Energy Efficient Windows - Cost and Timeframe?
Energy Efficient Windows typically costs about 15% more than ordinary glass, but it reduces energy use by as much as 30-50%, by using most of the heat gain in winter but keep the harmful UV rays out during the summer, and when used in insulated glass units – can have even better benefits.
stevenjames
in Doors & Windows 10 years and 6 months ago
4
Please log in, in order to post replies!
DouglasAlan | 12 years and 6 months ago
string(1) "1"
object(WP_User)#4891 (8) {
["data"]=>
object(stdClass)#4848 (12) {
["ID"]=>
string(6) "100332"
["user_login"]=>
string(11) "DouglasAlan"
["user_pass"]=>
string(34) "$P$BkTev016pVRsr4A/uVpj6jtiknfj1Z1"
["user_nicename"]=>
string(11) "douglasalan"
["user_email"]=>
string(22) "doug.hinnant@gmail.com"
["user_url"]=>
string(33) "http:///forums/users/douglasalan/"
["user_registered"]=>
string(19) "2017-08-10 14:32:57"
["user_activation_key"]=>
string(0) ""
["user_status"]=>
string(1) "0"
["display_name"]=>
string(11) "DouglasAlan"
["spam"]=>
string(1) "0"
["deleted"]=>
string(1) "0"
}
["ID"]=>
int(100332)
["caps"]=>
array(2) {
["subscriber"]=>
bool(true)
["bbp_participant"]=>
bool(true)
}
["cap_key"]=>
string(15) "wp_capabilities"
["roles"]=>
array(2) {
[0]=>
string(10) "subscriber"
[1]=>
string(15) "bbp_participant"
}
["allcaps"]=>
array(4) {
["read"]=>
bool(true)
["level_0"]=>
bool(true)
["subscriber"]=>
bool(true)
["bbp_participant"]=>
bool(true)
}
["filter"]=>
NULL
["site_id":"WP_User":private]=>
int(1)
}
I’m looking to replace two windows, approximately 30″ by 96″, with energy efficient ones. How much am I looking at for parts and labor? How long should I expect the work to take? Thanks.
berniceshola | 12 years and 6 months ago
string(1) "1"
object(WP_User)#4889 (8) {
["data"]=>
object(stdClass)#4892 (12) {
["ID"]=>
string(6) "209445"
["user_login"]=>
string(12) "berniceshola"
["user_pass"]=>
string(63) "$wp$2y$10$gwDmwyYYyzH/pPO3w5IQLeFbET/qg5Uvdf5jZstpNefVx8uCfGm/G"
["user_nicename"]=>
string(12) "berniceshola"
["user_email"]=>
string(33) "c.r.ystal.nel.s.on.3445@gmail.com"
["user_url"]=>
string(0) ""
["user_registered"]=>
string(19) "2024-06-29 07:24:25"
["user_activation_key"]=>
string(0) ""
["user_status"]=>
string(1) "0"
["display_name"]=>
string(12) "berniceshola"
["spam"]=>
string(1) "0"
["deleted"]=>
string(1) "0"
}
["ID"]=>
int(209445)
["caps"]=>
array(1) {
["bbp_participant"]=>
bool(true)
}
["cap_key"]=>
string(15) "wp_capabilities"
["roles"]=>
array(1) {
[0]=>
string(15) "bbp_participant"
}
["allcaps"]=>
array(1) {
["bbp_participant"]=>
bool(true)
}
["filter"]=>
NULL
["site_id":"WP_User":private]=>
int(1)
}
$1500-2000, depending on windows you choose, and it’ll take half a day.
cate | 12 years and 6 months ago
string(1) "1"
object(WP_User)#4890 (8) {
["data"]=>
object(stdClass)#4818 (12) {
["ID"]=>
string(6) "176696"
["user_login"]=>
string(4) "cate"
["user_pass"]=>
string(63) "$wp$2y$10$4JNbGAK5cKoEp6kzsYVSBO7oMZphxvnQPCDInpVARCm3B1Dj6U75i"
["user_nicename"]=>
string(4) "cate"
["user_email"]=>
string(20) "cate@brownstoner.com"
["user_url"]=>
string(0) ""
["user_registered"]=>
string(19) "2017-08-10 14:24:59"
["user_activation_key"]=>
string(0) ""
["user_status"]=>
string(1) "0"
["display_name"]=>
string(13) "Cate Corcoran"
["spam"]=>
string(1) "0"
["deleted"]=>
string(1) "0"
}
["ID"]=>
int(176696)
["caps"]=>
array(2) {
["administrator"]=>
bool(true)
["editor"]=>
bool(true)
}
["cap_key"]=>
string(15) "wp_capabilities"
["roles"]=>
array(2) {
[0]=>
string(13) "administrator"
[1]=>
string(6) "editor"
}
["allcaps"]=>
array(191) {
["switch_themes"]=>
bool(true)
["edit_themes"]=>
bool(true)
["activate_plugins"]=>
bool(true)
["edit_plugins"]=>
bool(true)
["edit_users"]=>
bool(true)
["edit_files"]=>
bool(true)
["manage_options"]=>
bool(true)
["moderate_comments"]=>
bool(true)
["manage_categories"]=>
bool(true)
["manage_links"]=>
bool(true)
["upload_files"]=>
bool(true)
["import"]=>
bool(true)
["unfiltered_html"]=>
bool(true)
["edit_posts"]=>
bool(true)
["edit_others_posts"]=>
bool(true)
["edit_published_posts"]=>
bool(true)
["publish_posts"]=>
bool(true)
["edit_pages"]=>
bool(true)
["read"]=>
bool(true)
["level_10"]=>
bool(true)
["level_9"]=>
bool(true)
["level_8"]=>
bool(true)
["level_7"]=>
bool(true)
["level_6"]=>
bool(true)
["level_5"]=>
bool(true)
["level_4"]=>
bool(true)
["level_3"]=>
bool(true)
["level_2"]=>
bool(true)
["level_1"]=>
bool(true)
["level_0"]=>
bool(true)
["edit_others_pages"]=>
bool(true)
["edit_published_pages"]=>
bool(true)
["publish_pages"]=>
bool(true)
["delete_pages"]=>
bool(true)
["delete_others_pages"]=>
bool(true)
["delete_published_pages"]=>
bool(true)
["delete_posts"]=>
bool(true)
["delete_others_posts"]=>
bool(true)
["delete_published_posts"]=>
bool(true)
["delete_private_posts"]=>
bool(true)
["edit_private_posts"]=>
bool(true)
["read_private_posts"]=>
bool(true)
["delete_private_pages"]=>
bool(true)
["edit_private_pages"]=>
bool(true)
["read_private_pages"]=>
bool(true)
["delete_users"]=>
bool(true)
["create_users"]=>
bool(true)
["unfiltered_upload"]=>
bool(true)
["edit_dashboard"]=>
bool(true)
["update_plugins"]=>
bool(true)
["delete_plugins"]=>
bool(true)
["install_plugins"]=>
bool(true)
["update_themes"]=>
bool(true)
["install_themes"]=>
bool(true)
["update_core"]=>
bool(true)
["list_users"]=>
bool(true)
["remove_users"]=>
bool(true)
["promote_users"]=>
bool(true)
["edit_theme_options"]=>
bool(true)
["delete_themes"]=>
bool(true)
["export"]=>
bool(true)
["NextGEN Gallery overview"]=>
bool(true)
["NextGEN Use TinyMCE"]=>
bool(true)
["NextGEN Upload images"]=>
bool(true)
["NextGEN Manage gallery"]=>
bool(true)
["NextGEN Manage tags"]=>
bool(true)
["NextGEN Manage others gallery"]=>
bool(true)
["NextGEN Edit album"]=>
bool(true)
["NextGEN Change style"]=>
bool(true)
["NextGEN Change options"]=>
bool(true)
["email_users_notify"]=>
bool(true)
["email_single_user"]=>
bool(true)
["email_multiple_users"]=>
bool(true)
["email_user_groups"]=>
bool(true)
["NextGEN Attach Interface"]=>
bool(true)
["copy_posts"]=>
bool(true)
["ure_edit_roles"]=>
bool(false)
["ure_create_roles"]=>
bool(false)
["ure_delete_roles"]=>
bool(false)
["ure_create_capabilities"]=>
bool(false)
["ure_delete_capabilities"]=>
bool(false)
["ure_manage_options"]=>
bool(false)
["ure_reset_roles"]=>
bool(false)
["edit_ads_txt"]=>
bool(true)
["manage_feed_settings"]=>
bool(true)
["edit_feed_source"]=>
bool(true)
["read_feed_source"]=>
bool(true)
["delete_feed_source"]=>
bool(true)
["edit_feed_sources"]=>
bool(true)
["edit_others_feed_sources"]=>
bool(true)
["publish_feed_sources"]=>
bool(true)
["read_private_feed_sources"]=>
bool(true)
["delete_feed_sources"]=>
bool(true)
["delete_private_feed_sources"]=>
bool(true)
["delete_published_feed_sources"]=>
bool(true)
["delete_others_feed_sources"]=>
bool(true)
["edit_private_feed_sources"]=>
bool(true)
["edit_published_feed_sources"]=>
bool(true)
["manage_feed_source_terms"]=>
bool(true)
["edit_feed_source_terms"]=>
bool(true)
["delete_feed_source_terms"]=>
bool(true)
["assign_feed_source_terms"]=>
bool(true)
["edit_feed_item"]=>
bool(true)
["read_feed_item"]=>
bool(true)
["delete_feed_item"]=>
bool(true)
["edit_feed_items"]=>
bool(true)
["edit_others_feed_items"]=>
bool(true)
["publish_feed_items"]=>
bool(true)
["read_private_feed_items"]=>
bool(true)
["delete_feed_items"]=>
bool(true)
["delete_private_feed_items"]=>
bool(true)
["delete_published_feed_items"]=>
bool(true)
["delete_others_feed_items"]=>
bool(true)
["edit_private_feed_items"]=>
bool(true)
["edit_published_feed_items"]=>
bool(true)
["manage_feed_item_terms"]=>
bool(true)
["edit_feed_item_terms"]=>
bool(true)
["delete_feed_item_terms"]=>
bool(true)
["assign_feed_item_terms"]=>
bool(true)
["edit_feed_blacklist"]=>
bool(true)
["read_feed_blacklist"]=>
bool(true)
["delete_feed_blacklist"]=>
bool(true)
["edit_feed_blacklists"]=>
bool(true)
["edit_others_feed_blacklists"]=>
bool(true)
["publish_feed_blacklists"]=>
bool(true)
["read_private_feed_blacklists"]=>
bool(true)
["delete_feed_blacklists"]=>
bool(true)
["delete_private_feed_blacklists"]=>
bool(true)
["delete_published_feed_blacklists"]=>
bool(true)
["delete_others_feed_blacklists"]=>
bool(true)
["edit_private_feed_blacklists"]=>
bool(true)
["edit_published_feed_blacklists"]=>
bool(true)
["manage_feed_blacklist_terms"]=>
bool(true)
["edit_feed_blacklist_terms"]=>
bool(true)
["delete_feed_blacklist_terms"]=>
bool(true)
["assign_feed_blacklist_terms"]=>
bool(true)
["edit_feed_template"]=>
bool(true)
["read_feed_template"]=>
bool(true)
["delete_feed_template"]=>
bool(true)
["edit_feed_templates"]=>
bool(true)
["edit_others_feed_templates"]=>
bool(true)
["publish_feed_templates"]=>
bool(true)
["read_private_feed_templates"]=>
bool(true)
["delete_feed_templates"]=>
bool(true)
["delete_private_feed_templates"]=>
bool(true)
["delete_published_feed_templates"]=>
bool(true)
["delete_others_feed_templates"]=>
bool(true)
["edit_private_feed_templates"]=>
bool(true)
["edit_published_feed_templates"]=>
bool(true)
["manage_feed_template_terms"]=>
bool(true)
["edit_feed_template_terms"]=>
bool(true)
["delete_feed_template_terms"]=>
bool(true)
["assign_feed_template_terms"]=>
bool(true)
["edit_shortcoder"]=>
bool(true)
["read_shortcoder"]=>
bool(true)
["delete_shortcoder"]=>
bool(true)
["edit_shortcoders"]=>
bool(true)
["edit_others_shortcoders"]=>
bool(true)
["publish_shortcoders"]=>
bool(true)
["delete_shortcoders"]=>
bool(true)
["delete_published_shortcoders"]=>
bool(true)
["delete_others_shortcoders"]=>
bool(true)
["edit_published_shortcoders"]=>
bool(true)
["aioseo_manage_seo"]=>
bool(true)
["aioseo_page_analysis"]=>
bool(true)
["aioseo_page_general_settings"]=>
bool(true)
["aioseo_page_advanced_settings"]=>
bool(true)
["aioseo_page_schema_settings"]=>
bool(true)
["aioseo_page_social_settings"]=>
bool(true)
["rank_math_edit_htaccess"]=>
bool(true)
["rank_math_titles"]=>
bool(true)
["rank_math_general"]=>
bool(true)
["rank_math_sitemap"]=>
bool(true)
["rank_math_404_monitor"]=>
bool(true)
["rank_math_link_builder"]=>
bool(true)
["rank_math_redirections"]=>
bool(true)
["rank_math_role_manager"]=>
bool(true)
["rank_math_search_console"]=>
bool(true)
["rank_math_site_analysis"]=>
bool(true)
["rank_math_onpage_analysis"]=>
bool(true)
["rank_math_onpage_general"]=>
bool(true)
["rank_math_onpage_advanced"]=>
bool(true)
["rank_math_onpage_snippet"]=>
bool(true)
["rank_math_onpage_social"]=>
bool(true)
["rank_math_admin_bar"]=>
bool(true)
["rank_math_analytics"]=>
bool(true)
["rank_math_content_ai"]=>
bool(true)
["srm_manage_redirects"]=>
bool(true)
["SPF Manage Analytics"]=>
bool(false)
["administrator"]=>
bool(true)
["editor"]=>
bool(true)
}
["filter"]=>
NULL
["site_id":"WP_User":private]=>
int(1)
}
If you are lucky enough to have original windows, you can make them more energy efficient than replacement windows with maintenance and storms. There are a lot of disadvantages to replacement windows, which unfortunately we have: They are very expensive, they don’t last long, and they sit inside a frame inside a frame so they look unattractive and reduce the size of the window glass and the amount of light and view.
cate | 12 years and 6 months ago
string(1) "1"
object(WP_User)#4902 (8) {
["data"]=>
object(stdClass)#4901 (12) {
["ID"]=>
string(6) "176696"
["user_login"]=>
string(4) "cate"
["user_pass"]=>
string(63) "$wp$2y$10$4JNbGAK5cKoEp6kzsYVSBO7oMZphxvnQPCDInpVARCm3B1Dj6U75i"
["user_nicename"]=>
string(4) "cate"
["user_email"]=>
string(20) "cate@brownstoner.com"
["user_url"]=>
string(0) ""
["user_registered"]=>
string(19) "2017-08-10 14:24:59"
["user_activation_key"]=>
string(0) ""
["user_status"]=>
string(1) "0"
["display_name"]=>
string(13) "Cate Corcoran"
["spam"]=>
string(1) "0"
["deleted"]=>
string(1) "0"
}
["ID"]=>
int(176696)
["caps"]=>
array(2) {
["administrator"]=>
bool(true)
["editor"]=>
bool(true)
}
["cap_key"]=>
string(15) "wp_capabilities"
["roles"]=>
array(2) {
[0]=>
string(13) "administrator"
[1]=>
string(6) "editor"
}
["allcaps"]=>
array(191) {
["switch_themes"]=>
bool(true)
["edit_themes"]=>
bool(true)
["activate_plugins"]=>
bool(true)
["edit_plugins"]=>
bool(true)
["edit_users"]=>
bool(true)
["edit_files"]=>
bool(true)
["manage_options"]=>
bool(true)
["moderate_comments"]=>
bool(true)
["manage_categories"]=>
bool(true)
["manage_links"]=>
bool(true)
["upload_files"]=>
bool(true)
["import"]=>
bool(true)
["unfiltered_html"]=>
bool(true)
["edit_posts"]=>
bool(true)
["edit_others_posts"]=>
bool(true)
["edit_published_posts"]=>
bool(true)
["publish_posts"]=>
bool(true)
["edit_pages"]=>
bool(true)
["read"]=>
bool(true)
["level_10"]=>
bool(true)
["level_9"]=>
bool(true)
["level_8"]=>
bool(true)
["level_7"]=>
bool(true)
["level_6"]=>
bool(true)
["level_5"]=>
bool(true)
["level_4"]=>
bool(true)
["level_3"]=>
bool(true)
["level_2"]=>
bool(true)
["level_1"]=>
bool(true)
["level_0"]=>
bool(true)
["edit_others_pages"]=>
bool(true)
["edit_published_pages"]=>
bool(true)
["publish_pages"]=>
bool(true)
["delete_pages"]=>
bool(true)
["delete_others_pages"]=>
bool(true)
["delete_published_pages"]=>
bool(true)
["delete_posts"]=>
bool(true)
["delete_others_posts"]=>
bool(true)
["delete_published_posts"]=>
bool(true)
["delete_private_posts"]=>
bool(true)
["edit_private_posts"]=>
bool(true)
["read_private_posts"]=>
bool(true)
["delete_private_pages"]=>
bool(true)
["edit_private_pages"]=>
bool(true)
["read_private_pages"]=>
bool(true)
["delete_users"]=>
bool(true)
["create_users"]=>
bool(true)
["unfiltered_upload"]=>
bool(true)
["edit_dashboard"]=>
bool(true)
["update_plugins"]=>
bool(true)
["delete_plugins"]=>
bool(true)
["install_plugins"]=>
bool(true)
["update_themes"]=>
bool(true)
["install_themes"]=>
bool(true)
["update_core"]=>
bool(true)
["list_users"]=>
bool(true)
["remove_users"]=>
bool(true)
["promote_users"]=>
bool(true)
["edit_theme_options"]=>
bool(true)
["delete_themes"]=>
bool(true)
["export"]=>
bool(true)
["NextGEN Gallery overview"]=>
bool(true)
["NextGEN Use TinyMCE"]=>
bool(true)
["NextGEN Upload images"]=>
bool(true)
["NextGEN Manage gallery"]=>
bool(true)
["NextGEN Manage tags"]=>
bool(true)
["NextGEN Manage others gallery"]=>
bool(true)
["NextGEN Edit album"]=>
bool(true)
["NextGEN Change style"]=>
bool(true)
["NextGEN Change options"]=>
bool(true)
["email_users_notify"]=>
bool(true)
["email_single_user"]=>
bool(true)
["email_multiple_users"]=>
bool(true)
["email_user_groups"]=>
bool(true)
["NextGEN Attach Interface"]=>
bool(true)
["copy_posts"]=>
bool(true)
["ure_edit_roles"]=>
bool(false)
["ure_create_roles"]=>
bool(false)
["ure_delete_roles"]=>
bool(false)
["ure_create_capabilities"]=>
bool(false)
["ure_delete_capabilities"]=>
bool(false)
["ure_manage_options"]=>
bool(false)
["ure_reset_roles"]=>
bool(false)
["edit_ads_txt"]=>
bool(true)
["manage_feed_settings"]=>
bool(true)
["edit_feed_source"]=>
bool(true)
["read_feed_source"]=>
bool(true)
["delete_feed_source"]=>
bool(true)
["edit_feed_sources"]=>
bool(true)
["edit_others_feed_sources"]=>
bool(true)
["publish_feed_sources"]=>
bool(true)
["read_private_feed_sources"]=>
bool(true)
["delete_feed_sources"]=>
bool(true)
["delete_private_feed_sources"]=>
bool(true)
["delete_published_feed_sources"]=>
bool(true)
["delete_others_feed_sources"]=>
bool(true)
["edit_private_feed_sources"]=>
bool(true)
["edit_published_feed_sources"]=>
bool(true)
["manage_feed_source_terms"]=>
bool(true)
["edit_feed_source_terms"]=>
bool(true)
["delete_feed_source_terms"]=>
bool(true)
["assign_feed_source_terms"]=>
bool(true)
["edit_feed_item"]=>
bool(true)
["read_feed_item"]=>
bool(true)
["delete_feed_item"]=>
bool(true)
["edit_feed_items"]=>
bool(true)
["edit_others_feed_items"]=>
bool(true)
["publish_feed_items"]=>
bool(true)
["read_private_feed_items"]=>
bool(true)
["delete_feed_items"]=>
bool(true)
["delete_private_feed_items"]=>
bool(true)
["delete_published_feed_items"]=>
bool(true)
["delete_others_feed_items"]=>
bool(true)
["edit_private_feed_items"]=>
bool(true)
["edit_published_feed_items"]=>
bool(true)
["manage_feed_item_terms"]=>
bool(true)
["edit_feed_item_terms"]=>
bool(true)
["delete_feed_item_terms"]=>
bool(true)
["assign_feed_item_terms"]=>
bool(true)
["edit_feed_blacklist"]=>
bool(true)
["read_feed_blacklist"]=>
bool(true)
["delete_feed_blacklist"]=>
bool(true)
["edit_feed_blacklists"]=>
bool(true)
["edit_others_feed_blacklists"]=>
bool(true)
["publish_feed_blacklists"]=>
bool(true)
["read_private_feed_blacklists"]=>
bool(true)
["delete_feed_blacklists"]=>
bool(true)
["delete_private_feed_blacklists"]=>
bool(true)
["delete_published_feed_blacklists"]=>
bool(true)
["delete_others_feed_blacklists"]=>
bool(true)
["edit_private_feed_blacklists"]=>
bool(true)
["edit_published_feed_blacklists"]=>
bool(true)
["manage_feed_blacklist_terms"]=>
bool(true)
["edit_feed_blacklist_terms"]=>
bool(true)
["delete_feed_blacklist_terms"]=>
bool(true)
["assign_feed_blacklist_terms"]=>
bool(true)
["edit_feed_template"]=>
bool(true)
["read_feed_template"]=>
bool(true)
["delete_feed_template"]=>
bool(true)
["edit_feed_templates"]=>
bool(true)
["edit_others_feed_templates"]=>
bool(true)
["publish_feed_templates"]=>
bool(true)
["read_private_feed_templates"]=>
bool(true)
["delete_feed_templates"]=>
bool(true)
["delete_private_feed_templates"]=>
bool(true)
["delete_published_feed_templates"]=>
bool(true)
["delete_others_feed_templates"]=>
bool(true)
["edit_private_feed_templates"]=>
bool(true)
["edit_published_feed_templates"]=>
bool(true)
["manage_feed_template_terms"]=>
bool(true)
["edit_feed_template_terms"]=>
bool(true)
["delete_feed_template_terms"]=>
bool(true)
["assign_feed_template_terms"]=>
bool(true)
["edit_shortcoder"]=>
bool(true)
["read_shortcoder"]=>
bool(true)
["delete_shortcoder"]=>
bool(true)
["edit_shortcoders"]=>
bool(true)
["edit_others_shortcoders"]=>
bool(true)
["publish_shortcoders"]=>
bool(true)
["delete_shortcoders"]=>
bool(true)
["delete_published_shortcoders"]=>
bool(true)
["delete_others_shortcoders"]=>
bool(true)
["edit_published_shortcoders"]=>
bool(true)
["aioseo_manage_seo"]=>
bool(true)
["aioseo_page_analysis"]=>
bool(true)
["aioseo_page_general_settings"]=>
bool(true)
["aioseo_page_advanced_settings"]=>
bool(true)
["aioseo_page_schema_settings"]=>
bool(true)
["aioseo_page_social_settings"]=>
bool(true)
["rank_math_edit_htaccess"]=>
bool(true)
["rank_math_titles"]=>
bool(true)
["rank_math_general"]=>
bool(true)
["rank_math_sitemap"]=>
bool(true)
["rank_math_404_monitor"]=>
bool(true)
["rank_math_link_builder"]=>
bool(true)
["rank_math_redirections"]=>
bool(true)
["rank_math_role_manager"]=>
bool(true)
["rank_math_search_console"]=>
bool(true)
["rank_math_site_analysis"]=>
bool(true)
["rank_math_onpage_analysis"]=>
bool(true)
["rank_math_onpage_general"]=>
bool(true)
["rank_math_onpage_advanced"]=>
bool(true)
["rank_math_onpage_snippet"]=>
bool(true)
["rank_math_onpage_social"]=>
bool(true)
["rank_math_admin_bar"]=>
bool(true)
["rank_math_analytics"]=>
bool(true)
["rank_math_content_ai"]=>
bool(true)
["srm_manage_redirects"]=>
bool(true)
["SPF Manage Analytics"]=>
bool(false)
["administrator"]=>
bool(true)
["editor"]=>
bool(true)
}
["filter"]=>
NULL
["site_id":"WP_User":private]=>
int(1)
}
Or could be about $4,000 installed if you are using wood Marvins (we got a quote for $30,000 for 15 of these). It will take less than a day to install two windows.