Menifee & Riverside County Torch Down
Torch down (modified bitumen) is a roof for flat and low-slope sections in Menifee and Riverside County: porches, additions, mobile homes and commercial buildings.
How We Do It
Flat and low-slope roofs, torch-welded
We roll out the sheets and heat-weld them with a torch, so the seams fuse into one continuous layer. We flash it at the walls, the vents, and the line where the flat roof meets the shingles.
Cap sheets come in white, which reflects the sun, or darker colors like the brown roof in the photos.
What The Job Involves
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Removing the old flat roof
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Deck repairs
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Base sheet and cap sheet, torch-welded
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Flashing at walls, vents and shingle edges
From Our Jobs
Torch Down Photos
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Torching the white cap sheet
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Flashing where the flat roof meets the wall
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Flat roof between two shingle roofs
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New cap sheet around the vents
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Flat roof tied into the shingle valley
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White cap sheet, finished
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Brown cap sheet on a low-slope roof
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Brown cap sheet, finished
Signs To Watch For
When A Flat Roof Needs Work
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Water That Sits
Puddles that stay on a flat roof for days after rain wear the surface down and find every weak seam. The roof needs to drain.
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Blisters And Cracks
Bubbles in the cap sheet mean moisture or air is trapped underneath. Cracked or blistered spots let water into the layers below.
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Seams And Edges Lifting
Where sheets overlap, or meet a wall or a vent, the seams and flashing should lie sealed and flat. Lifted edges are where flat roofs start to leak.
Permits & Title 24
Flat Roofs And The Cool Roof Rule
A low-slope roof is one pitched under 2:12. In Climate Zone 10, replacing more than half of one means the new roofing needs an aged solar reflectance of at least 0.63 and a thermal emittance of at least 0.75, or an SRI of at least 75. The roof also needs R-14 continuous insulation or a roof assembly U-factor of 0.039, unless it already has R-10 or more, or another exception applies.
Insulation can stand in for reflectance: with R-24 continuous insulation at the deck, there is no reflectance minimum at all. Our permit guide has the full table.
Source: 2025 California Energy Code, Title 24 Part 6, Section 150.2(b)1I. Checked October 2, 2026.
Photo: A white cap sheet we torched down, finished
Questions
Torch Down Questions
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White or dark cap sheet?
White reflects the sun and keeps the roof cooler. When more than half of a low-slope roof is replaced in Climate Zone 10, the new roofing generally has to reach an aged reflectance of 0.63, unless thicker insulation or another exception covers it. A darker cap sheet, like the brown one in our photos, works where no such minimum applies.
Source: 2025 California Energy Code, Title 24 Part 6, Section 150.2(b)1I.
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What is torch down roofing?
Torch down is modified bitumen: sheets rolled out over the roof and heat-welded with a torch, so the seams fuse into one continuous layer.
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Where does torch down go?
On flat and low-slope sections: porches, additions, mobile homes and commercial buildings, and the flat parts between sloped roofs, like the job in our photos.
Page updated October 3, 2026.
Free Quotes
Talk To Us About Your Roof
Massivo Roofing Inc gives free quotes on torch down. Call (619) 227-4340 or send the quote form, and we will come look at the roof.
Se Habla Español. California contractor license #1131290.
Projects
