further damage.

Reroof Not Required Example

Water Stain

Water stains do not necessarily warrant reroofing unless there is visible extensive damage to the shingles or if water is pooling and unable to drain off the roof. In such cases, it’s important to address the underlying issues to prevent further damage. If the shingles are only discolored, reroofing will not be required as discoloration alone does not indicate a structural issue.

A lot of times a swamp cooler will cause discoloration but not cause damage to shingles or sheathing. If the sheathing in the attic has water damage it will be known it is not just discoloration but rather water damage that needs to be fixed.

If there is water damage in the attic beneath the water staining on the roof, it will need to be addressed, by repairing or reroofing. This ensures that any structural issues are resolved and prevents further damage.

Reroof Not Required Example:

Reroof Required Example:

The moss is on top of the shingles and will likely tear up granulation during removal, which would require a reroof to repair.

Roof Layering

According to building codes, the maximum allowable layers of shingles on a roof are two. If more than two layers are present, reroofing will be required. There are NO exceptions to this rule as it is code and could cause failed inspections. The surveyor must access the top of the ladder for every composite shingle job to check the number of layers and take a photo.

Low Pitch Composition Shingle Roof

Any roof section that is 9 degrees or less that has a regular composite shingle is required to be reroof to Rolled Composition shingles.This is due to roofing code and drainage reasons. There are no exceptions to this rule as it could cause issues with inspections passing and longevity of the penetrations.

Broken Concrete Tiles

Broken Tiles. If there are 10 or fewer tiles that are broken or cracked across all the roof sections we are installing on, repairs can be performed at the time of installation. An SpS roofing object will still be created to alert that material will be needed at installation. However, if any underlayment damage is identified, a partial reroof is required with no exceptions, while a full reroof remains optional.

When more than 10 tiles are found to be damaged, a reroof will be required. A Service Technician will be dispatched to assess the situation and determine the extent of tile and underlayment damage, as well as whether to proceed with a reroof or repairs in-house or with a contractor.

II. Flat Roof Membrane

Flat Roof Water Pooling

Pooling water in the center of a flat roof membrane can lead to serious issues, including membrane damage and leaks. Over time, standing water can weaken roofing materials and encourage mold growth.

If a flat roof has puddles that last longer than 36 hours, then a reroof is required to resolve these problems. Since it's often difficult to inspect the sheathing in the attic, it's required to take a cautious approach and address any visible issues before proceeding with installation. We will be looking for pooling but also permanent indentation that we can tell pools in the wetter times of the year. Additionally, tares and hail damage are required to be repaired, as they are likely entry points for leaks and can further compromise the roof's integrity.

Rolled Comp will be looked at the same way as regular shingles as far as granule loss and cracking. It will also follow the pooling rules mentioned for flat roofing material.

II. Sheet Metal Roof Membrane

Sheet Metal Membrane

Severe damage, including dents, punctures, or extensive rust and corrosion, can significantly compromise a metal roof's integrity. If rust is present in 25% or more of the sections being installed, a reroof is required. This is because the rust will continue to spread after installation, leading to leaks at penetrations and weakening the metal that has been installed on. Addressing these issues before proceeding with installation is crucial to ensure the longevity and reliability of the roof and system.

Additionally, penetrations and loose metal sheets are required to be repaired, as they are likely entry points for leaks and can further compromise the roof's integrity.