Built-up Roof Systems

Roof System and Base Flashings: Carefully check the entire roof surface and vertical base flashings for signs of abnormal conditions such as:

• New penetrations are often unauthorized and improperly installed
• Excessive wear and tear or surfacing loss
• Damage such as cuts, punctures or breaks
• Wind or storm damage
• Visible attacks by spilled chemicals or environmental contaminants (i.e. bird feces)

Areas in need of repair must be corrected with like procedures and materials. Variations to the original application methods may be needed depending upon job circumstances. These variations must be pre-approved by Malarkey.

Metal Flashings and Roof Accessories

Gravel-stops/Edge Metal: Check carefully for separation between the membrane and metal, rusting, wind damage or breaks at lap joints. Re-secure as needed and reseal using like membrane sheets embedded in a uniform layer of hot asphalt or Malarkey adhesive.

Metal Roof Jacks: Carefully check all pipe and vent locations for cracking or separation of membrane sheets from the metal flanges. Check condition of the secondary seal of sealant around the base of the jack. Reseal as needed with Malarkey adhesive/sealant. If sealant is used at the top of the roof jack check for cracks and separation.

Drains and Scuppers: Check all locations and clear the outlets of any obstructions. Ensure drain bolts are tight and clamping rings are not cracked. Check for voids, gaps, or separations between the roof membrane and metal flanges. Repair breaks or voids with like membrane sheets embedded in a uniform bed of Malarkey adhesive.

Metal Counter Flashings: Check for rust, damage due to wind or vandalism and ensure that metal is securely fastened. Check the condition of sealants. Replace any missing or damaged metal that is not repairable. Re-secure and reseal as necessary.

Pitch Pans: Though not covered by the warranty, check for cracks or separation between the roof membrane and metal flanges. Check the condition of pitch pan filler for excessive shrinkage. Repair breaks at flanges with like membrane sheets embedded in a uniform layer of Malarkey adhesive. Refill pitch pan with proper pitch pan filler material. Installation of pitch pan covers or caps can provide additional protection.

Metal Wall Copings, Drip Edge Fascia, and Guttering: Check condition of metal for rust, damage due to wind, vandalism, and the condition of seam covers and sealants. Ensure coping is securely fastened. Replace any missing or damaged metal that is not repairable. Re-secure and reseal as necessary.

Roof-Mounted Equipment: Curb-mounted vents, ducts, skylights and air conditioning units must be checked for damage from service personnel, wind damage and leakage of chemicals. Minor damage is repairable by applying like membrane sheets adhered in hot asphalt or cold adhesives.

Note: The owner or in-house maintenance persons can do many maintenance repairs, but Malarkey recommends that all significant repairs or work that requires a working knowledge of roofing is best left to a Malarkey Approved Roofing Contractor.

Cleaning the Roof Surface, Gutters, and Downspouts

Roofs should be kept clean on a regular basis. All trash, debris and dirt that accumulate should be collected and removed from the roof. Leaves and foliage must be kept from hindering drainage of water in valleys and outlets.

 

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Shingled Roof Systems

Roof System: Carefully check the entire roof surface and all flashings for signs of abnormal conditions such as:

• Loose tabs
• New penetrations are often unauthorized and improperly installed
• Excessive wear and tear or surfacing loss
• Damage such as cuts, punctures or breaks
• Wind or storm damage
• Visible attacks by spilled chemicals or environmental contaminants (i.e. bird feces)

Areas in need of repair must be corrected with like procedures and materials. Variations to the original application methods may be needed depending upon job circumstances. These variations must be pre-approved by Malarkey.

Shingles: Carefully check the shingles for any tabs that may be loose. Hand-seal any loose tabs with a spot of shingle tab adhesive.

Chimneys, Walls, Skylights, Vents:   Check the following:

• Metal step flashing and counter flashing is present and secure.
• Shingles are embedded in roof cement where they contact the metal flashing.

Counter Flashing, Drip Edge Fascia, and Guttering: Check condition of metal for rust, damage due to wind, vandalism, and the condition of seam covers and sealants. Ensure coping is securely fastened. Replace any missing or damaged metal that is not repairable. Re-secure and reseal as necessary.

Roof-Mounted Equipment: Curb-mounted vents, ducts, skylights and air conditioning units must be checked for damage from service personnel, wind damage and leakage of chemicals.

Metal Roof Jacks: Carefully check all pipe and vent locations for cracking or separation of shingle from the metal flanges. Check condition of the secondary seal of roof cement or sealant around the base of the jack. Reseal as needed with plastic roof cement.

Cleaning the Roof Surface, Gutters, and Downspouts

Roofs should be kept clean on a regular basis. All trash, debris and dirt that accumulate should be collected and removed from the roof. Leaves and foliage must be kept from hindering drainage of water in valleys and outlets.