Residential garage door thermal break features

Here is what you need to know about Garaga polyurethane injected doors:

1-The type of seal between the sections: triple InterlockTM PVC molding mechanically linking the front and back metal sheets while preventing any contact between them which eliminates any thermal transfer (fig. #1).

Residential garage door thermal break features
fig.#1

2- Wood end blocks perform a dual purpose: they insure a thermal break while providing better fastening of the end hinges which are attached to a piece of solid wood with lag screws (fig. #2). Standard with other manufacturers for end hinge fastening is a self-tapping screw going through a steel end cap, door sheet and hinge strip for a total thickness of approximately 0.11" (2.7 mm), thus engaging only about 2 or 3 threads (fig. #3). Note: a steel end cap allows thermal transfer, thus reducing the advertised R-value.

Residential garage door thermal break features
fig.#2
Residential garage door thermal break features
fig.#3

3- Bottom weather seal: made of TPE (thermoplastic elastomer). "U"-shaped mounted on an extruded PVC retainer (fig. #4). The high rubber content allows the seal to remain flexible during cold weather (-62°F, -52°C) maintaining the seal unlike other products that have a low rubber content which can harden in cold weather therefore causing seal failure, cracking and splitting over time.

Residential garage door thermal break features
fig.#4

4- Door frame weather seal: single-lipped seal overlapping the door (fig. #5). The thermoplastic resin is used in all Garaga weather strips for better and long-lasting performances.

Residential garage door thermal break features
fig.#5

5- Top panel weather seal: Garaga offers an optional 3" (76 mm) weather seal that can be installed on the top panel (fig. #6), which provides extra weather tightness.

Residential garage door thermal break features
fig.#6

1-The type of seal between the sections: triple InterlockTM PVC molding mechanically linking the front and back metal sheets while preventing any contact between them which eliminates any thermal transfer (fig. #1).

Residential garage door thermal break features
fig.#1

2- Wood end blocks perform a dual purpose: they insure a thermal break while providing better fastening of the end hinges which are attached to a piece of solid wood with lag screws (fig. #2). Standard with other manufacturers for end hinge fastening is a self-tapping screw going through a steel end cap, door sheet and hinge strip for a total thickness of approximately 0.11" (2.7 mm), thus engaging only about 2 or 3 threads (fig. #3). Note: a steel end cap allows thermal transfer, thus reducing the advertised R-value.

Residential garage door thermal break features
fig.#2
Residential garage door thermal break features
fig.#3

3- Bottom weather seal: made of TPE (thermoplastic elastomer). "U"-shaped mounted on an extruded PVC retainer (fig. #4). The high rubber content allows the seal to remain flexible during cold weather (-62°F, -52°C) maintaining the seal unlike other products that have a low rubber content which can harden in cold weather therefore causing seal failure, cracking and splitting over time.

Residential garage door thermal break features
fig.#4

4- Door frame weather seal: single-lipped seal overlapping the door (fig. #5). The thermoplastic resin is used in all Garaga weather strips for better and long-lasting performances.

Residential garage door thermal break features
fig.#5

5- Top panel weather seal: Garaga offers an optional 3" (76 mm) weather seal that can be installed on the top panel (fig. #6), which provides extra weather tightness.

Residential garage door thermal break features
fig.#6

The advertised R-value of a sectional door means very little if the door does not have a complete thermal break system and a proper weather seal system around all four sides of the door and between the door sections. Without these features, wind, heat and cold will make their way around the door and between the sections thus greatly reducing the R-value of the door system. Save "real" energy!

Document to download : Thermal Break PDF

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