Sundown roof cooling system for RVs

Your roof is also your ceiling.

We identify the membrane, measure the roof, then tell you what it takes.

Published behaviour

A thin roof hides nothing.

The bed sits under the hottest panel on the rig.

Published radiative split

0.88Reflected away
0.12Absorbed residual
0.89Emittance, releases the residual

Producer-published values. Match the stocked formula and batch before quoting a roof.

Published producer values, not a predicted cabin result

The short version

The bed is under the hottest panel.

The pain

Thin roof, no attic.

There is a mattress and a sheet of membrane between you and the afternoon.

The fix

Send the light back.

A white ceramic coat, over a membrane we identified first.

0.88solar reflectance

What you keep

Year three is published too.

Reflectance at three years is 0.74, not a fresh-coat number.

0.74reflectance at 3 years

Why the price waits

The tape decides the gallons.

Measured, never estimated: measured roof area, released coverage rate, wet-film target, and material quantity determine the RV kit.

Same length, different roof.

Two coaches the same length can differ by an air conditioner, four vents and an old patch.

Fit before product

Five questions decide the system.

Five questions decide the system: membrane identity, water first, movement profile, seam compatibility and film control, called out on a cutaway of an RV roof.
  1. Membrane identity: EPDM, TPO, fiberglass or metal.
  2. Water first: Soft deck and trapped water get fixed first.
  3. Movement profile: Travel flexes a roof. A driveway does not.
  4. Seam compatibility: Old silicone can lock out the finish you want.
  5. Film control: Gallons follow the tape, not an RV-size chart.

RV kit promises: Built for a roof that moves.. EPDM. TPO. Fiberglass. Metal.. Gallons follow the tape, not a chart.. A soft deck stops the job. We say so.

What ships

Buckets, and a guide you can lay out on the roof.

  • Roof Coat, five-gallon bucket, white
  • Optional ceramic Clear Coat, five-gallon bucket, over our Roof Coat only
  • The written application guide, published at /guide and linked from your confirmation

It ships in buckets, not cans.

Clear Coat is the same ceramic without the white, and it only goes over our Roof Coat.

Five-gallon buckets only: $445 for one, down to $370 each on a pallet of ten. Ground shipping is its own line, by region, before you pay. Managed installation is quoted from the measured roof. Figure about 32 sq ft per gallon finished on a flat roof, two to three coats.

1 x Son Shield Roof Coat, white, 5-gallon bucket
$445.00
Ground shipping, West, 1 bucket
$95.00
Total at checkout
$540.00

$445.00 a bucket at this quantity. One bucket is $445.00, two or three $420.00 each, four to nine $395.00 each, ten and up $370.00 each on a pallet. Five-gallon buckets only; we do not sell gallons.

Lower 48 only. Alaska, Hawaii and addresses outside the region you picked are re-quoted by a person before anything ships, and refunded in full if the quote is not right for you.

Founding roof program

We need the first roofs to become the evidence.

Founding pricing, in exchange for scheduled measurements and permission to publish your roof. Not a scripted testimonial.

Apply with my roof