Roof waterproofing in Pearland, TX
Flat roofs, low slopes and the joints where water gets in. We seal them so the rain stays outside. Estimates are free.
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What is roof waterproofing?
Roof waterproofing makes the parts of a roof that cannot shed water fast enough hold it out instead. That means a membrane on flat and low-slope roofs, and sound flashing wherever the roof meets a wall, chimney, vent or skylight. Odyssey Roofing & Waterproofing installs and replaces flat and single-ply roofs in Pearland, TX.
WaterproofingEstimate free
- Flat and single-ply membrane roofs installed and replaced
- Flashing at walls, chimneys, vents and skylights
- Low-slope porch roofs and addition tie-ins
- Leaks traced on flat and low-slope sections
- Wet decking under the old roof replaced
Prices are given before any work starts. Call (832) 794-1035.
Why do flat roofs and low slopes leak?
Shingles are not waterproof. They are overlapping scales that rely on slope to move water along before it can get underneath. Below about 2 in 12 (two inches of rise for every foot), water moves too slowly and backs up under them. Those roofs need a continuous membrane.
| Trouble spot | Why it leaks | How it is made watertight |
|---|---|---|
| Flat or low-slope roof | Water sits, and seams and blisters open up | A new single-ply membrane with sealed seams |
| Roof-to-wall joints | Flashing is missing, short, or caulked where it should be lapped | Step flashing with counter flashing over it |
| Chimneys | Mortar and sealant crack, and water runs down behind the brick | New flashing on all four sides |
| Vent pipes | The rubber boot splits in the sun | A new boot |
| Porch and addition tie-ins | A low roof meets a steeper one and takes all its water | Membrane under the joint, flashing over it |
| Dead valleys | Two slopes drain into a wall with nowhere to go | A lined, sloped channel to the edge |
Our waterproofing is roof work: membranes and flashing. If water is coming in below ground or through a wall, call (832) 794-1035 and describe it, and we will tell you plainly whether it is a job for us.
How a flat roof is made watertight
The membrane goes down fast. Most of the work, and most of the leaks, are at the edges and corners.
Find where the water sits
Ponding leaves rings and dirt lines. They show where the roof has settled or a drain has blocked.
Check what is underneath
A leaking flat roof often has wet boards under it. Those come out before anything goes down.
Sort the drainage
Water needs a way off. Drains, scuppers and gutters are cleared so the new roof is not asked to be a pond.
Lay the membrane
Sheets go down with sealed laps, turned up at walls and curbs so the roof is one continuous skin.
Flash every edge
Corners, pipes and wall joints get metal and boots. A flat roof leaks at its details long before its middle.
What changes the price of waterproofing?
Flat roofs are measured in squares like any other roof. The membrane is a small part of the bill.
| Size of the roof | More squares, more membrane and more labour. |
|---|---|
| What comes off | Old layers and wet decking have to be removed and hauled. |
| Edges and penetrations | Every pipe, curb, wall and corner is hand work. |
| Drainage | A roof that ponds may need its fall corrected before it is covered. |
How much rain does a Pearland roof handle?
The Houston area gets more than 50 inches of rain in a typical year. One inch of rain on a 2,000 square foot roof is about 1,250 gallons, so that roof sees over 60,000 gallons a year, much of it in downpours.
A pitched roof passes that water to the gutters in seconds. A flat roof holds some of it for hours. Any open seam, short flashing or blocked drain gets tested many times a year here, which is why flat roofs on the Gulf Coast fail at the details first.
What customers have written about us
Odyssey Roofing and remodeling has given my old home new life. Odyssey is reliable, sincere, honest and dependable.
He is extremely professional and willing to be accommodating and work with you!
Copied word for word from the pages linked above. These were written when we traded as Odyssey Roofing & Remodeling: same business, same phone number.
Waterproofing questions
Can a flat roof be repaired, or does it need replacing?
Small splits, open seams and failed flashing can often be repaired. When water has soaked the layers under the membrane, or the roof has been patched many times, a new membrane costs less than chasing leaks.
Why does water pool on my flat roof?
Flat roofs are built with a slight fall toward a drain, scupper or gutter. Water pools where the fall has settled, where a drain is blocked, or where the roof was built too level. Water still standing two days after rain is worth having looked at.
Can shingles go on a low-slope roof?
Not below about 2 in 12, which is two inches of rise for every foot. Shingles rely on slope to shed water. Under that pitch water backs up beneath them, and the roof needs a membrane.
Do you waterproof basements or foundations?
Our waterproofing is roof work: membranes and flashing. If water is coming in below ground, call (832) 794-1035 and describe it, and we will tell you whether it is a job for us.
Are waterproofing estimates free?
Yes. Estimates are free. Call (832) 794-1035 or send the order blank on this page.
Send the order blank, or measure your roof first
Estimates are free. Tell us what the house needs and we call you back during working hours, Monday to Friday 7am to 5pm and Saturday 7am to noon.
Order blank
Name and phone are all we need. No fax number required. Prefer to talk? Call (832) 794-1035.
How big is my roof?
Roofing is priced by the square: 100 square feet of roof. Put in the footprint of the house and the pitch, and this works out the rest.
- Squares
- 20.5
- Square feet
- 2,050
- Shingle bundles
- 62
A guide for a simple roof: it adds a 1 ft overhang and 10% for cuts and waste (15% on a hip roof), at three bundles to the square. Dormers, valleys and porches add more. The estimate visit gets the real number.