Frequently asked questions

We consider customer service to be the most important value we offer. If you do not find an answer to your question, please call or e-mail us at We appreciate the chance to be of service.

Q: The square footage of my project has changed since it was bid. How much will that affect the final price?
Because pricing is dependent upon square footage and depth, it is likely the price will be altered. Contact your salesperson and they will notify you of the exact amount.

Q: Will my pour be affected by the outside temperature?
Although we can pour in almost all conditions, outside temperatures can affect pours and in extreme conditions we may need to postpone. In order to install our products, the inside temperature must be at least 50 degrees Fahrenheit. This temperature must be maintained until the product has dried completely.

Q. What kind of water access and pressure do you need?
We require faucet or well access within 200' of the pour with 35-40 lbs of pressure. Specific location/requirements will be discussed prior to the pour.

Q: We have a stairwell. What do we need to do in this area?
A bulkhead (piece of wood) needs to be installed at the top of the stairway. This provides a place for the pour to stop and eliminates crumbing at the stair's edge. The bulkhead will need to be the same depth as the pour depth. This allows an even floor/step surface. The bulkhead will become a permanent fixture or it may be replaced with finished lumber.

Example: If you are pouring 1 1/2" of gypsum underlayment on the floor above the stairwell, you will also need to provide a piece of wood that is 1 1/2" tall and runs the width of the stairs and/or landing.

Q: What is the best way to secure our radiant floor heat tubing?
Tubing needs to be as flat as possible to ensure that it is covered with the proper depth of product and does not incur damage once the pour is complete. The tubing or cable will be secured by stapling or gluing (depending on the type of subfloor) every 24 to 30 inches.

Q: How long will it take for my floor to dry and how can I tell when it is?
Under normal drying conditions our product dries 1/8" per day. Normal drying conditions require good ventilation and dry air. Air movement is the key factor in drying time. Humidity and cold weather tend to increase drying time; direct sunlight tends to decrease drying time.

Q: How do I install floor goods over your products?
All of the Maxxon underlayments we install provide an excellent base for your finished floor goods. Our customers have successfully installed glue down vinyl and composition tile; ceramic, quarry, and marble tile; glue down, 'floating', or nail down wood flooring; and carpet.

We can provide you with the proper recommendations for the particular floor goods you plan to install. Contact us for your copy of Maxxon's Procedures for Attaching Finished Floor Goods to Maxxon Underlayments.